Standard function blocks
320
02/16 MN05013001Z EN
Contact
The contact of the function block is likewise used in the
standard circuit diagram. A closed contact indicates:
Memory requirement
The timing relais function block requires 52 bytes of memory
plus 4 bytes per function block input configured with an NU
constant.
Retention
Timing relays can be run with retentive actual values. The
number of retentive timing relays can be selected in the
SYSTEM
r
RETENTION menu.
If a timing relay is retentive, the actual value is retained
when the operating mode is changed from RUN to STOP and
when the power supply is switched off.
If easySafety is started in RUN mode, the timing relay
operates with the retentively saved actual value. The state of
the trigger pulse must correspond to the function of the
timing relay.
• Status 1 with:
– On-delayed.
– Single pulse.
– Flashing.
• Status 0 with:
– Off-delayed.
Parameters
Function
T ..Q1
Time function active
Summary of Contents for easySafety
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