Emerson ROC809 User manual

Remote Automation Solutions
Part Number D301217X012
July 2017
ROC800-Series Remote Operations Controller
Instruction Manual
ROC809
ROC827

ROC800-Series Instruction Manual
ii Revised July-2017
Revision Tracking Sheet
July 2017
This manual may be revised periodically to incorporate new or updated information. The revision date
of each page appears at the bottom of the page opposite the page number. A change in revision date
to any page also changes the date of the manual that appears on the front cover. Listed below is the
revision date of each page (if applicable):
Page
Revision
All pages
July-2017
All pages
October-2016
All pages
January-2016
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December-2015
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July-2014
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May-2013
All pages
November-2010
All pages
June-2009
Initial issue
March-2006

ROC800-Series Instruction Manual
Revised July-2017 iii
Contents
Chapter 1 –General Information 1-1
1.1 Scope of Manual ..............................................................................................................................1-2
1.2 Series 1 versus Series 2 Architecture..............................................................................................1-3
1.3 Hardware..........................................................................................................................................1-5
1.3.1 Central Processor Unit (CPU)..............................................................................................1-9
1.3.2 Real-Time Clock (RTC)........................................................................................................1-9
1.3.3 Diagnostic Monitoring...........................................................................................................1-9
1.3.4 Options...............................................................................................................................1-10
1.4 FCC Information.............................................................................................................................1-11
1.5 Firmware ........................................................................................................................................1-11
1.5.1 Historical Database and Event & Alarm Log......................................................................1-15
1.5.2 Meter Runs and Stations....................................................................................................1-16
1.5.3 ROC800 Flow Calculations................................................................................................1-16
1.5.4 ROC800L Flow Calculations..............................................................................................1-17
1.5.5 Automatic Self Tests..........................................................................................................1-17
1.5.6 Low Power Modes..............................................................................................................1-18
1.5.7 Proportional, Integral, and Derivative (PID) .......................................................................1-19
1.5.8 Function Sequence Table (FST)........................................................................................1-19
1.6 ROCLINK 800 Configuration Software ..........................................................................................1-20
1.7 ROC800L Software........................................................................................................................1-22
1.8 DS800 Development Suite Software .............................................................................................1-23
1.9 Expansion Backplane.....................................................................................................................1-24
1.10 FOUNDATION™Fieldbus Interface................................................................................................1-24
1.11 Security Gateway.........................................................................................................................1-24
1.12 Additional Technical Information..................................................................................................1-25
Chapter 2 –Installation and Use 2-1
2.1 Installation Requirements.................................................................................................................2-1
2.1.1 Environmental Requirements...............................................................................................2-2
2.1.2 Site Requirements................................................................................................................2-2
2.1.3 Compliance with Hazardous Area Standards......................................................................2-3
2.1.4 Power Installation Requirements .........................................................................................2-4
2.1.5 Grounding Installation Requirements...................................................................................2-4
2.1.6 I/O Wiring Requirements......................................................................................................2-5
2.2 Required Tools.................................................................................................................................2-5
2.3 Housing............................................................................................................................................2-5
2.3.1 Removing and Replacing End Caps....................................................................................2-6
2.3.2 Removing and Installing Wire Channel Covers ...................................................................2-6
2.3.3 Removing and Installing Module Covers .............................................................................2-7
2.4 Mounting the ROC800 on a DIN Rail...............................................................................................2-7
2.4.1 Installing the DIN Rail...........................................................................................................2-9
2.4.2 Securing the ROC800 to the DIN Rail .................................................................................2-9
2.4.3 Removing the ROC800 from the DIN Rail.........................................................................2-10
2.5 ROC800-Series Expansion Backplane (EXP) ...............................................................................2-10
2.5.1 Attaching an Expansion Backplane ...................................................................................2-11
2.5.2 Removing an Expansion Backplane ..................................................................................2-12
2.6 Central Processing Unit (CPU) ......................................................................................................2-13
2.6.1 Removing the CPU Module................................................................................................2-17
2.6.2 Installing the CPU Module..................................................................................................2-17
2.7 License Keys..................................................................................................................................2-18

