Mitsubishi Electric MELSEC-A Series User Manual page 29

Bit number
b0 When PV exceeds the specified temperature measurement range in the in-
put range
b1 When PV is below the specified temperature measurement range in the in-
put range
b2
When the hardware error occurs
b3
b4
b5
Unused
b6
b7
b8 When alert alarm 1 is turned on
b9 When alert alarm 2 is turned on
b10 When alert alarm 3 is turned on
b11 When alert alarm 4 is turned on
b12 When the heater disconnection alarm is detected
b13 When the loop disconnection is detected
b14 When the "current error when the output is off " is detected
b15 Unused
Point
(1) The "ALM" LED can be turned off for channels not used for the
temperature adjustment (platium temperature-measurement resistor is
not connected), by writing "1" in the following buffer memory address:
· CH1 : 3D
· CH2 : 5D
· CH3 : 7D
· CH4 : 9D
H
H
H
H
A-6
Alert details