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3 Assigning Device Variables for CJ-series Units
3-2
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
3-1
Data Exchange with the CPU Unit
Data exchange between the EtherNet/IP Unit and CPU Unit is performed with the I/O ports that are
assigned to the EtherNet/IP Unit and, if required, the memory used for CJ-series Units.
Refer to 3-2 Device Variables for the CJ-series Unit for information on I/O ports.
The exchange of data between the CPU Unit and the EtherNet/IP Unit is described in the following table
and figure.
Types of Data Exchange
*1
The target PLC operating and error information, Unit status, communications status, registered/normal target
nodes, and FINS/TCP connection status are sent as status.
*2
The target PLC operating and error information and the registered/normal target node table are sent as status.
3-1-1
Data Flow
Access method from
the user program
AT specification
Timing of data exchange
Classification of Unit data
Device variables for CJ-
series Unit
I/O ports for oper-
ating data
During I/O refreshing
Software switches
Status
*1
I/O ports for setup
data
During I/O refreshing
IP address display/setting area
User-defined variables
Memory used for
CJ-series Units
During I/O refreshing
Status
*2
User program
I/O ports
Operating data
Setup data
NJ-series CPU Unit
Device variable
for CJ-series Unit
EtherNet/IP Unit
Device variable
for CJ-series Unit
Software switch
or status
AT
specification
Local memory
Software
switch
Status
Local memory
Local memory
Local memory
Local memory
Unit settings
Non-volatile memory
in EtherNet/IP Unit
Set with the
Sysmac Studio.
IP address display
/setting area
User-defined
variable
User-defined
variable
Status
Device parameter settings
(e.g., tag data link settings)
Status
Set with the
Network Configurator.
AT
specification
Tag data link (target connection)
Tag data link (originator connection)
AT
specification
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: ......