Omron ZEN User Manual

130
Ladder Program Execution Appendix B
Cycle Time Calculation Method
Refer to the following table for ZEN execution times. The execution times are provided
as a guide. External factors, button operations, execution of ZEN Support Software
operations, and timing of the processing affects the actual processing times.
Common Processing Time
Expansion I/O Unit Processing Time
Communications Processing Time (only for CPU Units with Communications)
Cycle
time
(
µs)
= Common
processing
time
+ Processing time
taken when
Expansion I/O Units
are connected
+ Ladder
program
execution time
+ Communications
processing time
(only for CPU Units
with
communications)
Unit type Common processing time
Standard LCD-type CPU Units,
Economy-type CPU Units, and
Communications-type CPU Units
850
µs
LED-type CPU Units 200
µs
Unit type Expansion I/O Unit processing time
Expansion I/O Units 160
µs per Unit
Reading information 170 µs
Writing set values Twin timer: 11,000 µs
Others: 6,000
µs
Writing time information 820 µs
Z211-E1-03.book Page 130 Friday, November 21, 2008 10:38 AM

Omron ZEN Specifications

General

Display	LCD
Mounting Type	DIN Rail
Operating Temperature	-10 to 55°C
Power Supply Voltage	100-240V AC
Output Type	Relay, Transistor
Number of Outputs	4-8
Programming Language	Ladder Logic