Device error, more than three invalid AT telegrams in a row.

I want to include 16#1A13 Inputs (Torque Actual Value) in a drive at Process Data. After making the edit in ctrlX I/O Engineering and successfully downloading it to the controller, I observe the following status:
EtherCAT Master is in OP (Operational) mode
Motion Axes are running
Motion Axis Profiles are running

However, when I check Motion Axes Configuration/Commissioning, every axis is in ERRORSTOP state, showing the following errors:
090F2000: Device error
0C550001: Field device error
Error level: SEVERE
Reason: More than three invalid AT telegrams in a row

Interestingly, I can add 16#1A1E Inputs (Analog Input 1) without any issues.

The Question:
Where does the issue originate? What could I check to diagnose the problem?
I have already verified that 16#1A13 is mapped to 16#6077#00, which aligns with the EASII Help documentation.
At the CoE tab with index 0x6077, the torque value matches the drive's display, which I can also monitor using EASII software.

Any insights or troubleshooting steps would be appreciated.

4 replies