CanTech
20
Each user alarm consists of logical operations between individual operands. Using the timer
function, signals can be delayed (it used max. 8 timers). Based on the evaluation of the user alarm
sends a trap, mail or switches associated output. Alarm is evaluated from left to right and
parentheses indicate priority.
As an operand can be used:
-
Alarm … status of the binary input
-
Value alarm … limits of measured values
-
Error … measurement error
-
Limits … custom alarm limits
-
Custom alarm … another user alarm
Timer function are (dT – duration in seconds):
-
FTON(dT) … delay of rising edge
-
FTOFF(dT) … delay of falling edge
-
FPULS(dT) … pulse after rising edge
dT
input
output
dT
input
output
dT
input
output