ROC800-Series Instruction Manual
iv Revised July-2017
2.7.1 Installing a License Key .....................................................................................................2-19
2.7.2 Removing a License Key...................................................................................................2-19
2.8 Startup and Operation....................................................................................................................2-20
2.8.1 Startup................................................................................................................................2-20
2.8.2 Operation ...........................................................................................................................2-21
Chapter 3 –Power Connections 3-1
3.1 Power Input Module Descriptions ....................................................................................................3-1
3.1.1 12-Volt DC Power Input Module (PM-12) ............................................................................3-1
3.1.2 24-Volt DC Power Input Module (PM-24) ............................................................................3-3
3.1.3 30-Volt DC Power Input Module (PM-30) ............................................................................3-4
3.1.4 Auxiliary Output (AUX+ and AUX–) .....................................................................................3-8
3.1.5 Switched Auxiliary Output (AUXSW+ and AUXSW–)........................................................3-10
3.2 Determining Power Consumption..................................................................................................3-11
3.2.1 Tuning the Configuration....................................................................................................3-15
3.3 Removing a Power Input Module...................................................................................................3-25
3.4 Installing a Power Input Module.....................................................................................................3-27
3.5 Connecting the ROC800 to Wiring.................................................................................................3-27
3.5.1 Wiring the DC Power Input Module....................................................................................3-28
3.5.2 Wiring the External Batteries .............................................................................................3-29
3.5.3 Replacing the Internal Battery............................................................................................3-30
3.6 Additional Technical Information....................................................................................................3-32
Chapter 4 –Input/Output Modules 4-1
4.1 I/O Module Overview........................................................................................................................ 4-1
4.2 Installation........................................................................................................................................4-4
4.2.1 Removing and Installing Wire Channel Covers ...................................................................4-4
4.2.2 Removing and Installing Module Slot Covers......................................................................4-5
4.2.3 Installing an I/O Module .......................................................................................................4-5
4.2.4 Removing an I/O Module .....................................................................................................4-7
4.2.5 Wiring I/O Modules............................................................................................................... 4-7
4.3 Analog Input (AI) Modules ...............................................................................................................4-7
4.4 Analog Output (AO) Modules...........................................................................................................4-9
4.5 Discrete Input (DI) Modules ...........................................................................................................4-10
4.6 Pulse Input (PI) Modules................................................................................................................4-12
4.7 Discrete Output (DO) Modules.......................................................................................................4-13
4.8 Discrete Output Relay (DOR) Modules..........................................................................................4-15
4.9 Resistance Temperature Detector (RTD) Input Modules ..............................................................4-16
4.10 Advanced Pulse Module (APM)...................................................................................................4-18
4.11 Multi-Variable Sensor Input/Output (MVS I/O).............................................................................4-21
4.12 Alternating Current Input/Output (AC I/O) Module.......................................................................4-26
4.13 Thermocouple (TC) Input Module................................................................................................4-28
4.14 Highway Addressable Remote Transducer (HART®) Module.....................................................4-32
4.15 IEC 62591 Module .......................................................................................................................4-34
4.16 APP 485 Module..........................................................................................................................4-36
4.17 Additional Technical Information..................................................................................................4-37
Chapter 5 –Communications 5-1
5.1 Communication Ports and Modules Overview.................................................................................5-1
5.2 Installing Communication Modules ..................................................................................................5-3
5.3 Removing a Communication Module............................................................................................... 5-5
5.4 Wiring Communication Modules ......................................................................................................5-5
5.5 Local Operator Interface (LOI).........................................................................................................5-5

ROC800-Series Instruction Manual
Revised July-2017 v
5.5.1 Using the LOI .......................................................................................................................5-7
5.6 Ethernet Communication..................................................................................................................5-7
5.7 EIA-232 (RS-232) Serial Communication ........................................................................................5-9
5.8 EIA-422/485 (RS-422/485) Serial Communications Module .........................................................5-10
5.8.1 EIA-422/485 (RS-422/485) Jumpers & Termination Resistors..........................................5-11
5.9 Dial-up Modem Communication Module........................................................................................5-13
5.10 Multi-Variable Sensor (MVS) Interface Module ...........................................................................5-14
5.11 Network Radio Module (NRM).....................................................................................................5-14
5.12 Additional Technical Information..................................................................................................5-16
Chapter 6 –Troubleshooting 6-1
6.1 Guidelines ........................................................................................................................................6-1
6.2 Checklists.........................................................................................................................................6-2
6.2.1 Serial Communications........................................................................................................6-2
6.2.2 I/O Point ...............................................................................................................................6-3
6.2.3 Software...............................................................................................................................6-3
6.2.4 Powering Up.........................................................................................................................6-4
6.2.5 MVS or MVS I/O Module......................................................................................................6-4
6.2.6 IEC 62591 Module ...............................................................................................................6-5
6.3 Procedures.......................................................................................................................................6-5
6.3.1 Preserving Configuration and Log Data...............................................................................6-5
6.3.2 Restarting the ROC800........................................................................................................6-5
6.3.3 Troubleshooting Analog Input Modules ...............................................................................6-6
6.3.4 Troubleshooting Analog Output Modules.............................................................................6-8
6.3.5 Troubleshooting Discrete Input Modules .............................................................................6-9
6.3.6 Troubleshooting Discrete Output Modules...........................................................................6-9
6.3.7 Troubleshooting Discrete Output Relay Modules ..............................................................6-10
6.3.8 Troubleshooting Pulse Input Modules................................................................................6-10
6.3.9 Troubleshooting RTD Input Modules .................................................................................6-11
6.3.10 Troubleshooting Thermocouple Input (T/C) Modules ......................................................6-12
6.3.11 Troubleshooting Advanced Pulse Modules......................................................................6-14
6.3.12 Network Radio Modules...................................................................................................6-14
Chapter 7 –Calibration 7-1
7.1 Calibration Overview........................................................................................................................7-1
7.2 Calibration Frequency......................................................................................................................7-1
7.3 Preparing for Calibration..................................................................................................................7-2
Appendix A –Glossary A-1
Appendix B –Wiring Diagrams B-1
B.1 Daniel Senior Sonic Meter to PI Module..........................................................................................B-1
B.2 Daniel 1818A and 1838 Turbine Pre-Amp to PI Module..................................................................B-2
B.3 Micro Motion RFT9739 & 2400S Transmitters to PI Module ...........................................................B-3
B.4 Micro Motion RFT9739 & 2400S Transmitters to APM Module.......................................................B-4
B.5 3- and 4-Wire RTD to RTD Module..................................................................................................B-5
B.6 Daniel Senior Sonic Meter to APM Module......................................................................................B-6
B.7 Daniel 1818A and 1838 Dual Turbine Pre-Amp to APM Module.....................................................B-7
B.8 Daniel 1818A and 1838 Turbine Pre-Amp to APM Module .............................................................B-8
B.9 Two-Stage Valve with Two Limit Switches to ACIO Module............................................................B-9

