P220 Stationary Barcode Scanner User Manual 46
Chapter 8 Scanner Settings
◼ Serial Port Command Format
operands + H/D + permanent command + data
The operand is the following command data
Indicates whether this command is sent from the host or from
the slave
Host: 0x04
Slave: 0x00
Indicates whether this command requires power-down save
0x08 requires power-down save
0x00 does not require power-down save
Indicates parameter data carried by this command
Check and algorithm: After all the previous data are added and
reversed, take a low byte of 8 bits
◼ Barcode Setting Format
Set barcode to Code 128 type Barcode
Prefix Fixed prefix: +N+S-
Operand The operand is the following command data
Data Indicates parameter data carried by this command