Honeywell CIPer 50 Installation and operation manual

® U.S. Registered Trademark
Copyright © 2020 Honeywell Inc. • All Rights Reserved
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CIPerTM MODEL 50 CONTROLLER
INSTALLATION & COMMISSIONING INSTRUCTIONS
DECEMBER 2020

CIPerTM MODEL 50 CONTROLLER –INSTALLATION AND COMMISSIONING INSTRUCTIONS
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2
Disclaimer
The material in this document is for information purposes only. The content and the product described are
subject to change without notice. Honeywell makes no representations or warranties with respect to this
document. In no event shall Honeywell be liable for technical or editorial omissions or mistakes in this
document, nor shall it be liable for any damages, direct or incidental, arising out of or related to the use of
this document. No part of this document may be reproduced in any form or by any means without prior
written permission from Honeywell.
Copyright © 2020 HONEYWELL International, Inc. All rights reserved.
Software License Advisory
This document supports software that is proprietary to Honeywell Building Technologies and/or to third
party software vendors. Before software delivery, the end user must execute a software license agreement
that governs software use. Software license agreement provisions include limiting use of the software to
equipment furnished, limiting copying, preserving confidentiality, and prohibiting transfer to a third party.
Disclosure, use, or reproduction beyond that permitted in the license agreement is prohibited.
Trademark Information
BACnet and ASHRAE are registered trademarks of American Society of Heating, Refrigerating and Air-
Conditioning Engineers. Microsoft and Windows are registered trademarks, and Windows Internet Explorer
are trademarks of Microsoft Corporation. Java and other Java-based names are trademarks of Sun
Microsystems Inc. and refer to Sun's family of Java-branded technologies. Mozilla and Firefox are trademarks
of the Mozilla Foundation. Echelon, LON, LonMark, LonTalk, and LonWorks are registered trademarks of
Echelon Corporation.
Tridium, JACE, Niagara Framework, NiagaraNX Framework, Sedona Framework and Vykon are registered
trademarks, and Workbench, WorkPlaceAX, and NXSupervisor, are trademarks of Tridium Inc. All other
product names and services mentioned in this publication that is known to be trademarks, registered
trademarks, or service marks are the property of their respective owners

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TABLE OF CONTENTS
Safety Information............................................................................................................................................. 6
General Safety Information ............................................................................................................................................................ 6
Information as per EN 60730....................................................................................................................................................... 6
WEEE Directive................................................................................................................................................... 7
Standards and Approvals................................................................................................................................ 7
Specifications of Controller............................................................................................................................ 7
System Overview ................................................................................................................................................ 8
Overview of Hardware ....................................................................................................................................................................... 8
System Architecture........................................................................................................................................10
Bus and Port Connections............................................................................................................................11
Overview.................................................................................................................................................................................................11
Legend..................................................................................................................................................................................................................12
RS232 / RJ45 Socket ......................................................................................................................................................................12
Configuring the RS232 Interface in WEBs N4..................................................................................................................................13
USB 2.0 Host Interface...................................................................................................................................................................13
USB 2.0 Device Interface...............................................................................................................................................................14
Ethernet / RJ45 Sockets................................................................................................................................................................14
Separated Networks.......................................................................................................................................................................................15
Switch Networks ..............................................................................................................................................................................................15
Default IP Addresses of Ethernet Interfaces 1 and 2 ....................................................................................................................17
LEDs ......................................................................................................................................................................................................................17
RS485 Interfaces...............................................................................................................................................................................17
RS485-2 Bias and Termination Resistors...........................................................................................................................................20
RS485 Standard ..............................................................................................................................................................................................20
Modbus Connection........................................................................................................................................................................21
Wiring Topology ...............................................................................................................................................................................................21
Cables ...................................................................................................................................................................................................................21
Shielding..............................................................................................................................................................................................................22
RS485 Repeaters.............................................................................................................................................................................................22
Modbus Master Specifications ................................................................................................................................................................22
Set Up and Configuration .............................................................................................................................23
Configuring Ports to Enable Webserver Functions.........................................................................................................26
Firmware Update..............................................................................................................................................28
Mounting and Dismounting.........................................................................................................................29
Dimensions ..........................................................................................................................................................................................29
Wiring and Set-Up ...........................................................................................................................................30
General Safety Considerations...................................................................................................................................................30
Fusing Specifications .....................................................................................................................................................................30
Lightning Protection .......................................................................................................................................................................30
Wiring Terminals................................................................................................................................................................................31

