3 System-defined Variables Related to the Built-in EtherNet/IP Port
3-2
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
3-1 System-defined Variables Related to
the Built-in EtherNet/IP Port
You can use the system-defined variables that are provided for the built-in EtherNet/IP port in programs
to check the status of the built-in EtherNet/IP port.
z Checking for Errors in the Built-in EtherNet/IP Port
You can check for built-in EtherNet/IP port errors, Sysmac Studio setting errors, Network Configura-
tor setting errors, TCP/IP application errors (e.g., FTP or NTP), etc. The following hierarchy is used.
The system gives the error status at each level by logically ORing the error status information in the
next lower level.
Error status variable for
TCP/IP application function
Error status variable for
CIP communications
Error status variable for
communications port
Error status variable for EtherNet/IP Function Module
TCP/IP Setting Error
NTP Server Connection Error
Identity Error
Tag Data Link Setting Error
Tag Data Link Connection Failed
Tag Data Link Communications Error
Multiple Switches ON Error
Tag Name Resolution Error
MAC Address Error
Communications Controller Error
IP Address Duplication Error
Basic Ethernet Setting Error
TCP/IP Basic Setting Error
TCP/IP Advanced Setting Error
BOOTP Server Error
DNS Server Connection Error
_EIP_TcpAppErr
_EIP_TcpAppCfgErr
_EIP_NTPSrvErr
_EIP_IdentityErr
_EIP_TDLinkCfgErr
_EIP_TDLinkOpnErr
_EIP_TDLinkErr
_EIP_MultiSwONErr
_EIP_TagAdrErr
_EIP_CipErr
_EIP_MacAdrErr
_EIP_LanHwErr
_EIP_IPAdrDupErr
_EIP_EtnCfgErr
_EIP_IPAdrCfgErr
_EIP_IPRTblErr
_EIP_BootpErr
_EIP_DNSSrvErr
_EIP_PortErr
_EIP_ErrSta
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