Configuration For Ni Resistance Sensors; Table: 13 Process Image Configuration For Ni 100 And Ni 1000; With Broken Wire - WAGO -I/O-SYSTEM 750 750-481/003-000 Manual

34 Process Image
6.2

Configuration for Ni Resistance Sensors

To evaluate the nickel resistance sensors, the measured values of the resistance
are converted and sent as temperature values. All temperature values are
represented in a standard numeric format. The possible numerical range matches
the defined temperature range of the Ni sensors from -60 °C to +250 °C or from -
80 °C to +320 °C.
In the Ni 100, Ni 120 and Ni 1000 settings, the temperature values of the sensors
are represented with a resolution of 1 digit per 0.1 °C within a word (16 bits).
Thus, 0 °C corresponds to the numeric value 0x0000 and 100 °C to 0x03E8 (dec.
1000).
Temperature values below 0 °C are represented in two's complement binary form.
Table: 13 Process Image Configuration for Ni 100 and Ni 1000; with broken wire diagn.
Temperature
°C
<-60.0
-60.0
-50.0
0.0
50.0
100.0
150.0
200.0
250.0
>250.0
Broken wire
against RL
1) Temperature values below 0 °C are represented in two's complement binary form.
The measured value can exceed the range from –600 to 2500 until the limitation
applies.
Numercial value
binary
'1000.0000.0000.0001'
'1111.1101.1010.1000'
'1111.1110.0000.1100'
'0000.0000.0000.0000'
'0000.0001.1111.0100'
'0000.0011.1110.1000'
'0000.0101.1101.1100'
'0000.0111.1101.0000'
'0000.1001.1100.0100'
'0010.0001.0011.0100'
'0010.0001.0011.0100'
WAGO-I/O-SYSTEM 750
750-481/003-000 2AI RTD Ex i
1)
hex. dec.
0x8001 -32767
0xFDA8 -600
0xFE0C -500
0x0000 0
0x01F4 500
0x03E8 1000
0x05DC 1500
0x07D0 2000
0x09C4 2500
0x2134 8500
0x2134 8500
Status- LED
byte Error
hex. AI 1,2
0x41 on
0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x42 on
0x42 on
Manual
1.1.0