YOKOGAWA ROTAMETER RAMC User manual

User´s
Manual
Yo kogawa Electric Corporation
IM 01R01B02-01E-E
©Copyright 2006 (RYG)
5th edition, October 2020 (RYG)
ROTA METER RAMC
Variable Area Flowmeter
PROFIBUS PA Communication Type
Rota Yokogawa GmbH & Co. KG
Rheinstr. 8
D-79664 Wehr
Germany
IM 01R01B02-01E-E, supplementary instructions to standard RAMC User´s Manual IM 01R01B02-00E-E

Contents
1. Introduction.........................................................................................1-1
1.1 Target group ......................................................................................................1-1
1.2 Applicable documents .....................................................................................1-1
1.3 General items....................................................................................................1-1
2. About PROFIBUS PA..........................................................................2-1
2.1 Outline..............................................................................................................2-1
2.2 Internal Structure of RAMC PROFIBUS PA ..................................................2-1
2.3 Logical Device Structure................................................................................2-1
3. Installation ..........................................................................................3-1
3.1 Wiring System Conguration.........................................................................3-1
3.2 Connection of Devices...................................................................................3-1
4. Start of Operation ..............................................................................4-1
4.1 Integration of GSD ..........................................................................................4-1
4.2 Important Device Settings ............................................................................4-1
4.3 Cyclic Data Exchange.....................................................................................4-2
4.4 Setting of Write Protection.............................................................................4-2
4.5 Using the Keys................................................................................................4-2
4.6 Menu Structure................................................................................................4-3
5. Block Setting ......................................................................................5-1
5.1 Parameters and Initial Settings .....................................................................5-1
5.2 Physical Block (PB) Parameters....................................................................5-1
5.3 Analog Input (AI) Block Parameters .............................................................5-2
5.4 Transducer Block (TB) Parameters ...............................................................5-3
6. Status and Diagnostic Information ..................................................6-1
6.1 Status description...........................................................................................6-1
6.2 Diagnostics......................................................................................................6-3
6.3 Status impacts of Alarm settings..................................................................6-4
<1CONTENTS> i
All Rights Reserved. Copyright © 2006, Rota Yokogawa IM 01R01B02-01E-E 5th edition October 01, 2020 -00

7. Explosion Protected Type Instruments ............................................7-1
7.1 Intrinsically Safe ATEX and IECEx certied electronic transmitter (/KS1, .....
/ES1) .................................................................................................................7-1
7.1.1 Technical data..........................................................................................................7-1
7.1.2 Marking ....................................................................................................................7-2
7.1.3 Installation ...............................................................................................................7-3
8. Service ................................................................................................8-1
Appendix 1. List of Parameters for each Block of RAMC................. A-1
A1.1 Physical Block.............................................................................................. A-1
A1.2 Al Function Block ........................................................................................ A-4
A1.3 Transducer Block ......................................................................................... A-7
Appendix 2. Application, Setting and Change of basic Parameters......
................................................................................................................ A-11
A2.1 Applications and Selection of Basic Parameters .................................. A-11
A2.2 Setting and Change of Basic Parameters .............................................. A-12
A2.3 Setting the AI Function Blocks ................................................................ A-13
<CONTENTS>
ii
All Rights Reserved. Copyright © 2006, Rota Yokogawa
IM 01R01B02-01E-E 5th edition October 01, 2020-00

4. INTRODUCTION 1-1
All Rights Reserved. Copyright © 2006, Rota Yokogawa IM 01R01B02-01E-E 5th edition October 01, 2020 -00
1. Introduction
1.1 Target group
The following persons are the target group of this manual:
• Technicians
• Engineers
This manual along with its applicable documents enable the target group to complete the following steps:
• Installation
• Commissioning
• Conguration (parametrization)
• Integration of the ow meter into a process control system
• Troubleshooting
• Maintenance and repair
1.2 Applicable documents
The following documents supplement this manual:
• User´s Manual (IM) IM01R01B02-00-E
• General Specications (GS) GS01R01B02-00E-E
1.3 General items
This manual is additional to IM01R01B02-00-E.
For safety instructions and warranty please see chapter 1 of IM01R01B02-00-E.
This manual contains a description of the RAMC Metal Rotameter with PROFIBUS PA Communication
Type. PROFIBUS PA communication type is similar to the HART communication type in terms of basic
performance and operation.
This manual describes only those topics that are required for operation of the PROFIBUS PA
communication type and that are not contained in IM01R01B02-00-E.
Before use, read this manual thoroughly and familiarize yourself fully with the features, operations and
handling of Rotameter RAMC to have the instrument deliver its full capabilities and to ensure its efficient
and correct use.

