Omega OS-MINIUSB series, User Manual

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6
Address Length
(words)
Description R/W
0x00 1 Sensor Type (16 for OS-MINIUSB, 17 for OS-MINIHUB) R
0x01 1 Field of view
0 for 2:1; 1 for 20:1
R
0x02 2 Serial number R
0x04 1 Modbus slave address R/W
0x05 1 Reflected Energy Compensation
0 for Off; 1 for On
R/W
0x06 1 Reflected Temperature R/W
0x07 1 Emissivity (1 LSB = 0.0001)
Minimum 0.2000, Maximum 1.0000
R/W
0x08 1 Hold Mode
0 for Off; 1 for Peak; 2 for Valley
R/W
0x09 1 Hold Period (1 LSB = 0.1 seconds)
Minimum 0.1 seconds, Maximum 1200.0 seconds
R/W
0x0A 1 Average Period (1 LSB = 0.1 seconds)
Minimum 0.1 seconds, Maximum 60.0 seconds
R/W
0x0B 1 Average Temperature R
0x0C 1 Minimum Temperature R
0x0D 1 Maximum Temperature R
0x0E 1 Filtered Temperature R
0x0F 1 Unfiltered Temperature R
0x10 1 Sensor Temperature R
0x11 1 Status (bits active high)
Bit 0: Measurement error
Bit 1: Sensor temperature low
Bit 2: Sensor temperature high
Bit 3: Object temperature low
Bit 4: Object temperature high
R
0x16 1 Reflected Temperature (not saved to non-volatile memory) R/W
0x17 1 Emissivity (not saved to non-volatile memory) R/W
Notes:
1. All temperature are in tenths of degrees C
2. With the exception of addresses 0x16 and 0x17, all write operations are saved to non-volatile memory
3. For further information please refer to http://www.modbus.org/specs.php
4. Use address 255 to communicate with any connected sensor (only one sensor connected)
5. Use address 0 to broadcast to all connected sensors (no response expected)
MODBUS OVER SERIAL LINE
INTERFACE
Baud rate 9600
Format 8 data, No parity, 1 stop
Reply delay (ms) 20
SUPPORTED FUNCTIONS
Read register 0x03, 0x04
Write single register 0x06
Write multiple register 0x10
Mask write register 0x17
The list below includes all available addresses:
R = Read, W = Write