Contact Operation Counter - Omron GRT1 - 11-2007 Operation Manual

Functions of Digital I/O Units
4-4-4

Contact Operation Counter

Function Overview
Note
The Contact Operation Counter is used to count the number of times each
input or output contact has changed from OFF to ON (maximum resolution
50 Hz) and record the total value calculated in the Unit.
The monitor value can be set in the Unit, and when the set number of opera-
tions is reached, the Connected Device Maintenance Flag in the Status Area
will be turned ON. (The Programming Device can be used to read the status
of the Connected Device Maintenance Flag.)
• Counted operations: 0 to 4,294,967,295 operations (stored data:
00000000 to FFFFFFFF hex)
• Counting unit: One operation
Slice I/O Unit
Recorded in the Unit
OFF to ON
Output device
(relay, etc.)
1. The Contact Operation Counter and Total ON Time Monitor cannot be
used at the same time for a single contact. Select the function to be used
in the Detection Mode Area.
2. The Contact Operation Counter will not operate unless I/O power is being
supplied.
Number of times output
contact goes OFF to ON.
Section 4-4
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