Posts made by ayone0518

I figure out how to attaching PLC on remote env.
I used slave address range so that I could find my PLC. But something wrong with my PLC happened that It says linux rev. 1.0 platform type. My actual platform type is Axon M205, and License has been activated but it says not licensed. Tell me what happened to my PLC and how to recover it on remote env. ?

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.

suddenly, I see error below

Error	PLC			0	1	Serial number of target controller does not match the serial number in project

but I use on same controller.
Is there anyway to force writing image to my controller (AXON M205) ?

Thank you Martin.
I have one more question.
Can I declare array as local variable on Mervis FBD UI ?
It seems I can't do this on it.

Hello,
I have questions about arrays to pass to ST programs and FBD programs.

1. how to declare arrays on MervisIDE, such as MyVariables ARRAY[0..10] on INT ? I do not see any array related type in pull downs.
2. according to my case, Mervis has specific array type of int, MultiIoInt data type. Are you supposed me to use this type when I want use array of integer ?

thank you.

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

Hello.
I would like to know the difference of behave on the variable 'write on change' checked and not checked. thank you.

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

Hello, all.
I made large ModbusTCP maps on Mervis(v 2.1.3) .
I could exported them as two files, PLC_coils.csv and PLC_registers.csv.
I would like to know how to import these csv files to another device
for reusing them quick.
Thank you.

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

I am not sure that here is the right place to ask.
I want read real value on Mervis from Touch Screen MT8071ip,
I bought shop here. I could read and write on type of int value,
but I don't know how to configure for real.

thank you.

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

I would like to know easiest way to recover entire AXON system
when the image corrupted.

thank you.

Thanks Martin.
PyModbus worked great to me and I understand how to map variables on Mervis to be placed as modbus tcp touchable.

I Still have curious question. I configured 503 port as modbus server, because 502 is already used as another modbus. What is this modbus used for ?

thank you.

@martin-kudláček Thank you for the information. It sounds tough to implement. I finally figured out that if I keep running my application on PLC to collect data and passing result into variables that PLC can touch, it will work equivalent to my question above. Can I do this on Mervis ?

I want to run my python program and receive results. How can I do this on Mervis?