Status - Mitsubishi Electric MELDAS C6 Programming Manual

12.3.3.2 Status

The status is set by the NC to indicate the execution status of this function command and the status of
the axis being controlled.
F E D C B A 9 8 7 6 5 4 3 2 1 0
R + 1
n
bit 0: busy Command processing
1: den Axis movement completed
2: move Axis moving
3: SA Servo ready
4: svon Servo ON
5: ZP Reference point reached
6:
7: WAIT Axis movement wait
bit 0: busy Command processing
This turns ON when the command is being processed.
The next command is not received while this bit is ON. The next command to be issued is
received while this bit is OFF.
Even if movement distance is microscopically small, at least 1 scan is turned ON.
bit 1: den Axis movement completed
This bit turns ON when the initialization and commanded movement are completed. This bit
stays OFF during movement, even when an interlock is applied. This bit turns ON at reset or
servo OFF, or when ACT = 0.
bit 2: move Axis moving
This bit turns ON when the machine is moving, and turns OFF when the machine is stopped.
When movement distance is microscopically small, PLC may be unable to detect having turned
ON.
bit 3: SA Servo ready
This bit turns ON when the servo is ready. It turns OFF during emergency stops and servo
alarms.
bit 4: svon Servo ON
This bit turns OFF when a servo OFF signal is output. It also turns OFF during emergency stops
and servo alarms.
Machine movement is possible when this signal is ON.
bit5: ZP Reference point reached
This bit turns ON when the reference point is reached after completion of a reference point
return.
It turns OFF when the machine moves.
bit7: WAIT Axis movement wait
This bit turns ON in the buffering mode when the axis movement of the previous block has been
completed, and the machine is in a WAIT 5 status. It turns OFF when the previous block
movement is completed and the movement of the next block begins.
12. PLC Axis Control
12.3 PLC Interface
bit 8 : oper
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Option error
9 :
A:
B:
C:
D:
E: ALM2 Axis in control alarm
F: ALM1 Control information data
designation alarm