Справочное Руководство для LXE 1280

Non-Form Messages 

125 

E-SW-LDSPLUSRG-G 

LDS Plus Reference Guide 

All messages must contain a control character. A control character is a bit pattern included in an 
outbound message that determines how a DOS terminal reacts to a message. Certain control 
characters require an additional character called an N/EF character. Inbound messages also 
contain control characters indicating whether a message is a form or non-form message and if a 
sequence number is included. 

Control characters may perform the following functions in outbound messages: 

•  indicate whether it is a form or non-form. 
•  indicate whether the message is forced or unforced. 
•  activate multiple beeps at the DOS terminal.  
•  change the auto transmit buffer length. 
•  indicate expanded function. 
•  enable barcode input. 
•  enable auxiliary input. 

A 

N 

No Special Effect. 

C 

N 

Activates Barcode Mode. 

G 

N 

Activates Auxiliary Input Mode. 

I 

Y 

Changes the Buffer Length. 

K Y 

•  Activates Barcode Mode. 
•  Changes the Buffer Length. 

O Y 

•  Activates Auxiliary Input Mode. 
•  Changes the Buffer Length. 

Q 

Y 

Activates Multiple Beeps. 

S Y 

•  Activates Barcode Mode. 
•  Activates Multiple Beeps. 

W Y 

•  Activates Auxiliary Input Mode. 
•  Activates Multiple Beeps. 

Y 

Y 

Expanded Functions, see Chapter 5. 

See Appendix D, “Code Tables and Character Sets”, for all control characters.