P4 - problem with multiple level sensors using Y splitter PL-LY

[OzFisho]

Greetings from Australia!

I have recently purchased a new Profilux4 along with a Powerboard 5.1, 2 optical and 2 float level sensors, a leak detector module and 2 sensors, and 2 Y-splitter cables (PL-LY).

The level and leak sensors work fine when plugged individually into the two level sensor ports (purple and green), however when I plug two sensors via the Y splitter they do not work properly and seem to require both sensors to be activated to trigger an action.

For example, if I plug one level sensor direct into the purple input and set up Control Circuit 1 to operate as a single-sensor ATO using sensor #1 and linked to Switch Channel 1, then socket 1 on the powerbar correctly activates when the sensor is in a triggered state, and turns off when the sensor is not in a triggered state. If I plug a 2nd sensor into the green input and set up a different Control Circuit using sensor #3 it also works fine, and it does not cause any problem to the functionality of Control Circuit 1.

However, I if use the PL-LY to plug two level sensors into the purple socket, Control Circuit 1 will not activate unless BOTH sensors are in a triggered state, and will not turn off until both sensors are untriggered.

Setting up two Control Circuits to use two sensors connected via the PL-LY (one using sensor #1 and the other using sensor #2), results in only Control Circuit 1 working when both sensors are triggered, and Control Circuit 2 not working at all.

The problem occurs regardless of which sensor/s or the leak detector module is used - if two sensors of any type or combination are plugged into either the green or purple ports using a PL-LY cable, nothing will work unless both those sensors are triggered at the same time.

I have tried all possible combinations of sensors on both PL-LY cables (eg 2 float, 2 optical, 1 float and 1 optical, 1 float and 1 leak detect etc) but the problem persists. If I only plug one sensor of any type into the purple port and one sensor of any type in the green port, everything seems to work fine.

Any help in resolving this would be appreciated.

NB: The P4 arrived with firmware 7.07. After encountering the problem I updated it to 7.08 but the problem remains. I am also using Control Centre 1.1.0.0.


Thanks,
Stephen.