ROC800-Series Instruction Manual
vi Revised July-2017
Index I-1

ROC800-Series Instruction Manual
Revised July-2017 General Information 1-1
Chapter 1 –General Information
In This Chapter
1.1 Scope of Manual.....................................................................................1-2
1.2 Series 1 versus Series 2 Architecture.....................................................1-3
1.3 Hardware ................................................................................................1-5
1.3.1 Central Processor Unit (CPU)......................................................1-9
1.3.2 Real-Time Clock (RTC)................................................................1-9
1.3.3 Diagnostic Monitoring ..................................................................1-9
1.3.4 Options.......................................................................................1-10
1.4 FCC Information....................................................................................1-11
1.5 Firmware...............................................................................................1-11
1.5.1 Historical Database and Event & Alarm Log..............................1-15
1.5.2 Meter Runs and Stations ...........................................................1-16
1.5.3 ROC800 Flow Calculations........................................................1-16
1.5.4 ROC800L Flow Calculations......................................................1-17
1.5.5 Automatic Self Tests..................................................................1-17
1.5.6 Low Power Modes .....................................................................1-18
1.5.7 Proportional, Integral, and Derivative (PID)...............................1-19
1.5.8 Function Sequence Table (FST)................................................1-19
1.6 ROCLINK 800 Configuration Software .................................................1-20
1.7 ROC800L Software...............................................................................1-22
1.8 DS800 Development Suite Software ....................................................1-23
1.9 Expansion Backplane ...........................................................................1-24
1.10 Foundation™ Fieldbus Interface...........................................................1-24
1.11 Security Gateway..................................................................................1-24
1.12 Additional Technical Information...........................................................1-25
This manual focuses on the hardware aspects of the ROC809 and
ROC827 Remote Operations Controllers –also known as the ROC800-
Series controllers (“ROC800”) –and the ROC800-Series expansion
backplanes (“EXPs”), that attach only to the ROC827 and provide
increased I/O capabilities.
For technical information on the ROC800s, refer to the technical
specifications ROC800:800, and ROC800:FW1 (available at
www.EmersonProcess.com/Remote). For information about the software
you use to configure the ROC800-Series, refer to the ROCLINK™800
Configuration Software User Manual (for ROC800-Series) (part
D301250X012).
ROC800L
This manual also discusses the hardware for the ROC800L, a
ROC800-Series device that is factory-loaded with specific firmware
and software designed to measure and manage the flow of liquid
hydrocarbons.
For technical information on the ROC800L, refer to the technical
specifications ROC800:800L, and ROC800:SW1. For information about
the software you use to configure the ROC800L, refer to the ROCLINK
800 Configuration Software User Manual (for ROC800L) (part
D301246X012).

ROC800-Series Instruction Manual
1-2 General Information Revised July-2017
ROC800 or
ROC800L?
The ROC800-Series are principally designed to measure the flow of
natural gas in accordance with AGA and other standards. Firmware
and user programs enhance that functionality.
To meet market demands, Remote Automation Solutions initially
developed user programs to perform flow calculations for certain
liquids. These programs grew to encompass flow and volume
corrections for most liquid hydrocarbons (as defined by the API in the
Manual for Petroleum Measurement Systems, or MPMS). Finally, to
modularize these capabilities and ensure the integrity of the AGA
calculations, we developed a suite of user programs enabled by a license
key.
This chapter details the structure of this manual and provides an
overview of the ROC800 and its components.
The ROC800 is a microprocessor-based controller that provides the
functions required for a variety of field automation applications. It is
ideal for applications requiring general logic and sequencing control;
historical data archiving; multiple communication ports; Proportional,
Integral, and Derivative (PID) control; and flow measurement on up to
twelve meter runs.
1.1 Scope of Manual
This manual contains the following chapters:
Chapter 1
General Information
Provides an overview of the hardware and
specifications for the ROC800 and the ROC800-
Series expansion backplanes (EXPs).
Chapter 2
Installation and Use
Provides information on installation, tools, wiring,
mounting the ROC800, and other essential elements
of the ROC800 and EXPs.
Chapter 3
Power Connections
Provides information on the Power Input modules
available for the ROC800 base unit and provides
worksheets to help determine power requirements for
the ROC800 configurations.
Chapter 4
Input/Output (I/O)
Modules
Provides information for the Input/Output (I/O)
modules available for the ROC800 and EXPs.
Chapter 5
Communications
Provides information for the built-in communication
capabilities and the optional communication modules
available for the ROC800.
Chapter 6
Troubleshooting
Provides information on diagnosing and correcting
problems with the ROC800.
Chapter 7
Calibration
Provides information for calibrating Analog Inputs,
HART®Inputs, RTD Inputs, and MVS Inputs for the
ROC800.
Glossary
Provides generalized definitions of acronyms and
terms.
Wiring Diagrams
Provides diagrams that show how to wire the
modules to various industry-standard devices.