2. ABOUT PROFIBUS PA 2-1
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2. About PROFIBUS PA
2.1 Outline
PROFIBUS is a registered trademark of PROFIBUS Nutzerorganisation e.V., Karlsruhe, Germany.
PROFIBUS is a manufacturer-independent and open eldbus communication protocol based on the interna-
tional standards IEC 61158 and IEC 61784. It covers a wide range of applications in manufacturing and
process control systems. Probus PA is a bi-directional digital communication protocol for eld devices, which
offers an advancement in implementation technologies for process control systems and is widely employed
by numerous eld devices.
RAMC PROFIBUS communication type employs the specication standardized by the PNO, and provides
interoperability between Yokogawa devices and those produced by other manufacturers.
2.2 Internal Structure of RAMC PROFIBUS PA
RAMC contains three function blocks which are implemented in accordance with Prole 3.02.
(1) Physical block
• Manages the status of RAMC hardware.
• Automatically informs the host of any detected faults or other problems.
(2) Transducer block
• Converts sensor output to ow rate signal and transfers to AI function block.
(3) AI function block
• Conditions raw data from the Transducer block.
• Outputs ow rate signals.
• Carries out scaling extraction.
2.3 Logical Device Structure
Figure 2.1 Logical Device Structure
Device Management
Physical Block
Transducer
Block
AI Function
Block
Sensor
Output
RAMC PROFIBUS PA
Sensor
output

3. INSTALLATION 3-1
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3.1 Wiring System Conguration
The number of devices that can be connected to a single bus and the cable length vary depending on
system design. When constructing systems, both the basic and overall design must be carefully considered
to allow device performance to be fully exhibited.
3.2 Connection of Devices
The following instruments are required for use with PROFIBUS PA devices:
• Terminator:
PROFIBUS PA requires two terminators at the end of the segment
•SegmentCoupler:
PROFIBUS PA requires the segment coupler which adopts to the RS-485 signals to the IEC 61158-2
signal level.
• Fielddevices:
Connect RAMC PROFIBUS PA communication type. Two or more RAMC devices or other devices can
be connected.
• Master:
Used for accessing eld devices. A dedicated master (such as DCS or PLC) is used for an instrumentation
line while dedicated communication tools are used for experimental purposes. For operation of the
master, refer to the instruction manual for each master. No details of the master are explained in the
rest of this manual.
• Cable:
NOTE
The PROFIBUS specication must be regarded.
Two-core twisted and shielded cables are recommended, otherwise the EMC-requirements for
industrial ow meters can not be guaranteed.
EN 50170 species two types of bus cables. For transmission rates up to 1.5 Mbit/s, cable type A is
recommended.
3. Installation
Figure 3.1 Device Connection
+
–
+
–
Field Instrument
Field Instrument
Te rminator
RAMC--P429
PROFIBUS PA
PROFIBUS DP
Segment
coupler
Grounding:
1) Device
2) Cable shield on bus side
3) Cable shield on transmitter side recommended
3)2)
1)
It is recommended to connect the shield on both
sides to ground. Compensation currents on ground
lines must be avoided. Therefore the shield may be
connected to ground on one side (e.g. in control
cubicle) via capacitor to ground.
The potential equalization must be connected
to the ow meter.
If the shield is only connected on supply side,
reduction of EMC immunity is possible.
NOTE
In case of insufficient cable shielding and
grounding, degrading of EMC immunity is
possible.

3 INSTALLATION
3-2
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IM 01R01B02-01E-E 5th edition October 01, 2020-00
ConnectionassignmentinRAMChousing:
Connect the cable conductors of the eldbus cable to the eldbus terminals 2 and 3.
3 2 1
Figure 3.2 Connector at transmitter
Figure 3.3 RAMC PA Overview
CAUTION
•If the eldbus device is operated at ambient temperatures above +50 °C, the supply voltage of the device
must be above 9.5 V.
•For installation in hazardous area chapter 7 must be regarded.
Operation keys
Calibration-EEPROM
Electronic transmitter
LC-display
Cable gland
Connector acc. figure 3.2
Profibus Label

