Справочник Пользователя для Omron CJ1W-EIP21
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Overview
Section 7-1
7-1
Overview
The message communications functions send command/response messages
between nodes on the Ethernet network. The messages can be sent between
a computer and PLC, between two PLCs, between an OMRON PLC and a
master made by another company, or between slaves. The messages can be
used to send/receive data; read time data, error logs, and other data; or con-
trol operation, e.g., by force-setting/resetting bits.
between nodes on the Ethernet network. The messages can be sent between
a computer and PLC, between two PLCs, between an OMRON PLC and a
master made by another company, or between slaves. The messages can be
used to send/receive data; read time data, error logs, and other data; or con-
trol operation, e.g., by force-setting/resetting bits.
There are two types of messages: FINS messages and explicit messages.
Item
FINS messages
Explicit messages
Outline
Message communications for
OMRON products that use the
FINS protocol.
OMRON products that use the
FINS protocol.
Standard ODVA message communi-
cations using the CIP protocol.
cations using the CIP protocol.
Remote
device
device
• Computer with an Ethernet inter-
face
• OMRON PLCs (with a CS/CJ-
series EtherNet/IP Unit, built-in
EtherNet/IP port, or Ethernet
Unit)
EtherNet/IP port, or Ethernet
Unit)
• Computer with an Ethernet inter-
face
• Another company’s masters or
slaves.
• OMRON PLCs (with a CS/CJ-
series EtherNet/IP Unit or built-in
EtherNet/IP port)
EtherNet/IP port)
Features
• Send and receive the various
FINS commands to provide an
even greater range of services
than the CIP UCMM messages.
even greater range of services
than the CIP UCMM messages.
• Provide transparency in mes-
sage communications with other
OMRON networks, such as Con-
troller Link, SYSMAC LINK, and
Ethernet.
(CS1/CJ1 CPU Units with unit
version 2.0 or later or CJ2 CPU
Units: Up to 8 levels, CPU Units
with unit version earlier than 2.0:
Up to 3 levels)
OMRON networks, such as Con-
troller Link, SYSMAC LINK, and
Ethernet.
(CS1/CJ1 CPU Units with unit
version 2.0 or later or CJ2 CPU
Units: Up to 8 levels, CPU Units
with unit version earlier than 2.0:
Up to 3 levels)
• Supports message communica-
tions with other companies’ Ether-
Net/IP devices.
Net/IP devices.
CS/CJ Series
• CS1W-EIP21
• CJ1W-EIP21
• CJ2H-CPU
• CJ1W-EIP21
• CJ2H-CPU
@@
-EIP
• CJ2M-CPU3
@
Message communications functions
FINS communications function
Explicit message
communications function
communications function
Send
Receive
Send
Receive