5 Function blocks
5.31 ST, Set cycle time
254
Control Relay easy800
11/11 MN04902001Z-EN
www.eaton.com
Function of the function block
The function block is used to define a fixed cycle time.
Cycle time less than set cycle time:
If the maximum cycle time present is less than the set cycle time, the set
cycle time is constant.
Actual cycle time greater than set cycle time:
If the cycle time present is greater than the set cycle time, the set cycle time
has no effect.
→
The function block must be enabled so that it can work. Coil
ST01EN is active. If coil ST01EN is not active, the entire function
block is deactivated and reset.
Memory
24 + per
4 Byte/Constant at function block input
Cycle time
Memory
24 + per
4 Byte/Constant at function block input
Cycle time [
μ
s]
easy800 standard
easy800-SWD
Remaining time up to set
time
Remaining time up to set
time
CAUTION
The shorter the cycle time, the faster the control and regulation
process.
Set as small a value for the set cycle time as possible. The
processing of the function blocks, reading of the inputs and
writing of outputs is only carried out once every cycle.
Exception: All function blocks that are processed independently
of the cycle time.