LXE 1280 Reference Guide
Protocol Messages
219
E-SW-LDSPLUSRG-G
LDS Plus Reference Guide
?x – Error
Error Message. The network device sends a ?x message to the host computer when there is an
error in the last message sent from the host computer.
error in the last message sent from the host computer.
Possible values for x:
Values for x Description
1 Not
implemented.
2
Unexpected "R" type message was received from the host or was not received
in the specified time limit.
in the specified time limit.
3
The header of a message sent from the host computer contained an illegal LXE
type character.
type character.
4
The message from the host computer contained an illegal ASCII control
character.
character.
The illegal ASCII characters are 00 hex through 1F hex with the exception of
the following characters:
the following characters:
Line Feed
0A hex
Carriage Return
0D hex
DC1XON
11
hex
DC3XOFF
13
hex
The host should also not send 80 hex through FF hex.