ROC364 Instruction Manual
3-26
Input and Output Modules
Rev Jun/05
To verify low-speed operation of the
PI Isolated
module:
1.
Alternately supply and remove an input voltage across terminals B and C.
2.
The module LED should cycle on and off, and the total accumulated count (Accumulated Pulses)
should increase.
3.5.9 Slow Pulse Input Source Module
Equipment Required:
Jumper wire
To verify low-speed operation of the PI Source module:
1.
Connect and remove a jumper across terminals B and C several times to simulate slow switching.
2.
The module LED should cycle on and off and the total accumulated count (Accumulated Pulses)
should increase.
3.5.10 Slow Pulse Input Isolated Module
Equipment Required:
Jumper wire
To verify low-speed operation of the PI Isolated module:
1.
Alternately supply and remove an input voltage across terminals B and C.
2.
The module LED should cycle on and off and the total accumulated count (Accumulated Pulses)
should increase.
3.5.11 Low-Level Pulse Input Module
Equipment Required:
Pulse Generator
Frequency
Counter
Personal Computer running ROCLINK configuration software
NOTE:
When checking the operation of the Low-Level Pulse Input module, ensure that the Scan
Period for the Pulse Input is once every 22 seconds or less as set by ROCLINK configuration
software.
To verify operation:
1.
Connect a pulse generator, with the pulse amplitude set at less than 3 volts, to terminals B and C.
2.
Connect a frequency counter across terminals B and C. Set the pulse generator to a value equal to
or less than 3 kilohertz.
3.
Set the frequency counter to count pulses.
4.
Verify that the count read by the counter and in the total accumulated count (Accumulated
Pulses) read by the ROC are the same using ROCLINK configuration software.
