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8-21
Programming
Programming Protocol
This section discusses programming via the host computer. Refer to Parameter
Descriptions on page 8-3 for an explanation of the parameters.
Regardless of whether or not ACK/NAK is enabled, the ACK/NAK protocol is used for the
programming sequences that occur between the host and the scanner.
Except for the turn laser off command, all commands have the following format:
STX S T I [x] <Data> ETX LRC
where:
STX =
02h
(Start of Transmission)
S =
53h
(ASCII value of S)
T =
54h
(ASCII value of T)
I =
49h
(ASCII value of I)
[x] =
character:
D
44h
Identify software
E
45h
Turn laser on
F
46h
Upload all parameters
G
47h
Download all parameters
H
48h
Download specific parameters
<Data> = 30h + upper nibble of parameter 30h + lower nibble of parameter
ETX= 03h
LRC =
Exclusive-or of all characters transmitted except for the STX character.
Summary of Contents for LS 1220
Page 2: ...LS 1220 Product Reference Guide ...
Page 3: ......
Page 4: ...LS 1220 Product Reference Guide 70 12072 03 Revision A January 2003 ...
Page 23: ...1 8 LS 1220 Product Reference Guide Figure 1 3 LS 1220 Connector ...
Page 33: ...2 10 LS 1220 Product Reference Guide ...
Page 71: ...8 14 LS 1220 Product Reference Guide Figure 8 1 Hardware Handshaking ...
Page 97: ...9 6 LS 1220 Product Reference Guide Code Lengths cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 105: ...9 14 LS 1220 Product Reference Guide Prefix Suffix Values cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 108: ...9 17 Parameter Menus UPC Security Zone cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 120: ...9 29 Parameter Menus Intercharacter Delay cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
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