Mitsubishi Electric A173UHCPU Programming Manual page 57

3. POSITIONING SIGNALS
(5) System setting error flag (M2041) .................... Signal sent from PCPU to SCPU
When the power is switched ON, or when the servo system CPU is reset, the
system setting data set with a peripheral device is input, and a check is
performed to determine if the set data matches the module mounting status (of
the CPU base unit and extension base units).
• ON............. Error
• OFF........... Normal
(a) When an error occurs, the ERROR LED at the front of the CPU comes on.
Also, the error log can be known from the peripheral devices started by
GSV13PE or GSV22PE.
(b) When M2041 is ON, positioning cannot be started. You must eliminate the
cause of the error and switch the power back ON, or reset the servo system
CPU.
REMARK
Even if a module is loaded at a slot set as "NO USE" in the system setting
data set with a peripheral device, that slot will be regarded as not used.
(6) All axes servo ON command (M2042) ..................... Signal from SCPU to PCPU
The all axes servo ON command is used to enable servo operation.
(a) Servo operation enabled
(b) Servo operation disable ............ • M2042 is OFF
All axes servo ON command (M2042)
All axes servo ON accept flag
(M2049)
Servo ON
POINT
M2042 has been turned ON, it will not go OFF even if the CPU is set in the
STOP status.
M2042 is turned ON while the servo OFF
signal (M3215+20n) is OFF and there is no
servo error.
• The servo OFF signal (M3215+20n) is ON
• Servo error
ON
OFF
ON
OFF
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