M241 and atv320 modbus rtu

AlAsKora

Member
Join Date
Oct 2019
Location
Ankara
Posts
3
Hi ,
My devices are m241 and atv320 , i did paramaters settings , ı wanna read or write Fr , Current , Voltaga etc. However ı couldn't connection , ı dont know what is going wrong would you help me ? I sharing my paramaters.


Output frequency 16#0C82 = 3202
Frequency setpoint 16#2136 = 8502
https://imgyukle.com/i/Eu5ZZy
https://imgyukle.com/i/Eu5Mpp
https://imgyukle.com/i/Eu56ch
https://imgyukle.com/i/Eu5Fu6
https://imgyukle.com/i/Eu5lwx
https://imgyukle.com/i/Eu50Hj
https://imgyukle.com/i/Eu54JM
https://imgyukle.com/i/Eu593n
https://imgyukle.com/i/Eu5wk8
o_Oo_Oo_O
 
Welcome to forum.
I haven't used modbus with 241 but I can see at least 2 errors at logic.


1. You need to config your PLC serial card to master. Now ATV320 and PLC are both slaves. PLC need to be master.
2. You have RS485, write and read blocks can't work simultaneous on RS232 or RS485. You need to alternate every read and vrite block.


Is addr_table adressing {1.1} right?

Check also that from manual, thinking that it could be 2.1

(Wild quess PLC port.slave, so 1.1 is pointing to port1 and slave1, not to PLC port2?
 
Welcome to forum.
I haven't used modbus with 241 but I can see at least 2 errors at logic.


1. You need to config your PLC serial card to master. Now ATV320 and PLC are both slaves. PLC need to be master.
2. You have RS485, write and read blocks can't work simultaneous on RS232 or RS485. You need to alternate every read and vrite block.


Is addr_table adressing {1.1} right?

Check also that from manual, thinking that it could be 2.1

(Wild quess PLC port.slave, so 1.1 is pointing to port1 and slave1, not to PLC port2?

Thx for answer , my english low level but i try explain himself , if ı use write_read_var block will be work ? , i was tried but didnt work ,
do you think the atv settings are wrong? ,addr table i tried 1.1 1.2 2.1 2.2. xD didnt work , mate have you simple example program ? , Would you share with me ?
 

Similar Topics

Hello, Recently I was asked to analyze the logic of the air conditioning system in one of our departments. The PLC that controls this system is...
Replies
2
Views
123
Hi all, I've read the thread below which is similar to my situation... https://www.plctalk.net/qanda/showthread.php?t=127711 But I am unable to...
Replies
3
Views
476
I have a machine that has M241 PLC. I need to add a couple of outputs to the program, and I don't have the original code. Am I screwed or can I...
Replies
1
Views
439
Hello everyone! I have a Schneider M241 as master of a CAN network with several encoders and whatnot, everything is working fairly well. Now...
Replies
3
Views
1,657
Hello, I just wanted to thank in advance for taking the time to read and help if possible. I'm currently working on a project creating the Logic...
Replies
3
Views
1,680
Back
Top Bottom