Nl-Pp60 Command Interfaces And Setting; Reset Pinpad; 1Command Format - Newland NL-PP60 User Manual

4.NL-PP60 command interfaces and setting

Command interface communication protocol：
The following protocol must be used for PINPAD to communicate with POS or other serial
port device:
Request To Send: The head of request [1byte] + data length [1 byte] + data [...] + verification
bit [1 byte]
Responding To Send: The head of responding [1byte] + data length [1 byte] + data [...] +
verification bit [1 byte
Or:
For normal responding, head of request and responding are the same; for wrong responding,
the head of responding is equal to the operation result of the head of request and 0X7F.
Data length is the length of data field.
Verification bit is all the XOR results from begin to end.
Command set and command format definition

4.1 Reset PINPAD

4.1.1Command Format

Sending data
CMD
0xd5
Responding data
CMD
0xd5
The head of responding [1byte] + data length [1 byte=0x01] + error
code [1byte] + verification bit [1 byte]
LEN
0x00
LEN
0x00
EDC
Verification
EDC
Verification