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E-112073-0001 数据表(PDF) 2 Page - Molex Electronics Ltd. |
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E-112073-0001 数据表(HTML) 2 Page - Molex Electronics Ltd. |
2 / 3 page 1 Ethernet + 2 Serial Channels For the Allen-Bradley® ControlLogix® Controller Overview The BradCommunications ™ SST™ Ethernet / Serial module connects Rockwell Automation ® 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 BradCommunications™ SST communications module connects your Rockwell Automation ControlLogix® controller with up to 1 Ethernet Modbus TCP and 2 Serial Modbus networks. Features Save money! 1 Ethernet and 2 RS232/RS485 Serial Modbus channels on a single slot - 1756 backplane compatible 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 chassis Protocols Modbus TCP Client /Server Modbus Serial Master or Slave (RTU / ASCII) Typical Applications SCADA / supervisory communication Integration of legacy Modbus devices Bridge Rockwell networks to Modbus compatible devices 03 Apr. 08 DW2007211 |
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