Siemens SIMATIC ET 200S Operating Instructions Manual page 103

Error Detection
The program errors must be acknowledged. They have been detected by the
1Count24V/100kHz and are indicated in the feedback interface. A channel-specific diagnosis
is carried out if you have enabled group diagnostics in your parameter assignment (see the
ET 200S Distributed I/O System
The parameter assignment error bit is acknowledged by means of correct parameter
assignment.
Figure 2-43
In the case of continuous error acknowledgment (EXTF_ACK=1) or at CPU/Master Stop, the
1Count24V/100kHz signals the errors as soon as they are detected and deletes them as
soon as they have been eliminated.
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05
Manual).
Error Acknowledgment
1Count24V/100kHz
2.8 Position Detection
103