conzerv EM6436 energy meter not communicating with Modbus

[sarfraj]

Hi all,

I have 10 to 20 conzerv Em6436 energy meter. I'm trying to connect these meters with PME. all meters are not communicating with neither MODSCAN, PAS600 or any Modbus master device. I have checked everything ID, Baud rate, Parity bit, stop bit.

Can anyone support me to find a solution.

Please find attached meter image for better understanding.

[sarfraj]

@Charles_Murison  Could you please support.

[Romain_Polette]

Hello @sarfraj, 

Please tell us more about your architecture.

You want to connect the meters to PME, but how ?

• Directly in serial to your PME server ?
• Use the Panel Server as a Gateway for the EM6436 ? Did you enable Modbus Services on the PAS600 ?
• Other Modbus TCP gateway ?

Regards, 

[Charles_Murison]

Hello @sarfraj ,

Sadly I do not know the EM6000 series of meters so I am unable to help with this meter. Does the meter support modbus? Are there settings you need to check to make sure that what is trying to talk to the meter match? For example, baud rate, parity and number of stop bits. 

regards,

Charles

[sarfraj]

Sir, I'm trying to connect  using Panel server (PAS600) for the Conzerv EM6436 and yes i have enabled Modbus Services.

And i also tried to connect Modscan using serial to USB converter.

It's not connecting. Is there anything i can try to communicate meter with RS485 

[sarfraj]

Hello @Charles_Murison 

yes this meter has RS485 port and settings for ID, Baud Rate and Parity Bit. i have configured correctly, other Model meters e.g. EM6436H,  in the same network communicating succesfully.

[sarfraj]

Hi, @Charles_Murison , @Romain_Polette 

Do you know anyone in this community who can help to find the solution

[Romain_Polette]

Hello @sarfraj , 

Please note that EM6436 is not native to Panel Server. Only recent H version is native.

Please check documentation for this meter.
It seems you need to send full block requests to read correctly the modbus registers (if I understand well):

Regards, 

[sarfraj]

Hi @Romain_Polette  Sir,

I tried to connect With panel server as unknown device, it's not connecting.

And tried to read Modbus register values from Modscan using USB converter, it's not connecting you can find attached image for reference.

[Romain_Polette]

Hello @sarfraj , 

None of your Modbus client can reach your device (error = time-out).

Please check if the COM parameters (baudrate, parity, and time out delay) of your USB port are correct.

Same remarque when connecting with Panel Server. Check if increasing timeout improves connection.

If you still cannot connect, please check with tech support and forward Panel Server technical logs. More information regarding your issue will be available on the logs.

Regards,  

[sarfraj]

Thanks @Romain_Polette,

I tried today doing that too, It's not working.

[Robert_Lee · Accepted solution]

If you can test with another device using the exact same setup to isolate whether the issue is with the meter directly (or if its with the comm setup like the USB -> RS-485 converter).

Your 2 wire RS-485 cable should be wired to the bottom connectors as view from the back of the device as shown in the EM6400 User Guide

I believe the + RS-485 terminal is on the left and the negative terminal on the right looking at the back view.

[uday_013]

Do try to communicate with parity setting - EVEN, 

[sarfraj]

Hi @Robert_Lee 

I tried another device with same method.

I'm able to get device data.

[Ramasamy_N]

Hi @sarfraj 

This seems to be strange, can you connect with local technical support team for further investigation?