I/O Modules For Resistance Measurement; Resistance Measurement 10 Ohm To 1.2 Kohm; Table 24: I/O Modules For Resistance Measurement; Table 25: Process Image (10 Ω To 1.2 Kω) - WAGO -I/O-SYSTEM 750 Manual

32 Process Image
4.3

I/O Modules for Resistance Measurement

Table 24: I/O Modules for Resistance Measurement

750-461/000-002
750-461/000-007
2-conductor connection only!
Resistance measurement can only be performed in 2-wire connection technology.
4.3.1

Resistance Measurement 10 Ohm to 1.2 kOhm

The 750-461/000-002 version outputs the resistance values of the sensors directly.
The resistance values are displayed at a resolution of 1 digit per 0.1 Ω in one word
(16-bit). The possible numeric range corresponds to the defined measurement
range of 10 Ω to 1.2 kΩ.
Table 25: Process Image (10 Ω to 1.2 kΩ)
Resistance
100
200
300
400
500
750
1000
1200
> approx. 1200
"approx." indicates non-calibrated data.
Ω
Binary
0 '1110.1100.0000.0000'
10 '0000.0000.0110.0100'
'0000.0011.1110.1000'
'0000.0111.1101.0000'
'0000.1011.1011.1000'
'0000.1111.1010.0000'
'0001.0011.1000.1000'
'0001.1101.0100.1100'
'0010.0111.0001.0000'
'0010.1110.1110.0000'
'0010.0001.0011.0100'
Resistance measurement
Measuring range: 10 Ω to 1.2 kΩ
Resistance measurement
Measuring range: 10 Ω to 5.0 kΩ
Numeric value
Hex.
0xEC00
0x0064
0x03E8
0x07D0
0x0BB8
0x0FA0
0x1388
0x1D4C
0x2710
0x2EE0
0x2134
WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Status
Byte
Hex. AI 1, 2
Dec.
−5120 00
100 0x00
1000 0x00
2000 0x00
3000 0x00
4000 0x00
5000 0x00
7500 0x00
10000 0x00
12000 0x00
8500 0x42
Manual
Version 1.4.0
LED
Error
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON