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GUI Interface
General Data Comms
Default Baud rate: 9600
Data bits: 8 bit
Parity: None
Stop bit: 1
Default 4 wire (RS422)
Actual address for keypads is 0XA0 PLUS (Keypad Number -1).
MSB set denotes address byte. Cleared if byte is data.
Checksum calculated from:
Address Byte + Byte 1 + Byte N
MSB of checksum is then cleared
after value calculated.
Tx1500 Keyboard - Key Press Codes
0x10
0x11
0x1c
0x1d
0x22
0x23
0x28
LD11
0x29 when pressed
AND
0x2e when held pressed
48
A0
A1
0x12
0x13
0x14
0x1e
0x1f
0x20
0x24
0x25
0x26
0x2a
0x2b
0x2c
LD12
LD4
Keypad Address
A2
A3
A4
A5
A6
Key Press Code
(e.g. 0x10)
Checksum = ((Address + Keycode) & 0x7f))
0x16 when pressed
0x2f when held pressed
0x15
LD8
LD10
0x21
LD7
0x27
LD6
0x2d
LD5
A7
A8
A9
AA
AB
AND
0x17
0x18
0x19
LD3
AC
AD
AE
AF
0x1a
0x1b
LD2
LD1
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