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Maintenance Functions of DST1-series Safety I/O Terminals
Section 1-7
1-7-2
Monitoring the Run Hours
Description
A DST1-series Safety I/O Terminal totals the number of hours the internal cir-
cuit power is supplied and internally saves it in non-volatile memory. If the
cumulative time reaches the set threshold value, the Unit Maintenance Flag
will turn ON in the General Status.
• Measurement time:
0 to 429,496,729.5 hours
(stored data: 0000 0000 to FFFF FFFF hex)
• Measurement unit:
0.1 hour
The user can monitor this information using the Network Configurator and
explicit messages.
Note
• The run hours monitoring function totals the time when the power supply
to the DST1-series Safety I/O Terminal (network power) is ON. This does
not include the time when the power is OFF.
• The DST1-series Safety I/O Terminals measure time internally in 0.1-hour
increments. When the Threshold Run Hours parameter is set on the Net-
work Configurator and when the run hours are monitored, however, the
time will be in 1-hour increments.
Safety I/O Terminal
Run hours
Internal circuit
power
Recorded in Slave
Run hours
Network power
supply ON
Summary of Contents for DST1-ID12SL-1
Page 1: ...OPERATION MANUAL Cat No Z904 E1 06 DeviceNet Safety DST1 series Safety I O Terminals...
Page 2: ......
Page 3: ...DST1 series Safety I O Terminals Operation Manual Revised June 2011...
Page 4: ...iv...
Page 10: ...x...
Page 14: ...xiv...
Page 110: ...86 Remote I O Allocations Section 3 2...
Page 116: ...92 Indicators Section 4 2...
Page 134: ...110 DST1 XD0808SL 1 Section 5 4...
Page 146: ...122 Maintenance Section 7 4...
Page 159: ...135 Logic Terminal Wiring Examples Section 8 3...
Page 160: ...136 Logic Terminal Wiring Examples Section 8 3...
Page 178: ...154 Index...
Page 181: ...157 Revision History...