Справочное Руководство для LXE 1280

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Protocol Messages 
LDS Plus Reference Guide 
E-SW-LDSPLUSRG-G 
Network Device to Host Protocol Message 
A – Acknowledgement 
Acknowledgment. Informs the host computer that the DOS terminal received the message and 
acknowledged it. 
B – Busy 
Busy message. Device was busy and did not accept the last message that the host sent. This 
message also returns the DOS terminal ID (if available) of the message that was not accepted. 
C – Carrier Active 
Carrier active message. Has no function. 
D – Reset 
Reset message. Sends a D protocol message anytime it resets.  
L – On-Line 
On-line message. Sends an L protocol message to the host computer when it goes back on-line. 
See also O protocol message later in this table.  
N – Non-Acknowledgement 
Non-acknowledgment message. Sends an N protocol message to the host when the DOS terminal 
does not acknowledge a message sent to it. 
O – Off-Line 
Off-line message. Sends an O protocol message to the host computer when it goes off-line.  
See also L protocol message.