Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
5
Input/output (I/O) modules
5-111
Fast counting modules
Case b): If the count range has to extend beyond the value 65,535, “Reset
Enable” can be activated later, i.e. between the penultimate and the
last time the counter reaches zero. This means that the CCO output is
only reset after several passes of the counter. The number of passes is
counted by a CPU counter.
For example, output CCO should be switched off after 200,000 count signals.
0 200'000
3392 65536 65536 65536
200'000
3 2 1 0 4
Counter Flag
Reset Enable
CCO
CPU counter
Programming
Classic: Programming examples for the PCD2.H100 can be found in a separate
manual and on the TCS Support site (www.sbc-support.com + getting started).
xx7: the rmware reads in the values according to the conguration (I/O Builder)
Watchdog: This module cannot be used on the base address 240 (or 496 for the
PCD2.M17x), because it would interact with the watchdog, and would cause a
malfunction.
For details, please refer to the “Watchdog” section, which describes the correct use
of the watchdog in conjunction with PCD2 components.
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