Mitsubishi Electric Melsec iQ-R Series User Manual page 52

Ex.
The following shows an example of when the 17th error occurs. The 17th error is stored in Error history 1, and 'Latest address
of error history' (Un\G1) is overwritten with the value 3600 (start address of Error history 1).
'Latest address of error history'
(Un\G1): 3600
Un\G3600
Un\G3610
Un\G3620
Un\G3750
• Once the error history storage area becomes full, subsequent error information will overwrite the existing
data, starting from Error history 1 (Un\G3600 to Un\G3609), and the overwriting continues sequentially
thereafter. The overwritten history is deleted.
• The same processing is performed for Alarm history when an alarm occurs.
• The stored error history is cleared when the A/D converter module is powered off, or when the CPU module
is reset.
1 FUNCTIONS
50
1.11 Error History Function
Error history 1
1st error
Error history 2
2nd error
Error history 3
3nd error
Error history 16
16nd error
Latest
17th error