Hello
I am trying to get a communication between my PLC S7-1500 and a UR3e.
For that I am using the Dashboard server and the communication blocks TSEND_C and TRCV_C
Unfortunatly the TSEND_C Block shows # 7004 which means it is not sending.
Has anyone an idea why this is happening?
Thank you!
I did trace it.
The Status goes from 7004 to 7005 when the trigger arrives
then it goes to 0 when the done bit is activated. then it goes back to 7004
But my robot did not recieve any data.
I don’t get it
So the switch to 7005 should mean, that the message has been succesfully sent and received. 
What does the data you’re sending look like? You need to use line breaks in the command strings.
I think you should remove the space after “on”.
Also make sure that:
- UR3e is not initialized (red indicator in lower left corner)
- UR3e is in Remote mode (upper right corner, can be enabled in System Settings)
Thank you, I will try without the space after “on”.
I feel like sometimes the connection works, but sometimes it doesn’t. Is it correct to open the TSEND_C Block everytime I want to send something?
If I want to read, do I have to put the Robot as active partner?
You can both have the connection open constantly or open it each time. If you send commands regularly, I would keep it open.
Active partner? Not sure I understand. If you want to read, you should make a TRCV_C (or whatever it’s called) to receive strings and store in datablocks.