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Terminal Assignment ......................................................................................................................................................................31
Power Supply .......................................................................................................................................................................................33
Powering CIPer Model 50 ...........................................................................................................................................................................33
Transformer Data ............................................................................................................................................................................................34
Powering Panel Bus I/O Modules and Field Devices ....................................................................................................................35
Powering Field Devices and Panel Bus I/O Module via Separate Transformers..............................................................35
Powering Field Devices via Panel Bus I/O Module.........................................................................................................................35
WEB-EHSERIESNX26X Connection Examples.....................................................................................36
Internal I/Os of the CIPer Model 50 ........................................................................................................................................37
Universal Inputs...............................................................................................................................................................................................37
Slow Binary Input Specifications.............................................................................................................................................................39
Pulse Counter Specifications....................................................................................................................................................................39
Analog Outputs ................................................................................................................................................................................................40
Binary Inputs / Pulse Counters ................................................................................................................................................................40
Binary Outputs .................................................................................................................................................................................................42
Engineering and Commissioning ..............................................................................................................43
Required Preparations....................................................................................................................................................................43
Option 1: USB 2.0 Device (recommended) ..........................................................................................................................43
Option 2: Standard Ethernet Interface...................................................................................................................................43
Behavior of Outputs during Download ..................................................................................................................................43
Additional Parts................................................................................................................................................44
Software Licenses and Upgrades...............................................................................................................45
Panel Bus Connection....................................................................................................................................46
Overview of Panel Bus I/O Modules ........................................................................................................................................46
Panel Bus Considerations ............................................................................................................................................................46
Connecting CIPer Model 50 via its RS485-1 Interface to a Panel Bus .................................................................47
Connecting CIPer Model 50 via its RS485-2 Interface to a Panel Bus .................................................................48
Addressing Panel Bus I/O Modules.........................................................................................................................................49
Automatic Updating of Panel Bus I/O Module Firmware.............................................................................................49
Cable Specifications........................................................................................................................................................................50
Panel Bus I/O Modules ................................................................................................................................................................................50
EIA 485 Cable Specifications....................................................................................................................................................................50
Tuning Panel Bus Communication..........................................................................................................................................50
Field Devices........................................................................................................................................................................................52
Routing Cables to Field Devices ..............................................................................................................................................................52
LonWorks Communications.........................................................................................................................53
General Information.........................................................................................................................................................................53
Connecting to a LONWORKS Network ......................................................................................................................................53
Cable Types........................................................................................................................................................................................................53
IF-LON2...............................................................................................................................................................................................................53
BACnet MS/TP Bus Connection .................................................................................................................55
BACnet MS/TP Bus Considerations ........................................................................................................................................55

