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11. PLC Help Function
11.1 Alarm Message Display
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(3) Alarm classification display
Classification No. can be displayed following the message to be displayed regardless of the F or
R type. (Dn1~Dn4 in the figure)
For example, one typical alarm message is prepared and classification No. can be used to
indicate the alarm source or cause.
Example) When spindle alarm occurs, the message "SPINDLE ALARM" is displayed and the
alarm source or cause is indicated by the classification No.
SPINDLE ALARM 5
This varies depending on the
alarm cause or source.
(Note 1)
For the classification No., the contents of each data register specified in alarm message
preparation are displayed. Data register D0 cannot be specified.
(Note 1) The display of the classification No. by cause is updated when an alarm message
display changes. It is not updated if only the contents of the specified data register
(Dn1 to Dn4) change. If the contents
of the specified data register are 0, no
classification Nos. are displayed.
Display example
A maximum of four messages
can be displayed at a time.
Classification No.
(Specified data register contents)
Maximum of 32 characters
Alarm message 1
Alarm message 2
Alarm message 3
Alarm message 4
dn1
dn2
dn3
dn4
<NC ALARM>
<STOP CODE>
<ALARM MESSAGE>
SERVO SPINDLE PLC-IF MENU
ALARM
ALARM / DIAGN 1
PLC
EMG mm
EMG EMERGENCY STOP
<OPERATOR MESSAGE>
11.1.2 Message Creation
(1) Alarm message type
Create messages by using PLC development software (GX-Developer).
Set the number of characters for one message and the number of messages to be prepared, then
enter message data through the keyboard.
The maximum length of an alarm message is 32 characters.
A maximum of 512 alarm messages can be prepared. For details, refer to the section "1.4
Creating PLC Message Data".