ROC800-Series Instruction Manual
Revised July-2017 General Information 1-3
Index
Provides an alphabetic listing of items and topics
contained in this manual.
1.2 Series 1 versus Series 2 Architecture
The Series 2 ROC800 architecture incorporates a redesigned CPU
module and redesigned expansion I/O backplanes to provide major
system advancements. These include an increase in processor speed
(from 50MHz to 65MHz), an increase in SRAM for User C programs
(20K to 100K), an increase in flash memory (4Mb to 16Mb), an
increase in DRAM (8Mb to 16Mb), and greater general flexibility in
module placement. For easy visual identification, the printed circuit
board (PCB) for the Series 2 CPU module, the PCB for the Series 2 base
unit and expansion backplanes, and the Series 2 ROC800 ABS plastic
housing are all black. Additionally, the Series 2 CPU module is labeled
CPU Series 2 (see Figure 1-1).
Note: In the Series 1 ROC800, the PCBs for the CPU module, the base
unit, and the backplanes are green; the ABS plastic housing is
gray.
What’s
Compatible?
In the Series 2 ROC827, you cannot insert a Series 1 CPU module
into a Series 2 base unit or attach Series 1 expansion backplanes to
Series 2 base units or expansion backplanes. Firmware is not available
to upgrade a Series 1 CPU module to the new functionally. To obtain
the Series 2 enhancements, you must obtain and use a Series 2 CPU
module.
The architecture of the ROC809’s fixed backplane allows you to insert a
black Series 2 CPU module into a Series 1 (green) backplane. However,
firmware is not available to upgrade a Series 1 CPU module to the new
functionality. To obtain the Series 2 enhancements, you must obtain and
use a Series 2 CPU module.
Note: The ROC800L functions only on the Series 2 hardware
platform.
Module Placement
Table 1-1 compares module placement in the ROC809, based on the
installation of a Series 1 or Series 2 CPU. Table 1-2 compares module
placement in the ROC827, based on the installation of a Series 1 or
Series 2 CPU.
Table 1-1. ROC809 Module Placement (Series 1 CPU vs. Series 2 CPU)
Module
ROC809 Series 1 CPU
ROC809 Series 2 CPU
Module Color
AI-12
Any
Any
Grey
AI-16
Any1
Any
Black
AO
Any
Any
Grey
APM
Any2
Any
Grey

ROC800-Series Instruction Manual
1-4 General Information Revised July-2017
Module
ROC809 Series 1 CPU
ROC809 Series 2 CPU
Module Color
RS-485
1st three slots
1st three slots
Grey
RS-232
1st three slots
1st three slots
Grey
Dial-up Modem
1st three slots
1st three slots
Grey
MVS3
1st three slots
1st three slots
Grey
MVS I/O
1st three slots
Any
Black
DI
Any
Any
Grey
HART
Any
Any
Grey
HART-2
None
Any4
Black
DO
Any
Any
Grey
DOR
Any
Any
Grey
RTD
Any
Any
Grey
TC
Any
None
Grey
TC2
None
Any5
Black
PI
Any
Any
Grey
IEC 62591
None
Any
Black
NRM
None
1st three slots
Black
AC I/O
Any
Any
Grey
APP485
Any
Any
Black
1With firmware version 2.13 or greater
2With firmware version 2.10 or greater
3The ROC809 supports a maximum of two MVS modules
4With firmware version 3.10 or greater
5With firmware version 3.20 or greater
Table 1-2. ROC827 Module Placement (Series 1 CPU vs. Series 2 CPU)
Module
ROC827 Series 1 CPU
ROC827 Series 2 CPU
Module Color
AI-12
Any
Any
Grey
AI-16
Any
Any
Black
AO
Any
Any
Grey
APM
1st three slots2
Any
Grey
RS-485
1st three slots
1st three slots
Grey
RS-232
1st three slots
1st three slots
Grey
Dial-up Modem
1st three slots
1st three slots
Grey
MVS3
1st three slots
1st three slots
Grey
MVS I/O
1st three slots
Any
Black
DI
Any
Any
Grey
HART
1st three slots
Any
Black
HART-2
None
Any
Black
DO
Any
Any4
Grey
DOR
Any
Any
Grey
RTD
Any
Any
Grey
TC
Any
None
Grey
TC2
None
Any5
Black
PI
Any
Any
Grey
IEC 62591
None
Any
Black
NRM
None
1st three slots
Black
AC I/O
1st three slots
Any
Grey
APP485
Any
Any
Black
1With firmware version 2.13 or greater

