I/O Module With Pt Resistance Sensors; Pt100; Table 14: I/O Modules With Pt Resistance Sensors; Table 15: Process Image, Pt100, With Wire Break Diagnostics - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
753-461 2AI Pt 100/RTD
4.1

I/O Module with Pt Resistance Sensors

Table 14: I/O Modules with Pt Resistance Sensors

753-461
4.1.1

Pt100

The 753-461 I/O module calculates the resistance measurement values from
Pt100 sensors and outputs them 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 −200 °C ... +850 °C for Pt100 sensors.

Table 15: Process Image, Pt100, with Wire Break Diagnostics

Temperature
°C
< −200.0
−200.0
−100.0
0.0
100.0
200.0
500.0
750.0
800.0
850.0
> 850.0
Wire break at R
The measured value can exceed a decimal range of −2000 ... +8500 before
limitation takes effect.
Evaluation Pt100
Measuring range: −200 °C ... +850 °C
Resistance
Ω
Binary
10.00 '1000.0000.0000.0001'
18.49 '1111.1000.0011.0000'
60.25 '1111.1100.0001.1000'
100.00 '0000.0000.0000.0000'
138.50 '0000.0011.1110.1000'
175.84 '0000.0111.1101.0000'
280.90 '0001.0011.1000.1000'
360.47 '0001.1101.0100.1100'
375.51 '0001.1111.0100.0000'
390.26 '0010.0001.0011.0100'
> 390.26 '0010.0001.0011.0100'
'0010.0001.0011.0100'
L
1)
Numeric value
Hex.
0x8001 −32767
0xF830
0xFC18
0x0000
0x03E8
0x07D0
0x1388
0x1D4C
0x1F40
0x2134
0x2134
0x2134
Process Image 29
Status LED
Byte Error
Hex. AI 1, 2
Dec.
0x41 ON
−2000 0x00 OFF
−1000 0x00 OFF
0 0x00 OFF
1000 0x00 OFF
2000 0x00 OFF
5000 0x00 OFF
7500 0x00 OFF
8000 0x00 OFF
8500 0x00 OFF
8500 0x42 ON
8500 0x42 ON
Manual
Version 1.3.1