reading parameters in drive with TWIDO

[jnegrete]

Hello:

I'm using a TWIDO PLC to command two drives in a MODBUS RTU network. In order to command this drives, I use the DRIVE COM instruction and they are working fine.

But, I need to read some parameters in this drives, and I wish to use the READ N WORDS macros, but because there are different memory address, I can only read a few. I have 3 READ instructions in the program but when I run the program only the first one is completed, the others can not be read.

I believe I can use the MSG instruction but the help does not explains very well how to use it, so I need help

Thanks in advance.

 

[GeoffC]

Wait until the first read completes, then trigger the next read, and so on. Only have one read active at a time