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8-3
8 Message Communications
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
8-2 Using
CIP Messa
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8-2
Using CIP Message Communications
CIP communications instructions can be executed in the user program in the NJ-series CPU Unit to
read and write variables in a NJ-series CPU Unit or a CJ2 CPU Unit on the EtherNet/IP network, and
send specified CIP commands.
The following CIP communications instructions are available. For details on CIP communications
instructions, refer to the NJ-series Instructions Reference Manual (Cat. No. W502).
8-2-1
Overview
8-2-2
CIP Communications Instructions
Instruction
Name
Description
Communica-
tions method
CIPUCMMRead
Read Variable
UCMM Explicit
Reads the value of a variable with a Network Publish attribute from
the specified remote Controller on the CIP network and stores the
value in a variable at the local Controller.
CIP UCMM
connectionless
messages
CIPUCMMWrite
Write Variable
UCMM Explicit
Writes the value of a variable at the local controller to a variable
with a Network Publish attribute at the specified remote Controller
on the CIP network.
CIPUCMMSend
Send Explicit
Message
UCMM
Sends a specified CIP command to the specified remote Controller
on the CIP network.
Refer to 8-2-9 Response Codes and 8-3 CIP Objects Sent to the
EtherNet/IP Unit for information on the service codes and response
codes that are used with the NJ-series CPU Units.
NJ-series
CPU Unit
Specify the CIP communications parameters,
such as the route path, as well as the service
code, the request path, and the service data.
NJ-series
CPU Unit
EtherNet/IP Unit
Specify a variable name.
EtherNet/IP
CIP_SEND
EtherNet/IP Unit
CIP command
Содержание SYSMAC CJ1W-EIP21
Страница 8: ...Manual Structure 6 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 10: ...Sections in this Manual 8 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 20: ...Read and Understand this Manual 18 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 42: ...Revision History 40 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 68: ...1 Introduction 1 26 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 80: ...2 Installing Ethernet Networks 2 12 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 130: ...6 Testing Communications 6 4 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 206: ...7 Tag Data Link Functions 7 76 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 246: ...8 Message Communications 8 40 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 266: ...9 FTP Server 9 20 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 374: ...13 Troubleshooting 13 56 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 431: ...Index 1 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495 I Index...
Страница 436: ...Index 6 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495 Index...
Страница 437: ......