ROC800-Series Instruction Manual
Revised July-2017 General Information 1-5
2With firmware version 2.10 or greater
3The ROC827 supports a maximum of two MVS modules
4With firmware version 3.10 or greater
5With firmware version 3.20 or greater
Note: For further information, refer to the technical specification
ROC800. For further information on compatibility and migration
issues, refer to the Remote Automation Solutions Technical
Support White Paper WP0800004R1.
1.3 Hardware
The ROC809 and ROC827 are highly innovative and versatile units
with an integrated backplane to which the central processor unit (CPU),
power input module, communication modules, and I/O modules
connect. The ROC809 (see Figure 1-1) has nine module slots, of which
three can house communication modules. The ROC827 base unit
(shown on the left-hand side of Figure 1-2) has three I/O module slots.
The ROC800-Series expansion backplanes (EXPs) attach to the
ROC827 base unit (see Figure 1-2). Each EXP provides six additional
I/O module slots. The ROC827 can support up to four EXPs, for a total
of 27 I/O module slots (six slots per EXP plus the three I/O slots on the
ROC827 base unit).
The ROC800s use a Power Input module to convert external input
power to the voltage levels required by the electronics and to monitor
voltage levels to ensure proper operation. Three Power Input modules—
12 Volts dc (PM-12), 24 Volts dc (PM-24), and 30 Volts dc (PM-30)—
are available. For more information on the Power Input modules, refer
to Chapter 3, Power Connections.
The ROC800s support a variety of communication protocols: ROC Plus,
Modbus, Modbus TCP/IP, Modbus encapsulated in TCP/IP, and
Modbus with Electronic Flow Measurement (EFM) extensions.
Figure 1-1 shows the housing, typical I/O modules, and communication
modules installed in a ROC809. The patented ABS (Acrylonitrile
Butadiene Styrene) plastic housing has wire covers to protect the wiring
terminals. The housing includes DIN rail mounts for mounting the unit
on a panel or in a user-supplied enclosure. Patent 6,771,513 covers the
ROC800 enclosure (refer to www.uspto.gov).

ROC800-Series Instruction Manual
1-6 General Information Revised July-2017
A
Power Supply Module
B
CPU
C
LOI (Local Port) EIA-232 (RS-232D)
D
Built-in Ethernet (Comm1)
E
Built-in EIA-232 (RS-232C) (Comm2)
F
Module (1 of 9 max)
G
Wire Channel Cover
H
Right End Cap
Figure 1-1. ROC809
Module Placement
The left-most slots in the ROC809 (Figure 1-1) accommodate the
Power Input module and the CPU module. The remaining nine slots
can accommodate either communication modules or I/O modules (see
Table 1-1).
Note: If you use the optional communications modules, you can only
place those modules in the three slots (1, 2, or 3) immediately to
the right of the Power Input and CPU modules. Place I/O
modules in any available slot.
Figure 1-2 shows a ROC827 base unit (left) and a typical expansion
backplane (EXP) (right) populated with a full complement of six I/O
modules. Each EXP is composed of the same plastic housing as the
ROC827, contains six I/O slots, and has a powered backplane that easily
attaches to the ROC827 and other EXPs.
B
C
G
H
A
D
E
F

ROC800-Series Instruction Manual
Revised July-2017 General Information 1-7
A
Power Supply Module
B
CPU
C
LOI (Local Port) EIA-232 (RS-232D)
D
Built-in Ethernet (Comm1)
E
Built-in EIA-232 (RS-232C) (Comm2)
F
Module (1 of 27 max)
G
Wire Channel Cover
H
Right End Cap
Figure 1-2. ROC827 Base Unit with One Expansion Backplane (separated for clarity)
I/O Modules
The ROC800 and EXPs support various types of Input/Output (I/O)
modules, which can satisfy a wide variety of field I/O requirements
(refer to Chapter 4, Input/Output Modules). You can place I/O
modules in any available slot. I/O modules include:
▪Analog Inputs (AI).
▪Analog Outputs (AO).
▪Discrete Inputs (DI).
▪Discrete Outputs (DO).
▪Digital Relay Outputs (DOR).
▪Advance Pulse Module (APM).
▪Alternating Current I/O (ACIO).
▪Multi-variable Sensor (MVS I/O).
▪Highway Addressable Remote Transducer (HART®) Module.
▪Pulse Inputs (PI) –High/Low Speed.
▪Resistance Temperature Detector Inputs (RTD).
▪Thermocouple (TC) Inputs.
▪IEC 62591.
▪APP 485.
A
B
C
D
E
F
G
H

