Siemens simatic s7-400 FM 450-1, User Manual, Page: 89 / 130

Modes, settings, parameters and commands
8.12 Initiating a process interrupt
Counter module FM 450-1
Manual, 02/2014, A5E03648739-02
89
Multiple setting with the zero mark
The following figure shows multiple setting of counter 1 with the zero mark. In the case
represented here, only ENSET_UP is set, i.e., the counter is set during up counting.
The relevant counter is set with each first rising edge of the zero mark as long as
ENSET_UP and input 1I2 are set.
The situation is analogous for counter 2 with input 2I2.
Figure 8-10 Multiple setting of counter 1 with the zero mark