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Connecting CIPer Model 50 via RS485-1 Interface to a BACnet MS/TP Bus ...................................................55
Connecting CIPer Model 50 via RS485-2 Interface to a BACnet MS/TP Bus ...................................................57
Modbus Connection .......................................................................................................................................58
Modbus Considerations ................................................................................................................................................................58
Connecting CIPer Model 50 via RS485-1 Interface to a Modbus ...........................................................................58
Connecting CIPer Model 50 via RS485-2 Interface to a Modbus ...........................................................................59
M-Bus Connection ..........................................................................................................................................61
M-Bus Considerations....................................................................................................................................................................61
Bus Length.........................................................................................................................................................................................................61
Wiring Topology ...............................................................................................................................................................................................61
Cabling CIPer Model 50 to PW3/PW20/PW60................................................................................................................................61
Cabling PW3/PW20/PW60 to M-Bus ..................................................................................................................................................62
M-Bus Connection Procedure....................................................................................................................................................63
Controller Performance.................................................................................................................................66
Troubleshooting...............................................................................................................................................67
CIPer Model 50 Controller Troubleshooting.......................................................................................................................67
Power LED (green) of CIPer Model 50..................................................................................................................................................67
Status LED (red) of CIPer Model 50.......................................................................................................................................................67
L1 LED..................................................................................................................................................................................................................68
L2 LED..................................................................................................................................................................................................................68
Tx and Rx LEDs ................................................................................................................................................................................................69
Panel Bus I/O Module Troubleshooting ..............................................................................................................................................69
Appendix 1: Earth Grounding ......................................................................................................................70
CIPer Model 50 Systems and SELV .........................................................................................................................................70
CIPer Model 50 Systems and Standard EN60204-1 .....................................................................................................70
General Information.......................................................................................................................................................................................70
Earth Grounding of EN60204-1 Applicable Systems....................................................................................................70
Appendix 2..........................................................................................................................................................73
Sensor Input Accuracy....................................................................................................................................................................73
Recognition of Sensor Failure of Sensor Inputs................................................................................................................73
Sensor Characteristics ...................................................................................................................................................................74
NTC 20 kΩ(Type II) Temperature Characteristics ..........................................................................................................................74
NTC 10 kΩ(Type II) Temperature Characteristics...........................................................................................................................77
NI1000 TK6180 DIN B Temperature Characteristics....................................................................................................................79
NI1000 TK5000 DIN B Temperature Characteristics....................................................................................................................80
BALCO 500 Temperature Characteristics ..........................................................................................................................................81
PT1000 Temperature Characteristic (PT1000-1, PT1000-2) ..................................................................................................83
Index.....................................................................................................................................................................85

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SAFETY INFORMATION
General Safety Information
•When performing any work, all instructions given by the manufacturer and the safety instructions
provided in these Installation and Commissioning Instructions are to be observed. Make sure that the
local standards and regulations are always observed.
•The CIPer Model 50 System (including the CIPer Model 50 controller, Panel Bus I/O modules, manual
disconnect modules, and auxiliary terminal packages) may be installed and mounted only by authorized
and trained personnel.
•If the controller housing is damaged or missing, immediately disconnect it from any power.
•If the device is broken or defective, do not attempt to repair it yourself; rather, return it to the
manufacturer.
•It is recommended that devices be kept at room temperature for at least 24 hours before applying power.
This is to allow any condensation resulting from low shipping / storage temperatures to evaporate.
•The CIPer Model 50 System must be installed in such a manner (e.g., in a lockable cabinet) as to ensure
that uncertified persons have no access to the terminals.
•In the case of vertical mounting on DIN rails, the CIPer Model 50 controller should be secured in place
using a commercially available stopper.
•If the CIPer Model 50 System is modified in any way, except by the manufacturer, all warranties
concerning operation and safety are invalidated.
•Rules regarding electrostatic discharge should be followed.
•Use only accessory equipment which comes from or has been approved by Honeywell.
Information as per EN 60730
Purpose
The purpose of the device is operating control. the CIPer Model 50 controller is a multifunctional non-safety
control device intended for HVAC in home (residential, commercial, and light-industrial) environments.
Construction
The CIPer Model 50 controller is an independently mounted electronic control unit with fixed wiring.
Mounting Method
The CIPer Model 50 controller is suitable for mounting as follows:
•In cabinets;
•In fuse boxes conforming with standard DINX3880, and having a slot height of max. 1.77” (45 mm);
•In cabinet front doors (using accessory MVC-80-AC2);
•On walls (using accessory MVC-80-AC1).
Table 1. Information as per EN 60730
Shock protection
Class II
Pollution degree
2
Installation
Class 3
Rated impulse voltage
330 V for SELV, 2500 V for relay outputs
Automatic action
Type 1.C (micro-interruption for the relay outputs)
Software class
Class A
Ball-pressure test temperature
Housing parts >167 °F (75°C)
Terminals >257 °F (125°C)