ROC800-Series Instruction Manual
1-8 General Information Revised July-2017
Communication Ports
and Modules
The ROC800 provides up to six communication ports (refer to
Chapter 5, Communications). Three communication ports are built-in:
▪Local Operator Interface (LOI) –Local Port EIA-232 (RS-232D).
▪Ethernet –10BASE-T twisted pair. IEEE multi-segment 10
MB/second baseband Ethernet.
▪EIA-232 (RS-232C) –Comm2 Port for point-to-point asynchronous
serial communications.
Communication modules (which you install only in slots 1 [Comm3], 2
[Comm4], or 3 [Comm5] in the ROC800) provide additional ports for
communicating with a host computer or other devices. Modules include:
▪EIA-232 (RS-232C) –Point-to-point asynchronous serial
communications include Data Terminal Ready (DTR) support,
Ready To Send (RTS) support, and radio power control.
▪EIA-422/EIA-485 (RS-422/RS-485) –Point-to-point (EIA-422) or
multiple-point (EIA-485) asynchronous serial communications.
▪Multi-Variable Sensor (MVS) –Interfaces with multi-variable
sensors.
Note: You can install up to two MVS modules per ROC800. This
limit does not apply to the MVS I/O module.
▪Dial-up modem –Communications over a telephone network
(14.4K V.42 bis with throughput up to 57.6K bps).
▪NRM –Network Radio Module
Caution
The design of ROC800-Series communications and I/O modules
supports “hot-swapping” (replacing similar modules in the same slot)
and “hot-plugging” (inserting modules into an empty slot) while the
ROC800 is powered. However, it is a good safety practice with any
electrical device to first remove power before you make internal
connections. If you find it necessary to hot-swap or hot-plug a module,
first review the most current specification sheet for that module to
ensure both your safety and the integrity of data that module may
provide.
FOUNDATION™Fieldbus
Interface
The FOUNDATION Fieldbus Interface (FFI) is a ROC800-based
solution that enables a ROC800 to support bi-directional multi-drop
digital communications between fieldbus devices.
While you can implement the FFI as a stand-alone device, you can also
install it as an integral part of the ROC827 housing, since the FFI is
based on a standard Series 2 EXP. However, the FFI does not expand
the I/O capability of the ROC827 beyond the 27 module-limit.
For technical information on the FFI, refer to the technical
specifications ROC800:FFI or the FOUNDATION Fieldbus Interface
Instruction Manual (part D301461X012). For information about the
software you use to configure the FFI, refer to the Field Interface
Configurator User Manual (part D301575X012).

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Revised July-2017 General Information 1-9
1.3.1 Central Processor Unit (CPU)
The CPU contains the microprocessor, the firmware, connectors to the
backplane, the three built-in communication ports (two with LEDs), a
LED low power wakeup button, a RESET button, the application
license key connectors, a STATUS LED indicating system integrity, and
the main processor.
CPU components include:
▪32-bit Motorola MPC862 Quad Integrated Communications
Controller (PowerQUICC) PowerPC processor. Bus clock frequency
at 65 MHz with a watchdog timer.
▪Flash ROM (Read-Only Memory).
▪SDRAM (Synchronous Dynamic Random Access Memory).
▪Diagnostic monitoring.
▪Real-Time Clock.
▪Automatic self-tests.
▪Power saving modes.
▪Local Operator Interface (LOI) EIA-232 (RS-232D) Local Port.
▪EIA-232 (RS-232C) serial Comm2 port.
▪Ethernet Comm1 port.
1.3.2 Real-Time Clock (RTC)
You can set the ROC800’s real-time clock (RTC) for year, month, day,
hour, minute, and second. The clock provides time stamping of the
database values. The battery-backed clock firmware tracks the day of
the week and corrects for leap year. The time chip automatically
switches to backup power when the ROC800 loses primary input power.
The internal Sanyo 3-volt CR2430 lithium battery provides backup for
the data and the RTC when the main power is not connected. The
battery has a one-year minimum backup life with the battery installed,
the jumper disengaged, and no power applied to the ROC800. The
battery has a ten-year backup life with the backup battery installed and
power applied to the ROC800 or when the battery is removed from the
ROC800.
Note: If the real-time clock does not keep the current time when you
remove power, replace the lithium battery.
1.3.3 Diagnostic Monitoring
The ROC800 has diagnostic inputs incorporated into the circuitry for
monitoring system integrity. Use ROCLINK 800 software to access the
System Analog Inputs (on the directory tree, double-click I/O, System
Analog Input, and #1, Battery to open the System Analog Input
screen). Refer to Table 1-3.

