Emerson PACSystems VersaMax IC200BEM002 User manual

IMPORTANT PRODUCT INFORMATION
GFK-1538H
Nov 2019
PACSystemsTM VersaMax
PROFIBUS NETWORK SLAVE MODULE
(IC200BEM002)

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Warning Notes as Used in this Publication
Warning
Warning notices are used in this publication to emphasize that hazardous voltages, currents,
temperatures, or other conditions that could cause personal injury exist in this equipment or
may be associated with its use.
In situations where inattention could cause either personal injury or damage to equipment, a
Warning notice is used.
Notes: Notes merely call attention to information that is especially significant to understanding and operating the equipment.
These instructions do not purport to cover all details or variations in equipment, nor to provide for every possible
contingency to be met during installation, operation, and maintenance. The information is supplied for informational
purposes only, and Emerson makes no warranty as to the accuracy of the information included herein. Changes,
modifications, and/or improvements to equipment and specifications are made periodically and these changes may or
may not be reflected herein. It is understood that Emerson may make changes, modifications, or improvements to the
equipment referenced herein or to the document itself at any time. This document is intended for trained personnel
familiar with the Emerson products referenced herein.
Emerson may have patents or pending patent applications covering subject matter in this document. The furnishing of
this document does not provide any license whatsoever to any of these patents.
Emerson provides the following document and the information included therein as-is and without warranty of any kind,
expressed or implied, including but not limited to any implied statutory warranty of merchantability or fitness for
particular purpose.

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Product Description
Product Version
IC200BEM002-PA
Firmware version:
1.00
Firmware upgrades:
The Network Slave Module (NSM) firmware resides in FLASH memory. This firmware may be upgraded
with future versions via serial download from an appropriate personal computer connected to the
serial port of the headend device.
Specifications
Profibus network address
1 to 125. Software-configurable
Profibus network data rate
9.6Kbaud to 12Mbaud, auto-detected
I/O data
384 bytes maximum. Up to 244 bytes of inputs or 244 bytes of outputs.
Indicators (2)
OK LED indicates health of the NSM
Com LED indicates communications status.
Power Consumption
+5V@350mA
Preinstallation Check
Carefully inspect all shipping containers for damage. If any equipment is damaged, notify the delivery service
immediately. Save the damaged shipping container for inspection by the delivery service. After unpacking the
equipment, record all serial numbers. Save the shipping containers and packing material in case it is necessary to
transport or ship any part of the system.
Installation in Hazardous Locations
•This equipment is suitable for use in CLASS I, DIVISION 2, GROUPS A, B, C, D or non-hazardous locations only.
WARNING
•EXPLOSION HAZARD - substitution of components may impair suitability for CLASS I, DIVISION 2;
•EXPLOSION HAZARD - when in hazardous locations, turn off power before replacing or wiring modules; and
•EXPLOSION HAZARD - Do not connect or disconnect equipment unless power has been switched off or the area is
known to be non-hazardous.
Quick Start Guide
1. Install the Communications Carrier on the DIN Rail by simply clicking it into place.
Note: Connecting carriers must be installed on the same section of 35mm x 7.5mm DIN rail.
The DIN rail must have a conductive (unpainted) finish for proper grounding.
(Refer to the heading Module Installation for information about space requirements or module
orientation, or if you are installing the NSM in an area of excessive vibration).
2. Install the Module on the Communications Carrier.
The latch on the module must be in the unlocked position.
Align the connectors and the latch post and press the NSM down until the two tabs on the bottom of
the NSM click into place.
Turn the latch to the locked position to secure the NSM to the top of the carrier.

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3. Connect the communications bus to the connector on the front of the Network Slave Module. (Refer to the
heading Bus Installation Guidelines for detailed bus installation instructions.)
4. Remove the connector cover on the right-hand side of the Communications Carrier. Do not discard this cover;
you will need to install it on the last carrier. It protects the connector pins from damage and ESD during handling
and use. Do not remove the connector cover on the left-hand side.
Connector Cover
Connector Cover
5. Install additional modules by mounting modules on their carriers and sliding them along the DIN rail to fully
engage the connectors in the sides of the carriers.
6. Power up the System, and Observe the Module LEDs. The LEDs indicate the presence of power and show the
operating mode and status of the NSM.
OK
COM
OK Green indicates the NSM has completed powerup diagnostics and is successfully communicating over the
PLC backplane.
Blinking green indicates that the NSM is in boot mode or its firmware is being updated.
Amber when the NSM has detected a fault, is not communicating over the PLC backplane, or has received
an invalid configuration.
Blinking amber means the NSM has either detected a fault, is not communicating over the PLC backplane,
or has received an invalid configuration.
OFF when the NSM is not receiving power.
COM Green indicates the NSM is online and in network data transfer state.
Blinking green indicates that the NSM is in network data transfer state but not exchanging
communications with the CPU (CPU is stopped).
Amber when the NSM is communicating on the Profibus network but its configuration does not match the
Profibus master.
Blinking amber means the NSM has rejected the configuration from the CPU, or the configuration contains
no network I/O specifications (eg. the default configuration).
OFF when the NSM is offline and has not yet received its configuration from the CPU.

