Siemens SIMATIC ET 200S Operating Instructions Manual page 162

1Count5V
3.6 Count Modes
Error Detection
The program errors must be acknowledged. They have been detected by the 1Count5V and
are indicated at the feedback interface.
Channel-specific diagnostics are performed if you have enabled group diagnostics in your
configuration (see device manual of the interface module used).
The parameter assignment error bit is acknowledged by means of correct parameter
assignment.
Figure 3-21
In the case of continuous error acknowledgment (EXTF_ACK=1) or at CPU/Master Stop, the
1Count5V signals errors as soon as they are detected and resets them as soon as they have
been eliminated.
162
Error Acknowledgment
Technological Functions
Operating Instructions, 06/2010, A5E00124867-07