PM8000 and Port 502

[michael_franz]

We have four PM8000 meters in our lab.  Two of them will not except communication over Port 502.  The only obvious issue I can see is that the two that are not able to do Modbus coms have newer firmware.

All are being done over IP directly.  Each device has address 1.  All can be addressed with ION Setup and via their web page.

It may be a red herring but here is the list

Meter      Firmware          Readable

QED        001.003.001     No

DEMO     001.003.001     No

Meter      Firmware

MCC        001.002.014  Yes

Cart         001.000.057   Yes

The first two will not return register reads with Tester or a ComX 5100 The third and forth work with both.

Is there anything else we should check.  Should I back set them to older firmware.

Thanks,

Michael

[Andrew_Garbutt]

Perhaps the protocol was disabled? For the PM8000, you can individually enable/disable various protocols from ION Setup, or through the Ethernet Comm module in Designer.

[Cliff_Schubert · Accepted solution]

The 1.3.1 firmware fixed a a few Modbus & communications issues and also added IPv6 Support

(What's new here: PM8000 series firmware v1.3.1 what's new)

If port 502 is enabled as @Andrew Garbutt in the post above, are there any IPv6 settings in your environment that could be affecting things?

Does the meter communicate for a while but then stop?

[michael_franz]

Cliff:

Thanks, looks enabled.

[michael_franz]

fixed it