Ntc 20 Kohm; Table 50: Process Image For 750-464/020-000, Ntc 20 Kohm Setting - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-464 2/4 AI RTD configurable
4.6.2

NTC 20 kOhm

With the setting "NTC 20 kOhm" and activated Siemens format, the I/O module
converts the resistance measured values of NTC20 kOhm resistance sensors
and outputs them as temperature values.
The temperature values are displayed at a resolution of 1 digit per 0.5 °C.
The status information is depicted in bit 0 to bit 2 and the digitalized measured
value in bit 3 to bit 15.

Table 50: Process image for 750-464/020-000, NTC 20 kOhm setting

Temperature
°C
< -50.0
Underrange
-50.0
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")
4) Status information: X: Not used, F: Short circuit, wire break, Ü: Overrange
Numeric value
Resistance
kΩ
Binary
> 2288.96
'1111.1100.1110.0 001' 0xFCE1
3)
2288.96 '1111.1100.1110.0 000' 0xFCE0
70.20 '0000.0000.0000.0 000'
20.00 '0000.0001.1001.0 000'
6.72 '0000.0011.0010.0 000'
1.18 '0000.0110.0100.0 000'
0.305 '0000.1001.0110.0 000'
< 0.305
'0000.1001.0110.0 001'
3)
<0.009
'0000.1001.0110.0 011'
2)
1)
with status information
XFÜ Hex. Dec.
-799
-800
0x0000 0
0x0190 400
0x0320 800
0x0640 1600
0x0960 2400
0x0961 2401
0x0963 2403
Process Image 67
Status- LED
4)
byte error
Hex. AI 1, 2
0x41 on
0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x00 off
0x42 on
0x52 on
Manual
Version 1.1.0