lucifersaki

Q04UDE+MC Protocol

6 posts in this topic

Posted (edited)

Hello, i want to read value X1,X2,Y1,Y2 from PLC Q04UDE by MC protocol. now  i can connect to plc but i can't read value. Plase help me . How can i do?

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Edited by lucifersaki

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Can you post your GX settings as well for ethernet and the port ?

Also do you get an error in your ethernet diagnostics from the Q04UDE?

 

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Posted (edited)

23 minutes ago, Gambit said:

Can you post your GX settings as well for ethernet and the port ?

Also do you get an error in your ethernet diagnostics from the Q04UDE?

 

Yes error code 0057 in ethernet diagnostics.

i send 01040000640000A80300 HEX to plc.

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Edited by lucifersaki

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Looks like you're almost there:

The number of points for a command specified by a connected device exceeds the maximum number of processing points (number of processes that can be executed per communication) for each process.

Addresses from the start address (start device number and start step number) to the specified number of points exceed the largest addresses (device number and step number) for each process.

Can you reduce the number of device points. Change H800(2048) end of you're command

 

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I tried it and it didn't work. how can i do?

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Posted (edited)

Did the Error on ethernet change ?

So this is what you want to do right :
0104 0000 640000 A8 0300

Reads word devices in units of one point.
start adres 100
Device =  D
3 points

 

your screen capture has this...???

0104 0100 640000 90 0800

Reads bit devices in units of one point.
start adres 100
Device =  M 
8 points

 

 

Edited by Gambit

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