Checking The Network Status; Checking With The Buffer Memory - Mitsubishi Electric MELSEC iQ-R Series User Manual

5.3

Checking the Network Status

The PROFINET network status can be diagnosed by checking the buffer memory or using the network diagnostics of GX
Configurator-PN.

Checking with the buffer memory

The connection status and error details of IO devices can be checked.
Connection status of IO devices
The connection status of IO devices can be checked with the corresponding bit of 'IO device communication status'
(Un\G17153 to Un\G17160) and 'IO device error' (Un\G17161 to Un\G17168).
'IO device
communication status'
(Un\G17153 to
Un\G17160)
OFF
ON
OFF
ON
Error details of IO devices
The error details of IO devices can be checked with the corresponding bit of 'IO device error details' (Un\G21858 to
Un\G21921).
'IO device 'IO device error'
communication (Un\G17161 to
status' U\G17168)
(Un\G17153 to
Un\G17160)
ON OFF
ON ON
ON ON
ON ON
ON ON
OFF ON
OFF ON
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5.3 Checking the Network Status
'IO device error'
(Un\G17161 to U\G17168)
OFF
OFF
ON
ON
'IO device error Error details of IO devices
details'
(Un\G21858 to
Un\G21921)
00H No error has occurred.
01H The IO device is in the stop mode.
02H The IO device has received incorrect data in I/O data
exchange.
03H The IO device has sent incorrect data in I/O data
exchange.
04H The IO device configuration set in GX Configurator-PN is
different from the actual IO device configuration.
Diagnostic information is detected on the IO device to be
connected at the start of communications.
64H The IO device has not responded to the DCP identification
request.
The name of the IO device set in GX Configurator-PN has
not been found in the network.
65H Multiple IO devices have the same name.
Multiple IO devices have responded to the DCP
identification request.
Connection status of IO devices
The IO device is not connected. Otherwise, no connection request is received.
The IO device is correctly connected.
The IO device is not connected.
• When the setting of 'IO device data exchange start method setting area' (Un\G17001 to
Un\G17008) is off (I/O data exchange automatic start): The IO device cannot be
connected.
• When the setting of 'IO device data exchange start method setting area' (Un\G17001 to
Un\G17008) is on (I/O data exchange manual start): The last connection request failed to
be received.
An error has occurred in the connected IO device.
Action

Refer to the manuals of the IO
device.
Check the network
configuration setting of GX
Configurator-PN. ( Page
77 Network configuration
settings)
Check the status of the IO
device, and eliminate the error
cause.
Refer to the manuals of the IO
device.
Check the duplicated name of
the IO device. ( Page 75
"Devices on the Network"
window)