Example 1, Continued - Siemens Metro 21 M216KA Operator's Manual

The 1COUNT40kHz Counter Module
Current count = loaded
Enable gate
Current count = loaded
Stop gate
Current count = loaded
Figure 13-19 Example 1, Continued
13-22
Yes
value
value + 20
value + 20
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
This is the earliest point at which the
loaded value AW 0 can be changed
EW 0 = "loaded
value"
A 4.0 = 1
20 pulses, for example, arrive at
the input of the counter (A)
EW 0 = "loaded value" + 20
A 4.0 = 0
Another 10 pulses arrive at the in-
put of the counter (A)
EW 0 = "loaded value" + 20
EWA 4NEB 780 6009-02c