Plc Bit Selection - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
16 Machine Parameters

16.16 PLC Bit Selection

(Note) Even if the data is set in the R register(R7800 to R7897) that corresponds to the PLC side when this parameter
is displayed, the screen will not change.Enter a different screen once, and then select this screen again.
#6449 to #6496 are PLC operation parameters used by MITSUBISHI.
Refer to the PLC Development Manual and the PLC Programming Manual for details.
#6401-6448 R7800-Low - R7823-High
These bit type parameters are used in the user PLC (ladder).
#6449 R7824-Low
bit7: Control unit thermal alarm valid
bit6: Setting and display unit thermal management valid (This function may not be available for some NC
models.)
bit5: Set to "0".
bit4: Battery alarm/warning detection disabled
(Note) When the parameter is set to "1", the "Battery alarm" signal and the "Battery warning" signal will
not be turned ON, and the alarm messages will not be displayed.
bit3: Counter C retention
bit2: Integrated timer ST retention
bit1: PLC counter program valid
bit0: PLC timer program valid
#6450 R7824-High
bit7: Set to "0".
bit6: External alarm message display (This function may not be available for some NC models.)
bit5: Alarm/operator change (This function may not be available for some NC models.)
bit4: Full screen display of message (This function may not be available for some NC models.)
bit3: Set to "0".
bit2: Operator message valid
bit1: Alarm message display interface
1: R method
0: F method
bit0: Alarm message valid
#6451 R7825-Low
bit7-4: Set to "0".
bit3:
[M8]
Set to "0".
[C80]
Select the key input switch setting.
0: Key code is processed without going through the sequence program.
1: Key code is processed through the sequence program.
(Note) When this parameter is 1, key data is set in KEYOUT(R212) through a sequence program, and
is enabled. Even if the key data is not changed through a sequence program, make sure to loop-back
the key data read from KEYIN(R8) of the NC to R212 of the PLC. Without this loop-back, the key be-
comes disabled. If the program on the PLC side is at a stop (including a case when STOP is selected
by the RUN/STOP switch), key data does not go through the PLC.
bit2: Built-in edit function edit invalid (This function may not be available for some NC models.)
bit1: Set to "0".
bit0: Built-in edit function valid (This function may not be available for some NC models.)
Bit selection
Bit selection
Bit selection
Bit selection
631 IB-1501279-H