Siemens SIMATIC S5 ET 200U - Function; Typical Application

9-17
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
A counter module is plugged into slot 2 (module address 2.0). A value of 100
is set on channel 0 of this module via the three–digit thumbwheel switches.
The incoming pulses are counted once the counter has been enabled by the
control program. As soon as 100 pulses have been counted, a signal (output
4.0) is released.
Connection Diagram
1
2
3
4
5
6
7
8
9
10
STL Explanation
S Q 2.0
A I 2.0
= Q 4.0
During the counting operation, input I 2.0 is 0.
When the counter status is 0, input I 2.0 is set to 1.
Output Q 4.0 is then also set. Direct output at termi-
nals 5 and 6 is possible.
Typical Application
Function Modules