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MODBUS OVER SERIAL LINE (RS-485)
Interface
Baud rate
Format (Bits)
Reply delay (at
9600 baud)
LIST OF MODBUS REGISTERS (EXTEMP REGISTERS)
Address
R/W
0x00 (0)
-
0x01 (1)
R
0x03 (3)
R
0x04 (4)
R
0x05 (5)
R
0x06 (6)
R
0x07 (7)
R
0x08 (8)
R
0x09 (9)
-
0x0A (10)
R/W
0x0B (11)
R/W
0x0C (12)
R/W
0x0D (13)
R/W
0x0E (14)
R/W
0x0F (15)
R/W
0x10 (16)
R/W
0x11 (17)
-
to
0xCF (207)
6
1200 bps to 57600 bps,
detected automatically
8 data, odd/even/no parity, 1
or 2 stop bits
ExTemp registers: 1 s max
LCT-485 registers:
30 ms (single register)
50 ms (whole address space)
Description
[RESERVED]
Sensor ID (length: 2 words):
Bits 0..19 - Serial number
Bits 20..23 - Sensor field of view
(0=2:1, 1=15:1, 2=30:1)
Bits 24..27 - Sensor type (A= ExTemp)
Bits 28..31 - Reserved
Unfiltered object temperature
Sensor temperature
Maximum hold temperature
Minimum hold temperature
Average temperature
Filtered object temperature
[RESERVED]
Emissivity setting (1 LSB = 0.0001)
Reflected temperature
Sensor status:
Bits 0..1 - Reserved
Bit 2 - Hold processing on (1) / off (0)
Bit 3 - Hold peaks (1) / valleys (0)
Bits 4..6 - Reserved
Bit 7 - Reflected energy
compensation on (1) / off (0)
Bits 8..15 - Reserved
Average period (1 LSB = 250 ms)
Hold period (1 LSB = 250 ms)
Temperature at 4mA
Temperature at 20mA
[RESERVED]
Supported Functions
Read register
0x03, 0x04
(R)
Write single
0x06
register (W)
Write multiple
0x10
register (W)
Default
Min.
value
value
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9500
2000
0
-
3
-
1
0
1
0
0
-200
5000
800
-
-
Max.
value
-
-
-
-
-
-
-
-
-
10000
-
-
240
4800
9000
10000
-
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