User Manual Part 2

RFID Interface
94
LRP820S-Series Long-Range Passive Reader/Writers
the User Inputs will set the corresponding User Input bit to zero,
turning off the corresponding LED. The following chart shows all of
the valid hex values for the Input Status bytes.
MSB LSB Remarks
LSB Bit 3
Input D
LSB Bit 2
Input C
LSB Bit 1
Input B
LSB Bit 0
Input A
00H 00H Inputs A, B, C, D,
OFF
0 0 0 0
00H 01H Input A, ON - B, C,
D, OFF
0 0 0 1
00H 02H Input B, ON - A, C,
D, OFF
0 0 1 0
00H 03H Input A, B, ON - C,
D, OFF
0 0 1 1
00H 04H Input C, ON - A, B,
D, OFF
0 1 0 0
00H 05H Input A, C, ON - B,
D, OFF
0 1 0 1
00H 06H Input B, C, ON - A,
D, OFF
0 1 1 0
00H 07H Input A, B, C, ON -
D, OFF
0 1 1 1
00H 08H Input D, ON - A, B,
C, OFF
1 0 0 0
00H 09H Input A, D, ON - B,
C, OFF
1 0 0 1
00H 0AH Input B, D, ON - A,
C, OFF
1 0 1 0
00H 0BH Input A, B, D, ON -
C, OFF
1 0 1 1
00H 0CH Input C, D, ON - A,
B, OFF
1 1 0 0
00H 0DH Input A, C, D, ON -
B, OFF
1 1 0 1
00H 0EH Input B, C, D, ON -
A, OFF
1 1 1 0
00H 0FH Input A, B, C, D,
ON
1 1 1 1
Field Remarks
Command Command number in hex preceded by AAH
Message Terminator FFFFH