Automatic control function programming manual ladder language

Example
5.2.2.4 Timeouts
Three types of timeout function blocks are available:
- Off timeouts TOF_n
- On timeouts TON_n
- Pulse timeouts TP_n.
There are a total of 128 available timeouts (all types together).
Variables %T0.L to %T7F.L contain the current timeout in ms. Only size .L is allowed for read and write by UNITE.
Variables %TQ0.7 to %TQ7F.7 are the image of the timeout output (Q). Only bit .7 is allowed for read and write by
UNITE.
Timeout type Description
TOF_n() Off timeout (with n = 00 to 7F)
Setting of E sets output Q for an indeterminate time. Reset of E
E Q
resets output Q at the end of the timeout. The threshold argument is
a numerical expression in ms.
TON_n() On timeout (with n = 00 to 7F)
Setting of E sets output Q at the end of the timeout. Q is reset as
E Q
soon as E is reset. The threshold argument is a numerical
expression in ms.
TP_n() Pulse timeout (with n = 00 to 7F)
Setting of E sets output Q for the duration of the timeout. Q is reset
E Q
at the end of the timeout. The threshold argument is a numerical
expression in ms.
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