B–63172EN/01
28. EXTERNAL DATA INPUT
NC FUNCTION
171
A program number from 1 - 9999 can be given from outside to the NC to
call the corresponding program from the NC memory.
In machines with automatic loading function of various workpiece, this
function can be used to automatically select and execute program suitable
to the workpiece.
By sending alarm number from outside, the NC is brought to an alarm
status; an alarm message is sent to the NC, and the message is displayed
on the screen of the NC. Reset of alarm status is also done with external
data.
Up to 4 alarm numbers and messages can be sent at a single time. Alarms
0 to 999 can be sent. To distinguish these alarms from other alarms, the
CNC displays them by adding 1000 to each alarm number. The messages
of up to 32 characters can be sent together with an alarm.
Message to the operator is given from outside the NC, and the message
is displayed.
The message is sent after the message number (0 to 999). Only one
message with message number can be sent at a single time. Maximum
255 characters can be used for a single message.
The message numbers 0 to 99 are displayed along with the message.
To distinguish these alarms from other alarms, the CNC displays them by
adding 2000 to each alarm number. When a message from 100 to 999 is
displayed, the message number is not displayed; only its text is displayed.
An external data will clear the operator messages.
28.1
EXTERNAL
PROGRAM NUMBER
SEARCH
28.2
EXTERNAL ALARM
MESSAGE
28.3
EXTERNAL
OPERATOR’S
MESSAGE