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Bus Installation Guidelines
The proper cable for a Profibus network is a shielded twisted pair cable. Profibus cable is sold as "Profibus Network
Cable". The twisted pair cable consists of a Green and a Red wire. Below are some of the cable characteristics of Profibus
cable.
Network Topology
Linear bus, terminated at both ends. Stubs possible.
Medium
Shielded twisted pair cable. Shielding may be omitted, depending on the environment.
Number of Stations
32 stations in every segment without repeaters. With repeaters, extendible up to 127.
Transmission Speed
9.6, 19.2, 93.75, 187.5, 500, 1500 Kbits, 3 Mbits, 6 Mbits, 12 Mbits.
Connector
9-pin D-sub connector
Cable Type
Profibus DP
Impedance
135 to 165 Ohms (3 to 20 MHz)
Capacity
< 30 pF per meter
Resistance
< 110 Ohms per Kilometer
Wire Gauge
> 0.64 mm
Conductor Area
> 0.34 mm2
Bus Length
The maximum bus length using shielded, twisted-pair cable for a single network segment is 1200 meters. Total network
length may be increased with the use of repeaters, up to a maximum of 3 repeaters per network. Other cable types may
be restricted to shorter bus lengths. The maximum bus length also depends on the data rate, as shown in the following
table.
Maximum Bus Length in Meters
Kbits per Second
1,200
9.6
1,200
19.2
1,200
93.75
600
187.5
400
500
200
1,500
100
3,000; 6,000; 12,000
Often, it is the required bus length that determines the data rate.
For data rates up to 500 kbits/second, follow the stub recommendations of Profibus Part 1. At 1500 kbits/second the
overall drop capacity should be less than 0.2nF. The maximum length of the stub at 1500 kbits/second is 6.6 meters.
Cable shielding is recommended at higher baud rates, to maintain communications integrity in the industrial
environment.

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Bus Connectors and Termination
The Network Slave Module provides the Profibus standard female 9-pin D subminiature connectors. Cable connectors
are available from most fieldbus parts distributors as "Profibus 9-pin D connectors". These connectors provide
termination resistors and a switch on the connector to enable/disable termination. Connectors with and without
termination are also available. The connectors label the connections for the twisted pair as cable A and cable B. The
following table illustrates the proper assignment of wire to connector to pin to signal.
Wire Color
Connector
Pin
Signal
Red
B
3
RxD/TxD-P
5
DGND
6
VP
Green
A
8
RxD/TxD-N
Termination resistors are needed, as defined in Profibus Specification DIN 19245 Part 1 section 3.1.2.5.
Master
Slave
Slave
Slave
Slave
Slave
Termination Required
(Segment 1)
One terminator must be applied at each end of a network segment.
Master
Slave
Slave
Slave
Slave
Slave
Repeater
Termination Required
(Segment 1)
Termination Required
(Segment 2)
Important:For proper network termination, the terminating devices must provide and maintain power. Power is
provided by the device on Pin 6 and Ground is provided on Pin 5. If power is lost to either terminating device, the network
may not operate correctly. Generally, the network master device is one of the terminating devices. The other
terminating device may be a critical slave device or a separately powered, stand-alone terminator.
VP (6)
RxD/TxD-P (3)
RxD/TxD-N (8)
DGND (5)
Ru = 390 Ohms
Rt = 220 Ohms
Rd = 390 Ohms
In addition to the termination shown above, the following compensation should be added for 12 Mbit bus technology:
To/from
another
node
110nH
110nH
To/from
another
node
110nH
110nH
5
4
3
2
1
9
8
7
6
Bus Grounding
Generally, it is only necessary to ensure that the cable shields are attached to ground. In most cable connectors, the
shield is attached to the metal housing of the conductor on the cable side and this is brought to ground by the metal
connector on the NIU.
In some installations with large networks or higher data rates, large ground potentials (greater than ±7V) may arise. In
these cases, it may be necessary to ensure all Profibus devices are attached to the same Protective Earth ground.

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RxD/TxD-P (3)
DGND (5)
VP (6)
RxD/TxD-N (8)
RxD/TxD-P (3)
DGND (5)
VP (6)
RxD/TxD-N (8)
Red (B)
Green (A)
Operating Notes/Restrictions
This module may not be hot-inserted into a system or I/O station.
Product Revision History
Revision
Date
Description
IC200BEM002-PA
NOV 2019
Following Emerson’s acquisition of this product, changes have been made to apply
appropriate branding and registration of the product with required certification agencies.
No changes to material, process, form, fit or functionality.
IC200BEM002-NA
Oct 2016
EU RoHS compliant module per directive 2011/65/EU dated 8-June-2011. No changes to
features, performance or compatibility.
IC200BEM002-MA
Feb 2012
Label change. No changes to features, performance or compatibility.
IC200BEM002-LA
Mar 2011
IC200BEM002-KA
Mar 2010
Changed manufacturing location. No changes to compatibility, functionality or
performance.
IC200BEM002-JA
Oct 2008
Updated Power Supply OK signal circuitry.
IC200BEM002-HA
Apr 2005
Plastic change on locking mechanism
IC200BEM002-FA
Apr 2004
Changed to V0 plastic for module housing.
IC200BEM002-EA
Jan 2004
Increased noise immunity.
IC200BEM002-DA
Jan 2004
ATEX approval for Group 2 Category 3 applications.
IC200BEM002-CA
Oct 2001
Hardware change to improve powerup with certain masters.
IC200BEM002-BA
Dec 1999
Additional agency approvals.
IC200BEM002-AA
Mar 1999
Initial product release

IMPORTANT PRODUCT INFORMATION
GFK-1538H
Nov 2019
Technical Support & Contact Information:
Home link: http://www.Emerson.com/Industrial-Automation-Controls
Knowledge Base: https://www.emerson.com/Industrial-Automation-Controls/support
Note: If the product is purchased through an Authorized Channel Partner, please contact the seller directly for any support.
Emerson reserves the right to modify or improve the designs or specifications of the products mentioned in this manual at any time without notice.
Emerson does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and
maintenance of any Emerson product remains solely with the purchaser.
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