Monitoring The Contact Operation Counters - Omron DST1-ID12SL-1 Operation Manual

Maintenance Functions of DST1-series Safety I/O Terminals
1-7-4

Monitoring the Contact Operation Counters

Description
Note
34
A DST1-series Safety I/O Terminal totals the number of times each safety
input contact, test output contact, and safety output contact turns ON and
internally saves the data in non-volatile memory. If the value of a counter
reaches the threshold value, the Connected Component Maintenance Flag in
General Status will turn ON.
• Measurement count:
• Measurement unit:
• Maximum resolution:
Safety I/O Terminal
Number of
operations
I/O power
Output device
(e.g., relay)
The user can monitor this information using the Network Configurator and
explicit messages.
• One contact cannot be used at the same time for both the time and
count monitoring functions. Select only one of these in the Mainte-
nance Counter Mode Choice.
• If the Maintenance Counter Mode Choice is changed, the counter or
time data saved internally will be cleared.
• This function does not operate when the I/O power supply is OFF.
0 to 4,294,967,295 counts
(stored data: 0000 0000 to FFFF FFFF hex)
Operations
166.7 Hz
Record in the Slave
Number of times output
contact changes to ON.
Section 1-7