Topics created by ayone0518

Thank you for a replay.
It is remote environment, and I am afraid to lost everything once I detached a PLC.
Can I reattach PLC under porxy or remote connection ?

Hopefully I would like to know UDP port number mervis using when
finding connected PLC under the same LAN.
thank you.

Hello @ayone0518,
no, the arrays cannot be defined in FBD.

Best regards,
Martin

Hello Martin, thank you for your nice and quick reply as usual.

@martin-kudláček tanks Martin, that might help me out.
But I do not find 'Make Library' on device which I made.0_1578294732406_capture1.PNG

Hello @ayone0518,
you need to pull 32bit data, so you have to define element which spans over 2 registers. This is done via the Multibyte Length property, which you have to set to 4 (4 bytes = 32 bits)

If it is possible, I would suggest to turn the communication around. Make the Mervis a Modbus Slave (server) and the Weintek Modbus Master. Configuration in the Mervis will be much easier. Try following this tutorial: https://kb.unipi.technology/en:sw:01-mervis:setting-modbus-server-hidden and here you can see how to set it against Weintek: https://kb.unipi.technology/en:sw:01-mervis:weintek-ip-series-hidden#setting_up_the_unipi_for_sharing_temperature_and_relay_output

Best regards,
Martin

Hello @tomas_hora ,
thank you for your answer. that is the one I wanted to know.

@tomkling Thank you for your information. I also figured out 502 is used on debugging. So it is important.