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1-10 General Information Revised July-2017
Table 1-3. System Analog Inputs
System AI
Point
Number
PM-12
Function
PM-24
Function
PM-30
Function
1
Battery Input Voltage
Module Voltage
Module Voltage
2
Charge in Voltage
Module Voltage
Voltage In
3
Module Voltage
Module Voltage
Module Voltage
4
Not Used
Not Used
Not Used
5
On Board Temperature
On Board Temperature
On Board Temperature
Note: The PM-24 module’s DC-to-DC converter supplies
approximately 12 volts to the backplane, which is reflected in
the on-screen values for points 1 through 3.
1.3.4 Options
The ROC800 allows you to choose from a wide variety of options to
suit many applications.
Optional communication modules include EIA-232 (RS-232) serial
communications, EIA-422/485 (RS-422/485) serial communications,
Multi-Variable Sensor (MVS), dial-up modem communications, and the
HART module (refer to Chapter 5, Communications).
Each MVS module can provide power and communications for up to six
MVS sensors (refer to Chapter 5, Communications).
Optional I/O modules include Analog Inputs (AI), Analog Outputs
(AO), Discrete Inputs (DI), Discrete Outputs (DO), Discrete Output
Relays (DOR), Pulse Inputs (PI), Resistance Temperature Detector
(RTD) Inputs, Thermocouple (T/C) Inputs, Advanced Pulse (APM), and
Alternating Current I/O (ACIO) (refer to Chapter 4, Input/Output
Modules).
The optional application license keys provide extended functionality,
such as the use of the DS800 Development Suite Software (the IEC
61131-3 compliant programming environment) and various user
programs, and enable embedded meter runs. For example, you need to
install a license key with the proper license in the ROC800 to perform
AGA calculations. Refer to Section 1.6, DS800 Development Suite
Software.
The Local Operator Interface (LOI local port) communications terminal
requires the installation of an LOI cable between the ROC800 and your
PC. The LOI port uses an RJ-45 connector with a standard EIA-232
(RS-232D) pin out.

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Revised July-2017 General Information 1-11
1.4 FCC Information
This equipment complies with Part 68 of the FCC rules. Etched on the
modem assembly is, among other information, the FCC certification
number and Ringer Equivalence Number (REN) for this equipment. If
requested, this information must be provided to the telephone company.
This module has an FCC-compliant telephone modular plug. The
module is designed to be connected to the telephone network or
premises’ wiring using a compatible modular jack that is Part 68-
compliant.
The REN is used to determine the quantity of devices that may be
connected to the telephone line. Excessive RENs on the telephone line
may result in the devices not ringing in response to an incoming call.
Typically, the sum of the RENs should not exceed five (5.0). Contact
the local telephone company to determine the total number of devices
that may be connected to a line (as determined by the total RENs).
If this equipment and its dial-up modem causes harm to the telephone
network, the telephone company will notify you in advance that
temporary discontinuance of service may be required. However, if
advance notice is not practical, the telephone company will notify the
customer as soon as possible. In addition, you will be advised of your
right to file a complaint with the FCC if you believe it necessary.
The telephone company may make changes to its facilities, equipment,
operations, or procedures that could affect the operation of the
equipment. If this happens, the telephone company will provide advance
notice so you can make the necessary modifications to maintain
uninterrupted service.
If you experience trouble with this equipment or the dial-up modem,
contact Emerson Process Management’s Remote Automation Solutions
(at 1-800-537-9313) for repair or warranty information. If the
equipment harms the telephone network, the telephone company may
request that you disconnect the equipment until the problem is resolved.
1.5 Firmware
The firmware that resides in Flash Read-Only Memory (ROM) contains
the operating system, ROC Plus communications protocol, and
application software. The CPU module provides battery-backed Static
Random Access Memory (SRAM) for saving configurations, storing
events, alarms, and the historical logs.
ROC800 or ROC800L
The ROC800-Series supports either of two sets of firmware. The
original ROC800 firmware is designed primarily to support gas flow
measurements. The ROC800L firmware is designed to support both
liquids and gas flow measurements.

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1-12 General Information Revised July-2017
Note:To convert a ROC800 to a ROC800L, refer to the ROC800L
Field Conversion Guide (part D301683X012 ).
The ROC800-Series Operating System firmware provides a complete
operating system for the ROC800. The firmware in the ROC800 is
field-upgradeable using a serial connection or the Local Operator
Interface (LOI) local port. For more information, refer to the ROCLINK
800 Configuration Software User Manual (for ROC800-Series) (part
D301250X012) or the ROCLINK 800 Configuration Software User
Manual (for ROC800L) (part D301246X012)
The firmware supports:
▪Input/Output Database.
▪Historical Database.
▪Event and Alarm Log Databases.
▪Applications (PID, AGA, FST, and such).
▪Measurement Station Support.
▪Determining Task Execution.
▪Real-Time Clock.
▪Establishing and Managing Communications.
▪Self-Test Capability.
The firmware makes extensive use of configuration parameters, which
you configure using ROCLINK 800 software.
RTOS
The ROC800-Series firmware uses a pre-emptive, multi-tasking,
message-based Real-Time Operating System (RTOS) with hardware-
supported memory protection. Tasks are assigned priorities and, at any
given time, the operating system determines which task will run. For
instance, if a lower priority task is executing and a higher priority task
needs to run, the operating system suspends the lower priority task,
allows the higher priority task to run to completion, then resumes the
lower priority task’s execution. This is more efficient than a “time
sliced” architecture type.
TLP
The ROC800 reads data from and writes data to data structures called
“points.” A “point” is a ROC Plus Protocol term for a grouping of
individual parameters (such as information about an I/O channel) or
some other function (such as a flow calculation). Points are defined by
a collection of parameters and have a numerical designation that
defines the type of point (for example, point type 101 refers to a
Discrete Input and point type 103 refers to an Analog Input).
The logical number indicates the physical location for the I/O or the
logical instance for non-I/O points within the ROC800. Parameters are
individual pieces of data that relate to the point type. For instance, the
raw A/D value and the low scaling value are parameters associated with
the Analog Input point type, 103. The point type attributes define the

