SMP Gateway User Manual • 231
26.3 System Data Points
The SMP Gateway has system points for various purposes and features, such as remote access,
security, time adjustment and redundancy. When they are present on an SMP Gateway, they can
be seen using the SMP Gateway’s Web Server. When an SMP Gateway’s slave protocol
subscribes to them, they provide useful information to the SCADA.
The following list describes all available system data points:
Data Point Name Description
Power Status
_smp___voltage_ok If set to 1, this binary input point indicates that the
SMP Gateway’s power supply’s voltage is within its normal
range of operation.
Temperature
_smp___temp_ok
(available on SMP 4-20 and
SMP 8-40)
If set to 1, this binary input point indicates that the
SMP Gateway’s internal temperature is within an acceptable
range.
_smp___temperature
(available on SMP 16/SP)
This analog input point states the temperature, in °C, inside
the gateway.
Clock-Related Information
_smp___clockYear This analog input point states the SMP Gateway internal
clock’s year information.
_smp___clockMonth This analog input point states the SMP Gateway internal
clock’s month information.
_smp___clockDay This analog input point states the SMP Gateway internal
clock’s day information.
_smp___clockHour This analog input point states the SMP Gateway internal
clock’s hour information, using the 24-hour notation.
_smp___clockMinute This analog input point states the SMP Gateway internal
clock’s minute information.
_smp___clockSecond This analog input point states the SMP Gateway internal
clock’s second information.
_smp___clockSynchronized
(available on SMP 4 and SMP 16)
If set to 1, this binary input point indicates that the
SMP Gateway’s internal clock is actually synchronized with
an external time source, such as GPS or IRIG-B.
_smp___battery_ok
(available on SMP 4-20, SMP 8-40
and SMP 4)
If set to 1, this binary input point indicates that the clock’s
battery is operational..
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