Checking The Status Of Ethernet/Ip - Mitsubishi Electric MELSEC iQ-R Series User Manual

17.2

Checking the Status of EtherNet/IP

The EtherNet/IP network status can be checked with the buffer memory.
Checking the status of Class1 communications
The status of the Class1 communication connections and the error details can be checked with the following buffer memory
areas.
• 'Class1 data link status' (Un\G7734272 to Un\G7734287)
• 'Class1 error status' (Un\G7734288 to Un\G7734303)
• 'Class1 connection error status' (Un\G7734528 to Un\G7735551)
■Status of each connection
The connection status of each connection can be checked with the bit corresponding to each connection in 'Class1 data link
status' (Un\G7734272 to Un\G7734287) and 'Class1 error status' (Un\G7734288 to Un\G7734303).
'Class1 data link status'
(Un\G7734272 to Un\G7734287)
Off
On
Off
For details on the buffer memory, refer to the following.
Page 493 Class1 communication status
■Error details of each connection
The error code of each connection can be checked with 'Class1 connection error status' (Un\G7734528 to Un\G7735551).
For details on the buffer memory, refer to the following.
Page 494 Class1 connection error status (Un\G7734528 to Un\G7735551)
For error code descriptions, refer to the following.
Page 435 Error Codes When a Connection Error Occurs
PING test
A PING test is used to check that an EtherNet/IP device exists on the same EtherNet/IP network.
The CC-Link IE TSN Plus module transmits a packet to the EtherNet/IP device to check its existence (an echo request). Then,
the CC-Link IE TSN Plus module checks whether communication is possible by seeing whether a response (an echo
response) is returned.
(1) Echo request
(2) Echo response
■Check method
Execute a PING test by operating a program that uses the buffer memory.
For the program example of PING tests, refer to the following.
Page 344 Program Example of PING Test
■Checking the result
The result of a PING test can be checked with 'PING test response area' (Un\G7340052 to Un\G7340064). ( Page 434
Error codes when a PING test error occurs)
'Class1 error status' (Un\G7734288
to Un\G7734303)
Off
Off
On
(1)
(2)
Status of each connection
Not connected or data link not in operation.
Data link in operation.
No error has occurred.
Error has occurred with data link not in operation.
17 CHECKING THE NETWORK STATUS
17.2 Checking the Status of EtherNet/IP
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