Chapter 4 Communication Protocol
Operating Manual for Communicating Area Sensor
4-1
Chapter 4
Communication Protocol
4.1 List of Communication Parameters
◎
Communication via RS485
Supported Baud Rates:9600, 14400, 19200, 38400 (default), 57600 bps
Supported Modbus communication formats:
ASCII: 8,N,1, 8,O,1, 8,E,1, 8,N,2, 8,O,2, 8,E,2
RTU: 8,N,1(default), 8,O,1, 8,E,1, 8,N,2, 8,O,2, 8,E,2
Supported communication addresses:1 (default) - 247
Supported function codes:03H, 06H
Before setting, the product output must be disconnected from the host; after setting, to avoid danger, it must be actually
tested to see if it meets requirement before the product output can be connected to the host.
Function
Position
Read
/write
Name
Description of numerical value
Basic
0000H ~
0001H
R
Firmware version
Address 0000H (High) and 0001H (Low)
Read back value 00XXH (High) and
00YYH (Low)
Version is XXYYH
002BH
W
Entering firmware upgrade
procedure
1: Entering firmware upgrade
0080H
R
Reading model
2 : AS-B
Communicatio
n format
setting
(Example 1)
0081H
R/W
Modbus communication
address
Default setting is 1;
setting range is 1 - 247
0082H
R/W Modbus Baud Rate (bps)
1: 9600
2: 14400
3: 19200
4: 38400 (Default)
5: 57600
0083H
R/W Modbus communication format
1: ASCII, 8, N, 1
2: ASCII, 8, O, 1
3: ASCII, 8, E, 1
4: ASCII, 8, N, 2
5: ASCII, 8, O, 2