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WEEE DIRECTIVE
WEEE: Waste Electrical and Electronic Equipment Directive
•At the end of the product life, dispose of the packaging and product in an appropriate
recycling center.
•Do not dispose of the device with the usual domestic refuse.
•Do not burn the device.
Standards and Approvals
Degree of Protection:
IP20 (mounted on walls, with two accessory MVC-80-AC1 covers)
IP30 (mounted in cabinet doors, with accessory MVC-80-AC2)
Device meets EN 60730-1, EN 60730-2-9, UL60730, and UL916.
Refer to Code of Practice standards IEC 61000-5-1 and -2 for guidance.
The device complies with Ethernet Protocol versions IEEEC 802.3.
The device supports BACnet IP and BACnet MS/TP communications as per ANSI / ASHRAE 135-2012
Specifications of Controller
Table 2. CIPer Model 50 specifications
Power supply
19 … 29 VAC, 50/60 Hz or
20 … 30 VDC
Power consumption
DC: 7 W (max 9 W)
AC: 10 VA (max 12 VA)
Heat dissipation
Max. 9 W at DC power supply
Max. 9 W at AC power supply
Current consumption
DC: 300 mA (max. 375 mA)
AC: 400 mA (max. 500 mA)
Ambient temperature
32 … 104 °F (0…40 °C) (wall-mounting)
32 … 122 °F (0…50 °C) (cabinet/door mounting)
Storage temperature
- 4 … +158 °F (-20…+70 °C)
Humidity
5 … 95% rh. non-condensing
Dimensions
See Figure 21 and Figure 22
Degree of protection
IP20 (mounted on walls, with two accessory MVC-80-AC1 covers)
IP30 (mounted in cabinet doors, with accessory MVC-80-AC2)
Fire class
V0
Weight
1.33 lb (0.6kg) excl. packaging

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System Overview
Overview of Hardware
Table 3. Overview of models (hardware)
Feature
Description
Max. cable
length
Order No
Without HMI
With HMI
WEB-
EHSERIESNX26ND
WEB-
EHSERIESNX26D
UI
NTC10kΩ(Type II) / NTC20kΩ(Type II) /
0…10V / slow BI, 0.4 Hz
1200 ft
(366 m)
8
8
NTC10kΩ(Type II) / NTC20kΩ(Type II) /
0…10V fix pull-up / slow BI, 0.4 Hz
1200 ft
(366 m)
2
2
BI
Open = 24 V / closed 2.0 mA / totalizer 15
Hz
1200 ft
(366 m)
4
4
AO
0..11 V (max. 1 mA)
1200 ft
(366 m)
4
4
BO
Relay N.O. contact: 3 A, 250 VAC, 30 VDC
1200 ft
(366 m)
4
4
Relay N.O. contact (high in-rush): 10 A,
250 VAC, 30 VDC
1200 ft
(366 m)
1
1
Relay N.O. contact with one common: 3 A,
250 VAC, 30 VDC
1200 ft
(366 m)
3
3
Total I/Os
--
26
26
Bus
interfaces
RS485-1, isolated, BACnet MS/TP, Panel
Bus, or Modbus RTU Master or Slave
communication
1)3600 ft
(1097 m)
1
1
RS485-2, non-isolated, BACnet MS/TP,
Panel Bus, or Modbus RTU Master or
Slave communication (NOTE: It is
imperative that the RS485-2 be powered
by a power supply having the proper
polarity. Failure to do so will make data
transmission impossible.)
1)3600 ft
(1097 m)
1
1
Ethernet Interfaces (e-mail
communication, browser access, BACnet
IP communication, Niagara Network,
Modbus TCP)
300 ft
(91.44 m)
2
2

