Newland NLS-HR11 User Manual page 25

Example:
Read the contents (0x35, 0x36, 0x37) of 3 contiguous registers starting from register 0x0005.
1) Read operation succeeds:
Command sent:
Message received: 0x02 0x00 0x00 0x03
2) Incorrect FCS:
Command sent:
Message received: 0x02 0x00 0x01 0x01 0x00 0x04 0x01
3) Invalid command:
Command sent:
Message received: 0x02 0x00 0x03 0x01 0x00 0x6A 0x61
15
0x7e 0x00 0x07 0x01 0x00 0x05
0x7e 0x00 0x07 0x01 0x00 0x05
0x7e 0x00 0x07 0x01 0x00 0x05
0x03 0xde 0xf6
0x35 0x36 0x37 0x2a 0xba
0x03 0x33 0x34
0x03 0x33
** Enter Setup
Exit Setup