Using the PLC Interface

The compact will accept the following input on its AUX connector if PLC reading is enabled:

:a,bbbb.bb,c,d,eeeeeeeeeeeeeeee;

PLC reading is enabled using the installers menu and changing the 'AUX Function' to P.L.C

* a comma separates each of the fields

e.g. :3,0012.50,L,0, 1234;
Meaning deliver 12.5 litres for job number 1234 from valve 3 immediately.
Once delivery is complete (or canceled) the Compact would transmit the following output:

:a.bbbb.bb,c,d,eeeeeeeeeeeeeeee;

Where field 3 is changed to reflect the actual amount delivered and field 5 is changed to give a status code (0 = OK, 1 = User canceled and 2 = No-Flow timeout).

The AUX. communications port settings are fixed at:

[FAQ Index]

[Moving computers]

[Backup configuration]

[Reinstalling Oilwatch]

[Second contacts use]

[Barcode scanner option]

[Keypad firmware upgrade]

[Using the PLC option]

[Fibre-optic Signalling]

[R.F. Modem Links]