Phoenix Contact PSRmodular - Figure 5-26 ENABLE Function Block; Figure 5-27 Time Diagram for Manual Reset (Left) and Monitored Reset (Right)

PSRmodular system
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PHOENIX CONTACT 109241_en_03
5.1.2.5 ENABLE function block
The function block checks the status of the “I
N” inputs of a key switch. If the switch is not ac-
tivated, the “OUT” output is logic “0”. Otherwise, the output is logic “1”.
Figure 5-26 “ENABLE” function block
Parameters
Manual Reset If this option is selected, a reset must be performed manually every time the function block
is activated. Otherwise, the activation of the output directly follows the state of the inputs.
Reset Type There are two types of reset: “Manual” or “Monitored”. If the “Manual” option is selected, only
the signal transition from “0” to “1” is checked. In the case of the “Monitored” option, the dou-
ble transition from “0” to “1” and back to “0” is checked.
Figure 5-27 Time diagram for “Manual” reset (left) and “Monitored” reset (right)
MANUAL
RESET
OUTPUT
t = 250 ms
t
MONITORED
RESET
OUTPUT
t2 = 250 ms
5 s > t1 > 250 ms
t1
t2