Omron CJ2 CPU UNIT SOFTWARE User Manual

12-9
12 CPU Unit Cycle Time
CJ2 CPU Unit Software User’s Manual
12-2 Computing the Cycle Time
12
12-2-3 I/O Unit Refresh Times for Individual Units
z Increase in Cycle Time Caused by CPU Bus Units
Name Model
Increase
Remarks
CJ2H CJ2M
Controller Link
Unit
CJ1W-CLK23 0.1 ms 0.2 ms The following additional time is required if data
links are used.
• CJ2H CPU Units: 0.1 ms + 0.7 µs × Number of
data link words
• CJ2M CPU Units: 0.1 ms + 1.2 µs × Number of
data link words
There will be an additional increase of the event
execution times when message services are
used.
Serial Commu-
nications Unit
CJ1W-SCU41-V1
CJ1W-SCU21-V1
CJ1W-SCU31-V1
CJ1W-SCU42
CJ1W-SCU32
CJ1W-SCU22
0.20 ms There will be an increase of up to the following
time when a protocol macro is executed:
• CJ2H CPU Units: 0.4 µs × maximum number of
data words sent or received (0 to 500 words)
• CJ2M CPU Units: 0.6 µs × maximum number of
data words sent or received (0 or more words)
There will be an increase of the event execution
times when Host Links or 1:N NT Links are used.
Ethernet Unit CJ1W-ENT11/21 0.1 ms 0.9 ms If socket services are executed with software
switches, there will be an increase of up to the fol-
lowing time
• CJ2H CPU Units: 1.4 µs × Number of bytes
sent/received
• CJ2M CPU Units: 0.17 µs × Number of bytes
sent/received
There will be an increase in the event execution
times when FINS communications services,
socket services for CMND instructions, or FTP
services are performed.
EtherNet/IP
Unit
CJ1W-EIP21 0.1 ms Add the following value when tag data links are
used.
CJ2H CPU Units
0.1 ms + Number of words transferred × 0.33 µs*
CJ2M CPU Units
0.1 ms + Number of words transferred × 0.70 µs*
If the message service is used, the event execu-
tion time must also be added.
FL-net Unit CJ1W-FLN22 0.25 ms + No.
of data link
words × 1.6 µs
0.25 ms + No.
of data link
words × 1.7 µs
The number of data link words is the number of
words of data sent and received by a node. If the
message service is used, the event execution
time must be added separately.
DeviceNet Unit CJ1W-DRM21 0.4 ms + 0.7 µs
for each allo-
cated word
0.4 ms + 0.4 µs
for each allo-
cated word
Include all words allocated to the slaves, including
unused ones.
For message communications, add the number of
communications words to the calculations as the
left.
Analog Input
Unit
CJ1W-ADG41 0.12 ms 0.15 ms ---

Omron CJ2 CPU UNIT SOFTWARE Specifications

General

Brand	Omron
Model	CJ2 CPU UNIT SOFTWARE
Category	Software
Language	English