Intermec 1555 Reference Guide
Interactive Programming Mode
4-7
4
Example 1 (0x7F in the data)
Example 2 (0xEE in the checksum 1)
Frame Fields
STX Delimiter
The PPP is an extension of the protocol used for configuring Intermec data capture
products (based on Code 128 Set B and uses the StartB character) bar codes
(Table 4-4).
products (based on Code 128 Set B and uses the StartB character) bar codes
(Table 4-4).
Table 4-4 Start Transmission (STX) Frame Component
TYPE
A value of <TYPE> less than 0x65 corresponds to a setup command (Table 4-5).
Table 4-5 <TYPE> Frame Component (value of 0 to 0x64)
Note: See “<TYPE> Definitions” on page 4-16 for settings.
<CMD/RESP> <[PARM/DATA]>
Commands and optional parameters/data depending on the associated command
(Table 4-6).
(Table 4-6).
before: STX
TYPE 0x70
0x5
0x7F
0x38
CHK
ETX
with DLE: 0x7F
BFD
0x70
0x5
DLE
0x80
0x38
CHK
0x7F
before: STX TYPE byte1 byte2...byteN Chk1=0x05
Chk2=0xEE ETX
with DLE: STX TYPE byte1 byte2...byteN Chk1=0x05 DLE Chk2=0xEF
ETX
Delimiter
Value
Description
STX
0x7F
This character is used as a frame delimiter
Value of <TYPE>
Size
Description
[0 - 0x64]
1 byte
Indicates the frame type (BFR, SMC, IMC)