The 140 CRA 93• 00 update is performed using OS Loader software via a Modbus or Modbus Plus physical connection, and a 140 CRP 93• 00 head module.
Update Operation and Associated Connections
Main operations performed to update a 140 CRA 93• 00 module:
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Operation
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Communication protocol
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Connect the PC to the Modbus or Modbus Plus port of the CPU.
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Modbus
Modbus Plus
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Update the 140 CRA 93• 00 module firmware.
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The update of a 140 CRA 93• 00 module via a 140 NRP 954 01C repeater may not be possible as indicated in the following table:
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CRA module reference
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Product version
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Remote OS update via 140 NRP 954 01C repeater
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140 CRA 93• 00
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≤ 08
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Yes
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≥ 09
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No
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NOTE: For CRA modules with a product version 09, update the software version of the CRA module from 2.0 to 2.01 before using a 140 NRP 954 01C repeater in the S908 RIO network.
Connect your PC to the CPU located on the same rack as the 140 CRP 93• 00 head module. The 140 CRA 93• 00 drop module is connected to the head via an S908 network. For more information, refer to the topic on
Connecting the PC to a CPU.
