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MELSEC-Q
3 SPECIFICATIONS
(6) Transient transmission enabled even at CPU module error
By using this function, the network module can continue the transient
transmission even if an error that stops the CPU module occurs while the system
is operating.
The description of the error of the corresponding station can be checked from
other stations using GX Developer.
OPERATION ERROR
GX Develope
r
QCPU QJ71
LP21
QJ72
LP25
QJ72
LP25
Power supply
QJ72
LP25
Power supply
Power supplyPower supply
The following table lists the operations of the cyclic and transient transmissions
for each CPU module status.
CPU module status
Cyclic transmission Transient transmission
Rank
Battery error
Annunciator error ON, etc.
(Continue error)
Minor error Continued Enabled
Parameter error
Instruction code error, etc.
(Stop error)
Medium
error
Stopped Enabled
CPU reset, etc.
(MAIN CPU down)
Major error Stopped Disabled
: Accessing the remote master station from GX Developer or like using the transient function
will result in a communication error.