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Halytech
hydroSpider2 User’s Manual v1.23
Page 111
Additionally, frozen counter point 1 would hold a static copy of the raw “Flow” value after a freeze
operation is performed on counter point 1.
Appendix G5.
DNP3 output point mapping
The hydrospider2 provides up to two controls which can be used to turn devices on or off (see
DNP3 supports two types of
output points
: binary outputs (on/off) and analog outputs (continuously
variable). As with input points, each type of output point is indexed, starting from 0.
The hydrospider2’s controls are binary outputs and are mapped to DNP3 output points, as follows:
The controls support the “LATCH_ON”, “LATCH_OFF” operation types to turn each control on or off.
The “PULSE_ON” operation can also be used to output a single pulse with an “on” time between 100
ms and 600 sec. Note that multiple pulses (count > 1) are not supported.
The hydrospider2 supports all of the DNP3 binary output command (control relay output block, or
“CROB”) actions, including
select
,
operate
and
direct operate
.
DNP3 will not activate a control if it is being forced on by an alarm or the web interface, or if it is
used for sensor warmup.
Note that if DNP3 has requested a control to turn on and an alarm forces that control off, the control
will remain off while the alarm is active and then DNP3 will turn it on again.
The status of each output point can be read (polled) at any time.
Appendix G6.
Setting the clock
DNP3 can be used to set the hydrospider2’s date and time.
The hydrospider2 uses UTC (Coordinated Universal Time) internally and the SCADA system should be
configured for the outstation to report UTC times.
Note that if your SCADA system is regularly updating the hydrospider2’s clock, there is no need to
also use NTP (but it doesn’t hurt to use both).
Appendix G7.
Resetting the hydroSpider2
DNP3 can be used to remotely reset (reboot) the hydrospider2.
A “warm reset” will restart DNP3, having the same effect as the “Save and Restart DNP3” button on
the Change DNP3 Settings page. Note that a warm reset only affects the DNP3 functionality.
A “cold reset” will restart (reboot) the hydrospider2. This is the same as turning the hydrospider2
off and on again (in fact, the log will record a “power on” event, even though power is not actually
lost). Any current activity such as sending a report will be aborted and all alarms will be reset to
their inactive state.
hydrospider2 Control
DNP3 binary output point index
Switched Power Out
0
Open Collector
1