M02 Digital Indicator
52
2) Calibration zeroing command: TARE ON<CR><LF> :
54 41 52 45 20 4F 4E 0D 0A
Return YES<CR><LF> or NO? <CR><LF>
3) Read ID no.: GET ID<CR><LF> :
47 45 54 20 49 44 0D 0A
Return ASCII code with 6 digits ID no.
6.7 Modbus
Indicator uses
RTU mode
to communicate, every 8-bit byte of the message are
divided into 2pcs of 4-bit hexadecimal characters to transmit at binary code.
Code: Binary
Function code:
Function code
Definition
Description
03
read the register
06
preset single register
16
preset several registers
Command only support preset double registers.
01
read coil
The length unit is bit.
05
write coil
Exception code response