Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 714

Error Error name
code
1A51H Device
mismatch in
safety
communication
destination
station
APPX
712
Appendix 1 Error Codes
Error details and cause
• The model or production
information on the safety
communication destination station
is incorrect.
• The device actually connected to
perform safety communications
and the device set in the network
configuration settings do not
match.
Stop/ Action
continue
Continue ■SIL2 Process CPU
• Check the detailed information (safety
station system configuration
information) of the error by executing
module diagnostics using the
engineering tool and check the
displayed station number. Then, match
the connected device and the device
set in the network configuration
settings.
• Write parameters to the safety
communication destination station and
the CPU module. If the same error
code is displayed again, the possible
cause is a hardware failure of the data
memory in the CPU module or the
module performing safety
communications. Please consult your
local Mitsubishi representative.
■Safety CPU
• Check the detailed information (system
configuration information) of the error
by executing module diagnostics using
the engineering tool and check the
displayed station number. Then, match
the connected device and the device
set in the network configuration
settings.
• Write parameters to the safety
communication destination station and
the Safety CPU. If the same error code
is displayed again, the possible cause
is a hardware failure of the Safety CPU
data memory or the module performing
safety communications. Please consult
your local Mitsubishi representative.
Detailed Diagnostic
information timing
System At interrupt
configuration occurrence
information,
safety station
system
configuration
information