Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Counting module
Input/output (I/O) modules
6-89
6
6.15.1 PCD2.H100, counting module up to 20 kHz, 1 channel
Application
Simple counting module, comprising two inputs "A" and "B" plus one direct control
output marked “CCO”; allows counting of the number of revolutions or the calculation
of distances (pulses) and the measurement by counting of pulses within a logical
AND gate (second input)
Typical areas of application:
●
Counting revolutions or distances (impulses)
●
Presetting a count value and switching off output CCO when Counter = 0
●
Measurement by counting: measuring signals counted only when particular
conditions are met, e.g. photoelectric barrier covered
●
Counting with recognition of count direction for incremental shaft encoders
providing simple motion control
Technical data
Number of systems:
1
Counting range:
0
… 65,535 (16 bit) (can be extended with CPU counters)
Counting frequency:
max. 20 kHz (at pulse/pause ratio 50%)
Data protection:
All data in this module are volatile
(non-volatile PCD registers are available).
Digital inputs
“IN-A” and “IN-B” signal voltages:
Nominal voltage:
24 VDC
“low" range:
-30 …
+5 V
“high" range:
+15 …
30 V for source operation
Input current:
typically 7.5 mA
Input filer:
25 kHz
Process output
Counter controlled output CCO:
counter output (switches when count is 0 or 65,535)
Current range:
5
… 500 mA
(max. current leakage 1 mA)
(min. load resistance 48 Ω in
voltage range 5..24 V).
Voltage range:
532 VDC smoothed, max. 10% ripple
Circuit type:
Electrically coupled, not short circuit protected,
positive switching
Voltage drop:
typically 2V at 500 mA
Output delay:
< 10 µs,
(longer for inductive load due to
protec-
tive diode).
Power supply
External supply
5
…
32 V
DC
, (for supply to CCO output only)
Internal current consumption:
(from +5 V bus)
max. 90 mA
Internal current consumption:
(from V+ bus)
0 mA
External current consumption:
CCO output load current
Operational conditions
Ambient temperature
operation: 0
…
+55 °C without forced ventila-
tion,
Storage: -25
…
+85 °C
Noise immunity:
CE mark acc. to EN 61 000-6-3 and EN 61 000-6-2