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Revised July-2017 General Information 1-13
database point to be one of the possible types of points available to the
system.
Together, these three components—the type (T), the logical (L), and the
parameters (P)—can be used to identify specific pieces of data that
reside in a ROC800’s data base. Collectively, this three-component
address is often called a “TLP.”
I/O Database
The Input/Output database contains the input and output points the
operating system firmware supports, including the System Analog
Inputs, Multi-Variable Sensor (MVS) inputs, and Input/Output (I/O)
modules. The firmware automatically determines the point type and
point number location of each installed I/O module. It then assigns
each input and output to a point in the database and includes user-
defined configuration parameters for assigning values, statuses, or
identifiers. The firmware scans each input, placing the values into the
respective database point. These values are available for display and
historical archiving.
SRBX
Spontaneous-Report-by-Exception (SRBX or RBX) communication
allows the ROC800 to monitor for alarm conditions and, upon
detecting an alarm, automatically reports the alarm to a host computer.
Any kind of communications link—dial-up modem or serial line—can
perform SRBX as long as the host is set up to receive field-initiated
calls.
Protocols
The firmware supports both the ROC Plus protocol and the Modbus
master and slave protocol. ROC Plus protocol can support serial
communications and radio or telephone modem communications to
local or remote devices, such as a host computer.
The firmware also supports the ROC Plus protocol over TCP/IP on the
Ethernet port. The ROC Plus protocol is similar to the ROC
300/400/500 protocol, since it used many of the same opcodes.
For more specific information refer to the ROC Plus Protocol
Specifications Manual (part D301180X012) or the ROC800L Protocol
Specifications Manual (part D301659X012), or contact your local sales
representative.
The ROC800-Series firmware also supports Modbus protocol as either
master or slave device using Remote Terminal Unit (RTU) or American
Standard Code for Information Interchange (ASCII) modes. This allows
you to easily integrate the ROC800 into other systems. Extensions to the
Modbus protocol allow the retrieval of history, event, and alarm data in
Electronic Flow Metering (EFM) Measurement applications.
Note:In Ethernet mode, the firmware supports Modbus both in master
and slave mode.
The Ethernet port supports up to six ROC Plus connections, six
Modbus Slave connections, and one Modbus Master connection
all at the same time.

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1-14 General Information Revised July-2017
Security
The ROCLINK 800 software also secures access to the ROC800. You
can define and store a maximum of 16 case-sensitive user identifiers
(User IDs). In order for the ROC800 to communicate, a case sensitive
log-on ID supplied to the ROCLINK 800 software must match one of
the IDs stored in the ROC800.
The operating system firmware supports the application-specific
firmware supplied in the Flash ROM. The application firmware includes
Proportional, Integral, and Derivative (PID) Control; FSTs;
Spontaneous-Report-By-Exception (SRBX) Communications
Enhancement; optional American Gas Association (AGA) Flow
calculations with station support; and optional IEC 61131-3 language
programs (using DS800 Development Suite software). Applications
reside in the firmware, so you do not need to re-build and download the
firmware for changes in calculation method.
Input Module
Addressing
The Series 1 ROC800 defaults to 16-point addressing, but
automatically switches to 8-point addressing if you add a fourth or
fifth expansion backplane.
The Series 2 ROC800 defaults to 8-point addressing. To switch to 16-
point addressing, you must manually select this option.
Note: To change input module addressing, select ROC > Device
Information in ROCLINK 800. On the Device Information
screen’s General tab, select either 8-Points Per Module or 16-
Points Per Module in the Logical Compatibility Mode frame
and click Apply.
The difference between 16-point and 8-point addressing becomes
critical when you have a host device reading data from specific TLPs.
For example, under 16-point addressing, channel 2 for a DI module in
slot 2 is referenced by TLP 101,33,3. Under 8-point addressing, channel
2 for a DI module in slot 2 is referenced by TLP 101,17,23. Table 1-4
illustrates the difference between 8-point and 16-point addressing.
Table 1-4. 16-Point vs. 8-Point Addressing
Slot Number
Logicals (16 pt)
Logicals (8 pt)
0
0–15
0–7
1
16–31
8–15
2
32–47
16–23
3
48–63
24–31
4
64–79
32–39
5
80–95
40–47
6
96–111
48–55
7
112–127
56–63
8
128–143
64–71
9
144–159
72–79
10
N/A
80–87
11
N/A
88–95
12
N/A
96–103
13
N/A
104–111
14
N/A
112–119