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USB 2.0 Device Interface (as Network
Interface)
9 ft
(2.74 m)
1
1
USB 2.0 Host Interface (max. 200 mA)
9 ft
(2.74 m)
1
1
RS232 M-Bus communication via 45-feet
(15 m)-long PW3 / PW20 / PW60
converters
1)3000 ft
(914.4 m)
1
1
LEDs
Power LED (green)
--
1
1
Status LED (red; indicates an active alarm;
is controlled by Niagara Alarm System; is
configurable)
--
1
1
LED L1 (yellow; lit = Daemon starting;
flashing = station starting; if L2 is also
flashing, then the station has started)
--
1
1
LED L2 (yellow; lit = platform has started /
is reachable; flashing = station has started
/ is reachable)
--
1
1
Bus status LEDs (for isolated RS485-1
interface)
--
2
2
1) Depending upon bit rate. However, in the case of configuration of RS485-2 for Panel Bus, the communication
rate is set to 115.2 kbps, and the max. cable length is hence 2400 ft.

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System Architecture
A CIPer Model 50 System consists of the CIPer Model 50 controller and various Panel Bus I/O modules. The
CIPer Model 50 controller provides interface connections, which allow connection to external systems (e.g.,
BACnet controllers). Via the IF-LON External Interface, the CIPer Model 50 can also communicate with
LONWORKS systems, including Honeywell LONWORKS I/O Modules. For details about system architecture, refer
WEBs N4 System Architecture - 01-00074.
Auxiliary parts (see section Additional Parts, Pg 44) enable special features.
Figure 1: WEBs N4 extended Integrated Building Management architecture

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Bus and Port Connections
Overview
WARNING
Risk of electric shock or equipment damage
•Do not touch any live parts in the cabinet.
•Disconnect the power supply before making connections to or removing connections from
terminals of the CIPer Model 50 controller or Panel Bus I/O modules.
•Do not reconnect the power supply until you have completed installation.
•Due to the risk of short-circuiting (see Figure 24), it is strongly recommended that the CIPer Model
50 controller be supplied with power from a dedicated transformer. However, if the CIPer Model 50
controller is to be supplied by the same transformer powering other controllers or devices (e.g., the
PW M-Bus Adapter), care must be taken to ensure that correct polarity is observed.
•Observe the rules regarding electrostatic discharge.
Figure 2: Top view (with HMI and full complement of onboard I/Os)
Figure 3: Side view
24V-0
24V~
1
7 8
2
9
DO1
DO2 DO3
IN
IN4
DO4
DO5
IN5 IN6
DO6
DO7
IN7 IN8
DO8
GND
AO1
AO2 AO3
5678910 11 12 13 14 15 16 17 18 19 20 21 22
AO4
23
24 25 26 27 28 29 30 31 32
5 6
GND1
485-1+
485-1-
n.a. n.a.
GND2
485-2+
485-2-
n.a.
1 2 3 4
RS232
RS485-1
END BIAS MID
BI1
BI2 BI3
BI4
GND
UI1
UI2 UI3
UI4 UI5
UI6
UI7
33 34 35 36 37 38 39 40 41 42 43 44 45 46
UI8
47
UI9
UI10
2 1
1 2
END BIAS MID
4
3

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Legend
1. RS232 / RJ45 socket (for connection of M-Bus and other RS232-based protocols; factory
debugging)
2. Three-position slide switch (for setting bias and termination resistance of RS485-1)
3. Two Ethernet / RJ45 sockets (for BACnet IP communication); 10/100 Mbit/s; 1 "link" LED + 1
"activity" LED
4. USB 2.0 Host Interface (for connection of IF-LON2); max. 200 mA, high speed
5. RS485-1* (isolated; for BACnet MS/TP, Panel Bus, Modbus RTU communication, etc.)
6. RS485-2* (non-isolated; for BACnet MS/TP, Panel Bus, Modbus RTU communication, etc.)
7. LEDs
8. USB 2.0 Device Interface (for connection to WEBs N4 web browsers, and 3
rd
-party touch panels)
9. HMI (or RJ45 socket for connection of portable HMI)
*Modbus RTU Master/Slave communication is possible on the two RS485 interfaces.
WARNING
Risk of electric shock or equipment damage
It is prohibited to connect any of the RJ45 sockets of the CIPer Model 50 controller to a so-called PoE-
enabled device ("Power over Ethernet").
RS232 / RJ45 Socket
Via its RS232 / RJ45 socket, the CIPer Model 50 controller can be connected (using an TECHTOO USB 3.0
and YIOVVOM DB9 Breakout Connector) to a PW M-Bus Adapter and thus to M-Bus networks. See also
section "M-Bus Connection"
Figure 4: RS232 / RJ45 socket
END BIAS MID
RS232-RJ45 SOCKET

