Mitsubishi Electric MELDAS C6 Interface Manual page 189

The message at emergency stop is displayed in NC screen shown below.
(Example) EMG EMERGENCY STOP PLC
When the emergency stop occurs, the message is coded and an alarm No. is output.
Error message
EMG EMERGENCY
(Note 1) If the MCP alarm "Y02 SYSTEM ALARM" occurs, part of the data will not be coded.
Confirm the data on the display unit.
(Example) Y02 SYSTEM ALARM 0051 0104
In this case, only "Y02" and "0051" are coded and output to the PLC I/F device.
(Note 2) If an alarm without an alarm No. occurs, "0" will be set as the alarm No. and output to the
PLC I/F device.
(Note 3) If an alarm that does not have an axis name occurs, "0" will be set as the axis name and
output to the PLC I/F device.
(Note 4) Alarms not shown in the code table are not output to the PLC I/F device.
(Note 5) If multiple alarms occur simultaneously, only the alarm with the highest order of priority in
the code table will be output.
(Note 6) The "OOO" section of the program error "POOO" is output to the alarm No. area.
(Example) "P34 G-CODE ERROR 0 0"
The code output becomes 71003400, and the output to PLC I/F devices is as
follows.
0 1 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Alarm type
6. EXPLANATION OF INTERFACE SIGNALS
6.2 PLC Input Signals (Data Type: R***)
Emergency stop code list
EXIN External emergency stop
PLC User PLC emergency stop
SRV Servo Amp not ready
STOP User PLC not running
SPIN Spindle Amp not ready
PC_H PLC high-speed process error
PARA Door-open II fixed device setting illegal
LINK Communication error
WAIT Waiting connection
XTEN External emergency stop
LAD User PLC illegal code
Alarm No.
6-2-29
Details
Axis name
Alarm No.
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
0010