Manual

Escape Sequences 6-7
Whenever any communications error is logged, a "?" character is sent immediately to the
host. See "Exceptional Conditions" in Chapter 5.
Table 21 - In Case of Communications Error Code Conflicts
If OA, OS, etc. is
pending
If handshake
string is pending
If output from ESC is
pending
OA, OS, etc. can't happen * error error
ESC.B error ** error error
ESC.E error error error
ESC.L error error error
ESC.O error error error
Ack error error error
Immed.
Response
error error error
Xon can't happen can't happen error
Xoff enqueue *** can't happen enqueue
Dummy ACK enqueue enqueue enqueue
"?" enqueue **** enqueue enqueue
* "Can't happen" means that the normal order in which the Automove System
attends to its duties prevents this situation from occurring.
** "Error" means that Communications Error 10 is logged.
*** "Enqueue" means that the new request will be "remembered" and processed as
soon as the currently-active one is finished.
**** The "?" can be transmitted to the host at virtually any time, for example when the
STOP button is pressed. The "?" never results in an output conflict. For more
information, see "Exceptional Conditions" in Chapter 5.