Manual

WI-I/O 9-x_WI-I/O-EX-1-S-x 2.16 Page 79
concern of wave action on the surface of the tank causing un-necessary change transmissions. This
debounce time will also operate on the Pulse Rate value, but as the flow rate changes slowly, this
will not affect the performance of this signal.
• SETPOINT1 (the set-point status for AI1) is mapped to DO2 of #1 (pump station). The set-point
values for this setpoint have been set to 40% and 75%. When the tank level drops to 40%, DO2 at
the pump station will activate to start the pump. When the level rises above 75%, DO2 will reset to
stop the pump.
• The update time for SETPOINT1 has been changed to 5 minute, as required.
• An additional mapping has been entered - LOW VOLT has been mapped to DO7 at #94 via #1
(DO7 at the control station). This mapping is for future use - it will provide a low battery voltage
alarm for the tank station. The update time for this mapping has been set to the maximum time of 15
minutes to reduce loading of the radio channel.
• A Start-up poll has been configured for #1, as DO1 at the tank station is controlled from the pump
station. Note that no comms fail reset time has been configured for DO1. As this output drives an
indication only, the indication will show the last correct status even during communication failures.
Pump Station Configuration
The WI-I/O 9-1 module has the following configuration :-