iWorx® PSU1
505-012, Effective: August 10, 2012 21
© 2012 Taco Electronic Solutions, Inc.
Network Inputs
The PSU1 allows a network manager to write to Network Input Variables for the purpose of overriding the configuration,
operation and outputs of the PSU1. The network input variables are listed below.
Values written to NVIs have absolute priority over any other controller operation.
• nviOccCmd is a legacy, unused network variable. Overriding this variable does not affect controller operation.
• nviResetRuntime is a command to reset the pump runtimes displayed on the web interface. If the value sent is 0,
then no reset occurs; if the value sent is 1, then the runtimes are reset.
• nviSysTime is a time stamp to set the date and time. Writing to this variable changes the time on the device and
affects all time-related functions such as schedules.
• nviOutOverride is a structure (defined below) that overrides the digital and analog hardware outputs on the PSU1.
These values allow the network controller to directly control the analog and digital outputs of the board.
NOTE: the PSU1 makes no attempt to interpret the outputs; assigning meaningless outputs may have
unpredictable results.
Network Variable Inputs (NVIs)
Output Override Structure (NVI)
Internal Variable
Name
Format Range Description
nviOccCmd SNVT_occupancy N/A Legacy; not used
nviResetRuntime SNVT_lev_disc 0 = no reset
1 = reset runtimes
Resets the pump run-
times
nviSysTime SNVT_time_stamp Date/Time System time
nviOutOverride Structure Structure Output override
Name Type/Range Default Description
digOut[8] Unsigned Byte:
0=OFF
1=ON
0xFF=no override
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
digOut[0] = TO1 (pin 31)
digOut[1] = TO2 (pin 29)
digOut[2] = TO3 (pin 28)
digOut[3] = TO4 (pin 26)
digOut[4] = TO5 (pin 25)
digOut[5] = TO6 (pin 23)
digOut[6] = TO7 (pin 22)
digOut[7] = TO8 (pin 20)
aOut[4] SNVT_lev_percent:
0% to 100%
32767=no override
32767
32767
32767
32767
aOut[0] = AO 0 (pin 37)
aOut[1] = AO 1 (pin 35)
aOut[2] = AO 2 (pin 34)
aOut[3] = AO 3 (pin 32)
fpOut[4] SNVT_lev_percent N/A Not used
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