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Configuring the RS232 Interface in WEBs N4
When you configure the RS232 interface (for M-Bus) in WEBs N4, the corresponding Port Name will appear
as shown in Figure 5.
Figure 5: Configuring the RS232 Interface in WEBs N4
USB 2.0 Host Interface
Via its USB 2.0 Host interface, the CIPer Model 50 controller can be connected to, e.g., the IF-LON2 External
Interface Adapter and thus to LONWORKS networks. Max. 200 mA, high speed. See also section LonWorks
Communications.
Figure 6: USB 2.0 Host interface
END BIAS MID
USB 2.0 HOST INTERFACE

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USB 2.0 Device Interface
All models of the CIPer Model 50 controller are equipped with a USB 2.0 Device Interface at the front. This
interface is for connection to WEBs N4 and web browsers, or 3rd-party touch panels.
Figure 7: USB 2.0 Device Interface
A standard USB type-B connector can be inserted into this USB 2.0 Device Interface. This USB 2.0 Device
Interface is the recommended interface for connection to WEBs N4.
Ethernet / RJ45 Sockets
The CIPer Model 50 controller is equipped with two Ethernet / RJ45 sockets, each featuring two LEDs.
Figure 8: Ethernet / RJ45 sockets
The two Ethernet / RJ45 sockets are 10/100-Mbit/s Ethernet interfaces permitting communication (as per
IEEEC 802.3) on any supported IP network, e.g.: BACnet (IP), FOX, etc.
END BIAS MID
ETHERNET / RJ45 SOCKETS
INTER-
FACE 2
INTER-
FACE 1

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Figure 9: Ethernet / RJ45 sockets
NOTE
The Ethernet / RJ45 sockets are usually earth-grounded. For additional information, see also "Appendix 1:
EARTH GROUNDING"
The two Ethernet interfaces can be used in either of two different ways (the corresponding configuration is done
in WEBs N4):
•"Separated networks" (factory default).
•"Switch functionality."
See also the following two sections.
Separated Networks
The "separated networks" scenario is the factory default. In this scenario, each of the two Ethernet interfaces must
be activated and located in a different subnet.
Switch Networks
In this scenario, one of the two Ethernet interfaces is deactivated (using WEBs N4 –see section "Disabling an
Ethernet Interface" below). The deactivated Ethernet interface will now function in the loop-through (daisy-chain)
mode and can therefore be used to continue the data line.
The following limitations apply:
1. Only daisy-chain configurations are allowed
2. A maximum of five Ethernet-capable devices (including CIPer Model 50 controller) are allowed
(failure to observe this limitation will result in signal delays and will grade data transmission).
3. The maximum distance between any two of the Ethernet-capable devices in the daisy chain is 328 ft
(100 meters).
4. Connect the devices using CAT5 cable or better.
LEFT (GREEN) LED
LIT CONTINUOUSLY = LINK ACTIVE
LINK INACTIVE
""
DARK = " "
RIGHT (YELLOW) LED
LIT CONTINUOUSLY = "100 Mbaud"
DARK = "10 Mbaud"
INTER-
FACE 2
INTER-
FACE 1

