
B-63322EN-1/01 6. PROTOCOL B
-49-
6.4
ALARM AND RESET OF CNC
Once an alarm has been issued in the CNC, or upon the CNC being
reset, the remote buffer transmits the DC3 code, then:
(1) When the CNC reset/alarm state is not to be posted to the host
(parameter No. 5003 bit 3 = 0)
Turns off the ER signal, then performs close processing.
(2) When the CNC reset/alarm state is to be posted to the host
(parameter No. 5003 bit 3 = 1)
Transmits the “SYN” or “NAK” code to the host, then performs
close processing.
NOTE
1 When the parameter is set to post the CNC reset/alarm
to the host, the CNC terminates communication upon the
occurrence of an alarm in the CNC during
communication in either of the following cases:
(1) For foreground operation: The reset key or the STOP
key (soft key) is pressed.
(2) For background operation: The STOP key (soft key)
is pressed. (A reset does not cause communication
to terminate.)
2 When the remote buffer transmits data (for punch-out),
pressing the STOP soft key of the CNC cannot stop the
data transmission until all the buffered data between the
CNC and remote buffer has been transmitted to the host
computer.
To stop data transmission immediately, press the RESET
key.