Omron SYSMAC CS Series Operation Manual page 116

CS1W-PPS01 Isolated-type Pulse Input Unit
Specifications
Item
Model
Applicable PC
Unit classification
Mounting position
Maximum number of Units
Unit numbers
Areas for data CIO Area words
exchange with allocated for
CPU Unit Special I/O
Units
DM Area words
allocated for
Special I/O
Units
Number of pulse inputs
Pulse input type
Sensor power supply
Conversion to instantaneous val-
ues
CS1W-PPS01
CS-series Series
CS-series Special I/O Unit
CS-series CPU Rack or CS-series Expansion Rack (Cannot be mounted to C200H
Expansion I/O Rack or SYSMAC BUS Remote I/O Slave Rack.)
96 (within the allowable current consumption and power consumption range)
00 to 95 (Cannot duplicate Special I/O Unit numbers.)
10 words/Unit
Pulse Input Unit to CPU Unit:
All process values, process value alarms (LL, L, H, HH), accumulated values, Accu-
mulation Reset Flag
100 words/Unit
CPU Unit to Pulse Input Unit:
Instantaneous value conversion coefficient, instantaneous value scaling, pulse weight,
number of values for moving average, instantaneous value alarm settings (LL, L, H,
HH), zero/span adjustment, etc.
4
Voltage input, no-voltage semiconductor input, contact input (selected individually for
each of 4 inputs, according to connection terminals)
No-voltage semiconductor input: Connected to voltage input terminals (between Fn+
and COMn).
Maximum coefficient speed: 20,000 pulses/s (duty ratio: 50%)
Detection voltage: 4 V DC
Short-circuit current between terminals: 1.2 mA DC
ON resistance: 0.8 kΩ max.
OFF resistance: 5.0 kΩ min.
Voltage input: Connected to voltage input terminals (between Fn+ and COMn).
Waveform: Square wave
Maximum coefficient speed: 20,000 pulses/s (duty ratio: 50%)
ON voltage: 0 to 1 V
OFF voltage: 3 to 30 V
Contact input: Connected to contact input terminals (between Sn+ and COMn).
Maximum coefficient speed: 20 pulses/s (duty ratio: 50%)
Detection voltage: 8 V DC
Short-circuit current between terminals: 2.4 mA DC
ON resistance: 0.8 kΩ max.
OFF resistance: 5.0 kΩ min.
For no-voltage semiconductor inputs, etc., a 12-V DC power supply can be provided
for the sensors that are the pulse sources.
Output voltage: 12 V DC ±15%
Current capacity: 30 mA max.
Limit current when short-circuited: 31 to 55 mA
Allowable short-circuit time: No limit
This function can be used to count the number of pulses per time unit, and to convert
the values to instantaneous values (pulses/time unit). Any of the following can be
selected as the time unit: 1 s, 3 s, 10 s, 30 s, or 60 s. (The time unit is set in the DM
Area.)
Note Errors and fluctuations will increase when the input signal pulse rate is low, so
specify a longer time unit. The instantaneous value is only refreshed at intervals
of the time unit set. Therefore, when the Unit is restarted, the instantaneous
value will be 0000 until the time set as the time unit has elapsed.
Specifications
Section 2-8
103