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Figure 10: Allowed Ethernet wiring topology (“Switch functionality”)
NOTE
During any power failure of the CIPer Model 50, the switching functionality is inoperative.
Figure 11: Entering gateway address, disabling one of the two Ethernet interfaces in WEBs N4
WEB-EHSERIES
NX #1
max. 100 m
WEB-EHSERIESNX #2 WEB-EHSERIESNX #3
TO ACTIVATED
ETHERNET SOCKET
OF DEVICE #4
TO DEACTIVATED
ETHERNET SOCKET
OF DEVICE #1
max. 100 m
max. 100 m max. 100 m
SWITCH FUNCTIONALITY
max. 100 m max. 100 mmax. 100 m
CAT5
CABLE
WEB-EHSERIES
NX #2 WEB-EHSERIES
NX #4
WEB-EHSERIES
NX #3 WEB-EHSERIES
NX #5
ETHERNET/RJ45 SOCKET #2
DEACTIVATED ETHERNET/RJ45 SOCKET #2
DEACTIVATED

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To ensure that the discovery of devices, datapoints, schedules, and histories does not fail, you should enter a
gateway address. If there is no gateway address physically given by the Network Setting, then enter a gateway
address that relates to the IP address of the enabled Ethernet Interface. In Figure 11 the gateway address is
192.168.1.1, hence the IP address of Ethernet adapter 1 must be in the range of 192.168.1.2 to
192.168.1.255.
Default IP Addresses of Ethernet Interfaces 1 and 2
In any case, the default IP address of Ethernet interface 1 is: 192.168.200.20, mask 255.255.255.0
and the default IP address of Ethernet interface 2 is:192.168.201.20, mask 255.255.255.0
LEDs
The CIPer Model 50 controller features the following LEDs:
Figure 12: CIPer Model 50 controller LEDs
Table 4. CIPer Model 50 controller LEDs
Symbol
Color
Function Description
L1
Yellow
Lit = Daemon starting; flashing = station starting; if L2 is also flashing, then the
station has started.
L2
Yellow
Lit = platform has started / is reachable; flashing = station has started / is
reachable.
Tx
Yellow
RS485-1 status LED indicating transmission of communication signals.
Rx
Yellow
RS485-1 status LED indicating reception of communication signals.
Red
Indicates an active alarm; is controlled by WEBs- Alarm System; is configurable.
Green
Power LED.
See also section "CIPer Model 50 Controller Troubleshooting, Pg. 67 for a detailed description of the
behaviors of the LEDs and their meanings.
RS485 Interfaces
General
The CIPer Model 50 controller features two RS485 interfaces:
RS485-1 (consisting of push-in terminals 24 [GND-1], 25, and 26) is isolated and can be used for any
RS485-based communication protocol available within WEBs- Ecosystems, E.g: Panel Bus, BACnet MS/TP,
etc.
RS485-2 (consisting of push-in terminals 29, 30, and 31 [GND-2]) is non-isolated (i.e. GND-2 is internally
connected with terminal 1 [24V~0]) and can be used for any RS485-based communication protocol available
within WEBs- Ecosystems, e.g.: Panel Bus, BACnet MS/TP, etc.
NOTE
It is imperative that the RS485-2 be powered by a power supply having the proper polarity. Failure to do so
will make data transmission impossible.
L1 L2 Tx Rx !
!

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Configuring the RS485 Interfaces in WEBs N4
When you configure the two RS485 interfaces (for Modbus, BACnet MS/TP, or Panel Bus) in WEBs N4, the
corresponding Port Names will appear as shown in Figure 13.
Figure 13: Configuring the RS485 interfaces in WEBs N4
RS485-1 Bias and Termination Resistors
RS485-1 is equipped with a three-position slide switch which can be used to switch its bias resistors OFF
(position "MID" –this is the default), ON (position "BIAS"), and ON with an additional 150Ωtermination
resistor (position "END").
Figure 14: RS485-1 three-position slide switch
The recommended slide switch setting depends upon the location and usage of the given CIPer Model 50 –
see Figure 15 through Figure 17 and Table 5; it also depends upon the selected communication protocol
(BACnet MS/TP, Panel Bus, or Modbus RTU Master communication, respectively).
Table 5. Recommended slide switch settings
Setting
Remarks
END
Controllers located on either end of bus should have this setting.
BIAS
In small bus networks, a min. of one and a max. of two controllers should have this
setting.
MID
All other controllers (not set to "END" or "BIAS") on bus should have this setting
(which is the default).
END BIAS MID
END BIAS
MID
RS485-1
3-POSITION SLIDE SWITCH

