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37
Maintenance Functions of DST1-series Safety I/O Terminals
Section 1-7
1-7-5
Monitoring the Total ON Times
Description
A DST1-series Safety I/O Terminal totals the time each safety input contact,
test output contact, and safety output contact is ON, and saves it internally in
non-volatile memory. If a cumulative time reaches the threshold value, the
Connected Component Maintenance Flag in General Status will turn ON.
• Measurement time:
0 to 4,294,967,295 seconds
(stored data: 0000 0000 to FFFF FFFF hex)
• Measurement unit:
Seconds
The user can monitor this information using the Network Configurator and
explicit messages.
Note
• 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.
• The time monitor checks if the connected component is ON approxi-
mately every second. This should be noted when the time is mea-
sured in increments of 1 second or less.
Safety I/O Terminal
Total ON time
Connected
device
Recorded in Slave
Total ON time
Sensor
I/O power supply
ON
OFF
Содержание DST1-ID12SL-1
Страница 1: ...OPERATION MANUAL Cat No Z904 E1 06 DeviceNet Safety DST1 series Safety I O Terminals...
Страница 2: ......
Страница 3: ...DST1 series Safety I O Terminals Operation Manual Revised June 2011...
Страница 4: ...iv...
Страница 10: ...x...
Страница 14: ...xiv...
Страница 110: ...86 Remote I O Allocations Section 3 2...
Страница 116: ...92 Indicators Section 4 2...
Страница 134: ...110 DST1 XD0808SL 1 Section 5 4...
Страница 146: ...122 Maintenance Section 7 4...
Страница 159: ...135 Logic Terminal Wiring Examples Section 8 3...
Страница 160: ...136 Logic Terminal Wiring Examples Section 8 3...
Страница 178: ...154 Index...
Страница 181: ...157 Revision History...