FACTS Engineering Direct Logic 405, Manual

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SUPPORTING LADDER LOGIC 3.4
DISCRETE OUTPUT STATUS
The status of the discrete time proportioned solid state relay outputs built into the Temperature Controller
is also written to bit 15 of the Alarm Word. This allows you to use an AC Output or High Current Relay
Output module in the PLC to directly control, for example, a heater.
The following example copies the output status from the Alarm Words of all four loops to the discrete
outputs Y10 to Y13.
NEGATIVE TEMPERATURES
The following example is useful if you are working with negative temperatures. It simplifies the viewing
of a negative number. The example converts the magnitude plus sign temperature indication to a
magnitude only value and places it in an alternate V-Memory location. If your loop does not start at
V5000 then you need to change the V-Memory reference accordingly.