Specifications

Table Of Contents
Serial port intercommunication agreement | VI-88TR development handbook
Return data: if command execution correct, return data is 4 bytes of version
number:
Byte0
Major version of
hardware
Byte1
Minor version of
hardware(hardware
version number is
to show reader
model number)
Byte2
Major version of
software
Byte3
Minor version of
software
For example: if model number of reader is Reader1102, software version
number is V1.5, then return packet is:
F0H 07H 02H address 0BH 02H 01H 05H CheckSum
2.2.3 Set Relay
Function: to set relay status for reader
Command code: 03H
Command parameter: 1 byte
Bit0=1
No1 relay on
Bit0=0
No1 relay off
Bit1=1
No2 relay on
Bit1=0
No2 relay off
And so on.
Command packet: 40H 03H 03H K CheckSum
Return data: if success, return data is null.
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