Ni100; Table 21: Process Image, Ni100, With Wire Break Diagnostics - WAGO 750-461 Series Manual

30 Process Image
4.2.1

Ni100

The 750-461/000-004 version calculates the resistance values of Ni100 sensors
and outputs the data as temperature values. The temperature values are
displayed at a resolution of 1 digit per 0.1 °C in one word (16-bit). Temperature
values below 0 °C are represented in two's complement binary. As a result, 0 °C
corresponds to the numeric value 0x0000 and 100 °C to the numeric value
0x03E8 (dec. 1000). The possible numeric range corresponds to the defined
temperature range of −60 °C to +250 °C for type Ni100 sensors.

Table 21: Process Image, Ni100, with Wire Break Diagnostics

Temperature
°C
< −60.0
−60.0
−50.0
0.0
50.0
100.0
150.0
200.0
250.0
> 250.0
Wire break at R
1)
Process values below 0 °C are represented in two's complement binary
The measured value can exceed a decimal range of −600 to +2500 before
limitation takes effect.
Manual
Version 1.4.1
Resistance
Ω
Binary
< 69.16 '1000.0000.0000.0001'
69.16 '1111.1101.1010.1000'
74.26 '1111.1110.0000.1100'
100.00 '0000.0000.0000.0000'
129.10 '0000.0001.1111.0100'
161.77 '0000.0011.1110.1000'
198.62 '0000.0101.1101.1100'
240.64 '0000.0111.1101.0000'
289.13 '0000.1001.1100.0100'
> 289.13 '0010.0001.0011.0100'
'0010.0001.0011.0100
L
WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
1)
Numeric value
Hex.
0x8001 −32767
0xFDA8
0xFE0C
0x0000
0x01F4
0x03E8
0x05DC
0x07D0
0x09C4
0x2134
0x2134'
Status LED
Byte Error
Hex. AI 1, 2
Dec.
0x41 ON
−600 0x00 OFF
−500 0x00 OFF
0 0x00 OFF
500 0x00 OFF
1000 0x00 OFF
1500 0x00 OFF
2000 0x00 OFF
2500 0x00 OFF
8500 0x42 ON
8500 0x42 ON