MKS MF1 - Get Communication Status (U or U)

Chapter 5: Process Interfaces
77
Get Communication Status (U or u)
send:
U or u
Cmd not required
receive:
U or u res res res res res ERR TOO
Error Messages
0 => not occurred
1 => occurred
res reserved
ERR An Error Telegram Occurred
Cmd
TOO Timeout Occurred
After reading the Communication Status with 'U' the status is reset.
For leaving the communication without a timeout error, send the 'U' cmd.