AR100 Operation Manual
© 2018 Schmitt Industries
Revision 1.1
22
Modbus RTU protocol (binary format)
Input Registers (Read only)
Register /
Address
Description
Example
1
Device type
63
2
Firmware version
40
3
Serial number
19999
4
Base distance
125
5
Measurement range
500
6
Measured value
15894
Holding Registers (Read / Write)
Regist
er /
Addres
s
Description
Value
10
Sensor ON
1 — laser is ON, measurements are taken (default
state);
0 — laser is OFF, sensor in power save mode.
11
Analog output ON
1 — analog output is ON;
0 — analog output is OFF.
12
Control of averaging,
sampling, AL-output
modes
x,x,x,x,x,x,х,х,x,M2,A,С,M1,M0,R,S - control register,
which determines the operation mode: averaging - M
bit, CAN interface - C bit, logic output -
М0:M2 bits,
analog output - R bit, sampling mode - S bit; x bits are
not used.
M2:M0
bits:
000 - out of the range indication (default);
001 - 'slave' mode (mutual synchronization);
010 - hardware zero set mode;
011 - laser switch OFF/ON;
100 - encoder mode;
101 - input mode;
110 - reset of the Ethernet packets counter;
111 - 'master' mode (mutual synchronization).
A
bit:
0 - averaging over a number of results (default);
1 - time averaging (5 ms).
C
bit:
0 - CAN interface mode by request (default);
1 - CAN interface mode with synchronization by