Data Station Modbus TCP/IP issues

JHarbin · Jan 24, 2020

woolie161 said:
From JHarbin:
That said, if it *was* working, then I don't think that the PLC is polling the BMS. As I mentioned earlier, that is the only way the DSPLE will actually make requests. That's why using the Watch Window works.

The data from the PLC tags connected to the data station are MOVEd into a different PLC tag on an unconditional rung. The PLC Heartbeat and the Slave "IsDeviceOnline & DeviceStatus" are working so I assume the PLC is polling the Redlion Data Station.

Woolie

I'm pretty sure that those tags only indicate that the DSPLE can talk to the BMS, not that it is actually polling the BMS to get data.

woolie161 · Jan 25, 2020

I have got my hands on a spare BMS so I should be able to test different situations at my leisure at Home. If I work it out and it is successful on site I'll post my findings.
Thank you all for
Woolie

woolie161 · Jan 28, 2020

Red Lion Modbus Issues

Hi All, Thanks to JHarbin and Kolyur for their response. I had no issues communicating to the spare "BMS" and today it was determined that it was a firmware update on the installed BMS that caused the issue.

Again thank you for the replies and the assistance.
Woolie

drbitboy · Jan 28, 2020

woolie161 said:
it was a firmware update on the installed BMS that caused the issue.

And it took four days to find out?

Been there.

Bloody.
Well.
Done.
That.

Data Station Modbus TCP/IP issues

JHarbin

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woolie161

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woolie161

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drbitboy

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