Omron SYSMAC CP Series User Manual

15-5
15 Ethernet
CP2E CPU Unit Software User’s Manual(W614)
15-1 System Configuration and Features
15
15-1-2 Exchanging Data between OMRON PLCs using Ethernet
Use the FINS/UDP, and construct applications using the SEND(090), RECV(098), and CMND(490)
instructions in the ladder program. The protocol processing for FINS/UDP is simpler than for FINS/TCP,
giving FINS/UDP certain advantages in terms of performance. Another feature of FINS/UDP is that it
can be used for broadcasting.
On the other hand, with FINS/UDP it is necessary to provide measures, such as retries, for handling
communications errors.
Use the FINS/TCP, and construct applications using the SEND(090), RECV(098), and CMND(490)
instructions in the ladder program. FINS/TCP is supported by many OMRON products and is compati-
ble with earlier OMRON Ethernet Units. It provides automatic recovery at the TCP/IP layer from com-
munications errors (such as packet loss) that occur during multilevel routing.
15-1-2 Exchanging Data between OMRON PLCs using Ethernet
Connecting within the Same Segment
Connecting through Multiple Segments
Intranet
Production line A
Ethernet Unit
Ethernet
Router
FINS message
communications
Connecting through multiple segments:
Use FINS/TCP.
Production line B
Router
FINS message
communications
CP2E-ND-
Connecting within the same segment:
Use FINS/UDP.
CP2E-ND-

Omron SYSMAC CP Series Specifications

General

Brand	Omron
Model	SYSMAC CP Series
Category	Computer Hardware
Language	English