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 750-461 Series Manual

WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
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
Ω
0
10
100
200
300
400
500
750
1000
1200
> approx. 1200
"approx." indicates non-calibrated data.
Resistance measurement
Measuring range: 10 Ω to 1.2 kΩ
Resistance measurement
Measuring range: 10 Ω to 5.0 kΩ
Numeric value
Binary
'1110.1100.0000.0000'
'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'
Process Image
Hex. Dec.
0xEC00 −5120
0x0064 100
0x03E8 1000
0x07D0 2000
0x0BB8 3000
0x0FA0 4000
0x1388 5000
0x1D4C 7500
0x2710 10000
0x2EE0 12000
0x2134 8500
33
Status LED
Byte Error
Hex. AI 1, 2
00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x00 OFF
0x42 ON
Manual
Version 1.4.1