Siemens SIMATIC ET 200S Manual page 511

How it works: Teach-in
1st Option
Figure 14-7
ET 200S Distributed I/O System
EWA-4NEB780602402-09
Normal operation
Specify value "0" on bit 1 to bit
7 in PIQ
Start teach-in
with the falling edge on bit 0 in
PIQ
Teach-in is executed
Teach-in terminated
with the falling edge on
bit 0 in
PIQ
Teach-in error:
Acquired sensitivity/
distance value = 0
(bit 1 to bit 7 in the PII)
Specify a new
sensitivity/distance
value (IntelliTeach)
How it works: Teach-in
Valid sensitivity/
distance value detected
No valid sensitivity/
distance value detected
2nd Option
4 IQ-SENSE
14-15