Disabling Transaction(s) for EN2MB-R

Don

• March 31, 2024 01:43

Is there a way to disable/enable each modbusTCP transaction either in HMS configuration software or by a BOOL tag in CompactLogix?

0

• Official comment

  

  Franziska Gültig

  • April 02, 2024 09:48

  Hello Don!

  What is your goal behind enabling or disabling ModbusTCP transactions?

  As I understand your question you want to disable some of them but not all is that correct?

  All ModbusTCP read transactions are always 'enabled' they are run cyclically in the scan time specified you can change the scan-time to a higher number so it will be requested less often.

  If you have a ModbusTCP write transaction you can switch the Trigger to 'ON DATA CHANGE'

  And this means the Data will only be written to the ModbusTCP server if you change it from the EthernetIP side.

  

  https://www.anybus.com/docs/librariesprovider7/default-document-library/manuals-design-guides/hms-scm-1202-181.pdf#page=46 

  There is no Option to disable a single or several read transactions.

  But if you check the Control Status Word you could set the whole Gateway into 'Idle' if you want it to stop communicating on the Modbus TCP side.

  br

  Franziska Gültig

  Technical Services Engineer

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