4. START OF OPERATION 4-1
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4.1 Integration of GSD
PROFIBUS PA system requires GSD le which describes the device parameters such as the transmission
rate supported, input, output data, data format and data length.
The GSD les described below are available to RAMC.
You can download the GSD le from http://www.probus.com/products/gsd-les/.
Table 4.1 GSD les
GSD le name Ident. Number Comment
PA139700.GSD (AIx1) 0x9700 Prole specic
RY014582.GSD 0x4582 Device specic
4.2 Important Device Settings
The tables below show items (parameters) which need special care to ensures a proper working of the
RAMC Probus type.
Table 4.1 General settings
Item Settings
Bus address Set to 0x7E (126) by default unless otherwise specied when ordered
In case of unit change (compared to initial ordering) it is recommended to change the OUT_SCALE parameter
as described in table 4.3 only. Change of the Process Variable needs in addition the changes described in
the tables 4.2 and 4.3.
Table 4.2 Initial settings of Transducer Block
Item Settings for Volume ow Settings for Mass ow
Parameter: VOLUME_FLOW_UNITS Choose unit (initially set to unit specied
when ordered)
Not active 1("Volume ow passivated")
Parameter: MASS_FLOW_UNITS Not active 1 ("Mass ow passivated") Choose unit (initially set to unit specied
when ordered)
NOTE
Change of the parameters VOLUME_FLOW_UNITS to MASS_FLOW_UNITS or vice versa needs in
addition the adaptation of the parameter CHANNEL inside the AI block, to make the change effective on
the OUT parameter.
Table 4.3 Initial settings of AI Function Block
Item Settings for Volume ow Settings for Mass ow
Parameter: PV_SCALE
Sub-parameter: Array 1
Set upper range limit (set to scale upper range as specied when ordered)
Parameter: PV_SCALE
Sub-parameter: Array 2
Set lower range limit (set to scale lower range as specied when ordered)
Parameter: OUT_SCALE
Sub-parameter: Units_Index
Choose unit (set to unit specied when ordered)
Parameter: OUT_SCALE
Sub-parameter: EU_at_100%
Set upper range limit (set to scale upper range as specied when ordered)
Parameter: OUT_SCALE
Sub-parameter: EU_at_0%
Set lower range limit (set to scale lower range as specied when ordered)
Parameter: CHANNEL 0x0111 (273) 0x0115 (277)
4. Start of Operation

4. START OF OPERATION
4-2
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IM 01R01B02-01E-E 5th edition October 01, 2020-00
4.3 Cyclic Data Exchange
The RAMC is preset in factory and should work after integration into the system. In case of parameter
adjustment the items described in former section need special care to ensure cyclic data exchange.
The OUT parameter transfers Value and Status of the device.
NOTE
The parameters OUT_SCALE and PV_SCALE need reconguration in case of:
• Factory Reset
• Unit change of the Process Variable (PV)
4.4 Setting of Write Protection
A write protection is a function to forbid changing of parameters. It is possible to set the software write
protection by the Physical Block parameter WRITE_LOCKING. When WRITE_LOCKING is "0: Lock", the
status of write protect becomes protected mode. When WRITE_LOCKING is "2457: Disabled", the status
becomes unprotected mode.
4.5 Using the Keys
In PA devices there is no local operating menu available.
Pressing the "arrow up" button the indication can be changed between ow, totalizer and temperature.
Factory default is totalizer.
Pressing the "arrow right" button an error indication appears on display.
• 00000000 or
• 00000000
A detailed explanation see chapter 6.

4. START OF OPERATION 4-3
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4.6 Menu Structure
Within this chapter the EDD and DTM labels of the menu structures are shown. The labels are also
indicated in the parameters description in Appendix 1.
Offlinestructure:
Device Physical Block Block Conguration Static Revision No.
TAG
Strategy
Alert Key
Target Mode
Actual Mode
Block Object
Parent Class
Class
Device Revision
Device Revision Compatibility
Prole
Prole Revision
No. of Parameters
Current State Alarm Sum
Device Identication Manufacturer
Device Id
Device Serial Num
Software Revision
Hardware Revision
Electr. Serial No.
Device Features FEATURE_Supported
FEATURE_Enabled
Device Settings Write Locking
Descriptor
Message
Installation Date
Ident Number Selector
Device Diagnosis Diagnosis Mask
Diagnosis
Device Diagnosis
Extension Diagnosis Extension Mask
Diagnosis Extension
Diagnosis/Status
Conguration Condensed Status/Diagnosis
Serial Communication Failure Diagnosis Mapping:
Status Mapping: