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8-3
8 CIP Message Communications
NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User’s Manual (W563)
8-1
Overvie
w
o
f t
h
e CIP Mess
age Co
mm
un
icatio
ns Service
8
8-1
-1 Ove
rview o
f the CIP
Message Communication
s Ser
vice
8-1
Overview of the CIP Message
Communications Service
CIP commands can be sent to devices on the EtherNet/IP network whenever they are required. You
execute CIP_SEND instructions in a program in the NY-series Controller to send CIP commands, such
as those to read and write data and to receive the responses.
You can use CIP messages from the client to read and write memory in the Controller with the server
without adding any special programming to the user program of the Controller with the server.
8-1-1
Overview of the CIP Message Communications Service
8-1-2
Message Communications Service Specifications
Item
Specification
Message type
Either of the following can be selected.
CIP UCMM connectionless messages
CIP class 3 connection messages
Execution method
CIPSend (Send Explicit Message Class 3) instruction or CIPUC-
MMSend (Send Explicit Message UCMM) instruction
Data contents
Sending required CIP commands and receiving responses
Communications parameters
Message type, timeout value, and root path specification
Maximum length
per connection
Non-connection
type (UCMM)
502 bytes
Connection type
(class 3)
•
Using Forward_Open
502 bytes
•
Using Large_Forward_Open
8192 bytes
EtherNet/IP
Built-in
EtherNet/IP
port
CIP response
CIP command
Built-in
EtherNet/IP
port
NY-series
Controller
NJ/NX/NY-series
Controller
EtherNet/IP
Built-in
EtherNet/IP
port
CIP response
CIP command
or host computer
Built-in
EtherNet/IP
port
NJ/NX/NY-series
Controller
NY-series
Controller
Summary of Contents for Sysmac NY512-1300
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