Ntc 10 Kohm Thermokon; Table 48: Process Image For 750-464/020-000, Ntc 10 Kohm Thermokon - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-464 2/4 AI RTD configurable
4.5.3

NTC 10 kOhm Thermokon

With the setting "NTC 10 kOhm Thermokon", the I/O module converts the
resistance measured values of NTC 10 kOhm Thermokon resistance 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
-40 °C to +150 °C.
Table 48: Process image for 750-464/020-000, NTC 10 kOhm Thermokon setting
Temperature
°C
< -40.0
Underrange
-40.0
-30.0
0.0
25.0
50.0
100.0
150.0
> 150.0
Overrange
---
Short circuit
1) Temperature values below 0 °C are represented in two's complement binary.
2) When short circuit and wire break monitoring is ON (see section "Behavior in the Event of an
Error")
3) When underrange / overrange limit is ON (see section "Behavior in the Event of an Error")
Resistance
kΩ
Binary
> 335.67
'1111.1110.0111.0000'
3)
335.67 '1111.1110.0111.0000'
176.68 '1111.1110.1101.0100'
32.65 '0000.0000.0000.0000'
10.00 '0000.0000.1111.1010'
3.60 '0000.0001.1111.0100'
0.68 '0000.0011.1110.1000'
0.18 '0000.0101.1101.1100'
< 0.18
'0000.0101.1101.1100'
3)
<0.009
'0000.0101.1101.1100'
2)
1)
Numeric value
Hex. Dec.
0xFE70 -400
0xFE70 -400
0xFED4 -300
0x0000
0x00FA 250
0x01F4 500
0x03E8 1000
0x05DC 1500
0x05DC 1500
0x05DC 1500
Process Image 65
Status LED
byte error
hex. AI 1, 2
0x41 on
0x41 on
0x00 off
0 0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x42 on
0x52 on
Manual
Version 1.1.0