Translation from the Russian test:

alex_set

Hi all.

I am trying to get data from tic edwards via cp440.

I am using fc9 and fc10 blocks. The cp440 is communicating, but the received data block is empty.

Send data #01?S902$r

Step 7 v5.5 + sp1 project

[snip]

Please have a look a Duris_I's replies to this post. The OP works with RS 232 communications with the TIC, but singce your question is on the ASCII protocol it should still be helpful.

https://support.industry.siemens.com/forum/ca/en/posts/ascii-rs232-communication-between-edwards-tic-with-cp340/142502

Hope this helps,

Daniel Chartier

Hello,

alex_set

Wrote in English. But for some reason the text was translated into Russian.

I read that post.

Unfortunately, there are no COM ports on the laptop, so I can’t check it with the terminal.

Commands are compiled in approximately the same way using the AT structure.

DB40

0.0 array

DB40. DBB 0 -> command start

,

,

,

DB40. DBB 0 ->$r

1. Unfortunately, there are no COM ports on the laptop

what about use the correct USB to serial converter?

2, DB40. DBB 0 ->$r

this is wrong, you need add index+1 (element) of array to set correct values as documentation shows so I expect as example ...DB40. DBB5  ->$r as 6-th element of array because of 0-th start but you need to set them correctly via documentation. Then you need point to correct DB number and start byte number inside SEND block to have correct communication. On other side, you need to do also correct SEND handling state machine but this is mandatory for every prj.

Hello,

no problem. One tip as my everytime habit. Look to that $r expected special char, it is not easy to understand what it means and what represents. I use everytime hex representation, then you can easy set 16#0D and all is clear.