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E-112073-0001 Datasheet(PDF) 2 Page - Molex Electronics Ltd.

Part No. E-112073-0001
Description  BradCommunications SST 1 Ethernet and 2 Serial ports PLC communications module
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Maker  MOLEX11 [Molex Electronics Ltd.]
Homepage  http://www.molex.com

 2 page
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1 Ethernet + 2 Serial Channels
For the Allen-Bradley® ControlLogix® Controller
The BradCommunications
SSTEthernet / Serial module connects Rockwell
® ControlLogix® controllers to Modbus networks. Each module has 1
Ethernet and 2 Serial communication channels that act as independent Modbus
TCP Client/Server and Modbus Master or Slave protocols to exchange data with
other Modbus compatible devices.
The SST module acts as a 1756 input/output module between the Modbus network
and the ControlLogix backplane. The data transfer from the SST
module to the
ControlLogix processor supports 2 modes; a direct mode allowing mapping of
Modbus data in I/O processor image (496 inputs bytes / 496 output bytes) and a
messaging mode (based on CIP transaction) allowing access to Modbus data
images stored in 32K registers of the SST
module’s memory.
The SST module has a USB port on the front panel which can be used for the
startup of the module when the user configuration is stored to a USB key. This can
also be beneficial if a breakdown occurs, allowing a very quick startup to occur with
a new SST module.
Configuration and Diagnostics
Save your time, the SST module doesn’t require any ladder logic programming to
be used. The configuration is created using a PC-based Windows console software
connected via RLL (Remote Link Library) functionality allowing a remote access to
the SST module for the configuration and the diagnostics through Rockwell network
architectures (Ethernet/ControlNet/DeviceNet
The SST console allows the user to define the network parameters, Modbus
devices and the cyclic data exchanges. The console includes a user configuration
manager offering services for download, upload, copy, and rename of user
configurations. With this, a user can very easily and quickly create a new
configuration to initialize and start a SST module.
The SST console includes diagnostic tools to help with the commissioning and
monitoring of the Modbus connection. These tools allow access in read and write
modes to the Modbus slaves or to monitor and modify the module’s internal data
shared bound for a Modbus Master. Thus, the user-friendly tools are available for
controlling the communication in commissioning phase (PROG mode). This same
information is also available in production (RUN mode) through status words
making it possible for the user to manage the execution of the control application in
its ladder logic.
The BradCommunicationsSST communications module
connects your Rockwell Automation ControlLogix®
controller with up to 1 Ethernet Modbus TCP and 2 Serial
Modbus networks.
Save money!
1 Ethernet and 2 RS232/RS485
Serial Modbus channels on a
single slot - 1756 backplane
Save time!
No ladder logic to write for
configuration and data transfer
between module and
ControlLogix processor
Boot user configuration and
update firmware module through
integrated USB port
Data format: Bit, Byte, Word,
Dword, Float
RLL feature : configure and
diagnose Modbus network
remotely via A-B RSLinx®
Advanced Windows configuration
and diagnostics tools
Up to 8 SST™ modules can be
used in one ControlLogix rack
Support local and remote
Modbus TCP Client /Server
Modbus Serial Master or Slave
Typical Applications
SCADA / supervisory
Integration of legacy Modbus
Bridge Rockwell networks to
Modbus compatible devices
03 Apr. 08

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