JUMO LOGOSCREEN 500 Operating Instructions Manual page 22

2 Instrument description
Logic module
H
20
There is also a maximum of 6 logic channels.
As is the case with all the other digital signals, the calculated digital (boolean)
values can be used for different functions:
- recording in the event traces,
- as an operating signal for display switch-off,
- time synchronization,
- timer,
- externally operated counters / integrators,
- counter/integr. reset,
- event operation and key inhibit,
- for output to a relay and
- as count input for a counter.
The following variables are available for the formulae:
- logic inputs
- logic channels
- alarms
- errors
- Modbus-Flag (signal via serial interface)
- TRUE
- FALSE
- instrument-specific data (only after consultation with the manufacturer)
The functions below can be used for the formulae:
- ! (NOT)
- & (AND)
- | (OR)
- ^ (XOR)
- / (rising edge)
- \ (falling edge)
- ( (open bracket)
- ) (close bracket)
For additional information, see
Chapter 5.4 "Math and logic module"