3 System-defined Variables Related to the Built-in EtherNet/IP Port
3-18
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Hierarchical Relationship of System-defined Variables Related to EtherNet/IP Errors in the
NX-series CPU Unit
The system-defined variables that are related to EtherNet/IP errors have the following hierarchi-
cal relationship. For example, if the value of any of the _EIP1_PortErr, _EIP2_PortErr, EIP1_Ci-
pErr, _EIP2_CipErr, and _EIP_TcpAppErr variables in the second level is TRUE, then the
_EIP_ErrSta variable in the first level also changes to TRUE. Therefore, you can check the val-
ues of system-defined variables in a higher level to see if an error has occurred for a variable in
a lower level.
Note You can access the same values of the system-defined variables whose variable names with _EIP1
and the system-defined variables whose variable names with _EIP. For example, you can access the
same values of _EIP1_PortErr (Communications Port1 Error) and _EIP_PortErr (Communcations
Port Error).
Note You can use the system-defined variables whose variable names with _EIP2 only for the NX701 CPU
Units.
Level 1 Level 2 Level 3
Variable Name Variable Name Variable Name
_EIP_ErrSta Built-in
EtherNet/IP
Error
_EIP1_Po
rtErr
Communica-
tions Port1
Error
_EIP1_MacAdrErr Port1 MAC Address Error
_EIP1_LanHwErr
Port1 Communications Controller Error
_EIP1_EtnCfgErr Port1 Basic Ethernet Setting Error
_EIP1_IPAdrCfgErr Port1 IP Address Setting Error
_EIP1_IPAdrDupErr Port1 IP Address Duplication Error
_EIP1_BootpErr Port1 BOOTP Server Error
_EIP_DNSCfgErr DNS Setting Error
_EIP_DNSSrvErr DNS Server Connection Error
_EIP_IPRTblErr IP Route Table Error
_EIP2_Po
rtErr
Communica-
tions Port2
Error
_EIP2_MacAdrErr Port2 MAC Address Error
_EIP2_LanHwErr
Port2 Communications Controller Error
_EIP2_EtnCfgErr Port2 Basic Ethernet Setting Error
_EIP2_IPAdrCfgErr Port2 IP Address Setting Error
_EIP2_IPAdrDupErr
Port2 IP Address Duplication Error
_EIP2_BootpErr Port2 BOOTP Server Error
_EIP_DNSCfgErr DNS Setting Error
_EIP_DNSSrvErr DNS Server Connection Error
_EIP_IPRTblErr IP Route Table Error
_EIP1_Ci-
pErr
CIP Communi-
cations1 Error
_EIP1_IdentityErr
CIP Communications1 Identity Error
_EIP1_TDLinkCfgErr CIP Communications1 Tag Data
Link Setting Error
_EIP1_TDLinkOpnErr CIP Communications1 Tag Data
Link Connection Failed
_EIP1_TDLinkErr CIP Communications1 Tag Data
Link Communications Error
_EIP1_TagAdrErr CIP Communications1 Tag Name
Resolution Error
_EIP1_MultiSwONErr CIP Communications1 Multiple
Switches ON Error
_EIP2_Ci-
pErr
CIP Communi-
cations2 Error
_EIP2_IdentityErr
CIP Communications2 Identity Error
_EIP2_TDLinkCfgErr CIP Communications2 Tag Data
Link Setting Error
_EIP2_TDLinkOpnErr CIP Communications2 Tag Data
Link Connection Failed
_EIP2_TDLinkErr CIP Communications2 Tag Data
Link Communications Error
_EIP2_TagAdrErr CIP Communications2 Tag Name
Resolution Error
_EIP2_MultiSwONErr CIP Communications2 Multiple
Switches ON Error
_EIP_Tc-
pAppErr
TCP Applica-
tion Communi-
cations Error
_EIP_TcpAppCfgErr TCP Application Setting Error
_EIP_NTPSrvErr NTP Server Connection Error