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What is the behavior of Channel 0 in a BMXNOM0200 when used on an M580 ERIO drop?

Goals and Symptoms

The behavior of Channel 0 on a BMXNOM0200 is different when used in an ERIO drop than when used in a local rack.

 
Facts and Changes
 
When the BMXNOM0200 is used on a local IO rack and Channel 0 is configured for Master mode, either RS232 or RS485 can be selected.  
When the BMXNOM0200 is used on a local IO rack and Channel 0 is configured for Slave mode, either RS232 or RS485 can be selected..

When the BMXNOM0200 is used on an ERIO drop and Channel 0 is configured for Master mode, either RS232 or RS485 can be configured.
When the BMXNOM0200 is used on an ERIO drop and Channel 0 is configured for Slave mode, the only selection is RS485.  RS232 cannot be selected.


Causes and Fixes

If RS232 for Slave mode is required with a BMXNOM0200 Channel 0 on an ERIO drop, then it is recommended to use an RS232 to RS485 converter with this port.

 
Additional Information

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