CIPerTM MODEL 50 CONTROLLER –INSTALLATION AND COMMISSIONING INSTRUCTIONS
19
31-00233-02
Figure 15: RS485-1 three-position slide switch setting MID
Figure 16: RS485-1 three-position slide switch setting BIAS
Figure 17: RS485-1 three-position slide switch setting END
NOTE
•All terminals are protected (up to 24 VAC) against short-circuiting and incorrect wiring –
except when the 3-position slide switch is set to "END," in which case the terminals of the
RS485-1 bus (24, 25, and 26) have no such protection. Higher voltages may damage the
device.
•According to BACnet standards, a minimum of one and a maximum of two BACnet devices
must have its/their bias resistors switched ON. In the case of the RS485-1 interface of the
CIPer Model 50, setting its slide switch to either "BIAS" or "END" fulfills this requirement.
47 kOHM
47 kOHM
+5VISO
GND-1
RS485-1 (+)
RS485-1 (-)
25
26
MID (DEFAULT)
END
BIAS
MID
550 OHM
550 OHM
+5VISO
GND-1
RS485-1 (+)
RS485-1 (-)
25
26
BIAS
END
BIAS
MID
550 OHM
150 OHM
550 OHM
+5VISO
GND-1
RS485-1 (+)
RS485-1 (-)
25
26
END
END
BIAS
MID

CIPerTM MODEL 50 CONTROLLER –INSTALLATION AND COMMISSIONING INSTRUCTIONS
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RS485-2 Bias and Termination Resistors
The RS485-2 interface is not affected by the aforementioned three-position slide switch. The 550Ωbias
resistors and 130Ωtermination resistor of the RS485-2 are thus always ON.
Figure 18: RS485-2 bias and termination resistors
NOTE
GND-2 is internally connected with 24V-0 (terminal 1)
RS485 Standard
According to the RS485 standard (TIA/EIA-485: "Electrical Characteristics of Generators and Receivers for
Use in Balanced Digital Multipoint Systems"), only one driver communicating via an RS485 interface may
transmit data at a time. Further, according to U.L. requirements, each RS485 interface may be loaded with a
max. of 32-unit loads. E.g., WEBs devices have as little as ¼ unit load each, so that up to 128 devices can be
connected
BACnet MS/TP connections to the RS485 interfaces must comply with the aforementioned RS485 standard.
Thus, it is recommended that each end of every connection be equipped with one termination resistor having
a resistance equal to the cable impedance (120 Ω/ 0.25 –0.5 W).
RS485 systems frequently lack a separate signal ground wire. However, the laws of physics still require that a
solid ground connection be provided for in order to ensure error-free communication between drivers and
receivers –unless all of the devices are electrically isolated, and no earth grounding exists.
IMPORTANT
In the case of new CIPer Model 50 controller installations, we strongly recommend using a
separate signal ground wire. Doing otherwise may possibly lead to unpredictable behavior if
other electrically non-isolated devices are connected and the potential difference is too high. In
the case of the installation of CIPer Model 50 controllers in already-existent RS485 two-wire
systems (e.g., when replacing Spyder and Stryker controllers with CIPer Model 50 controllers),
not using a separate signal ground wire will probably have no undesirable effects.
The cable length affects the communication rate. Table 6 provides a few examples.
Table 6. Bit rate vs. max. cable length for RS485
Bit rate
Max. cable length (L)
9.6 - 76.8 kbps
3600 ft (1200 m)
*115.2 kbps
2400 ft (800 m)
* In the case of configuration of RS485-2 for Panel Bus, the communication rate
is set to 115.2 kbps.
For information on wire gauge, max. permissible cable length, possible shielding and grounding
requirements, and the max. number of devices which can be connected to a bus, refer to standard EIA-485.
550 OHM
130 OHM
550 OHM
+5V
GND-2
RS485-2 (+)
RS485-2 (-)
30
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