WAGO-I/O-SYSTEM 750
Process Image
89
750-464 2/4 AI RTD configurable
Manual
Version 1.0.1
7.4.6
Ni120 (Minco)
With the setting "Ni120 (Minco)" and activated Siemens format, the I/O module
converts the resistance measured values of Ni120 sensors (Minco) 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 75: Process image for 750-464, Ni120 setting (Minco)
Temperature
°C
Resistance
Ω
Numeric value
1)
with status information
4)
Status
byte
hex.
LED
error
AI 1, 2
Binary
XFÜ
Hex.
Dec.
---
< 9.00
'1111.1011.0000.0 011'
0xFB03
-1277
0x51
on
Short circuit
2)
< -80.0
66.60
'1111.1011.0000.0 001'
0xFB01
-1279
0x41
on
Underrange
3)
-80.0
66.60
'1111.1011.0000.0 000'
0xFB00
-1280
0x00
off
-50.0
86.16
'1111.1100.1110.0 100'
0xFCE0
-800
0x00
off
0.0
120.00
'0000.0000.0000.0 000'
0x0000
0
0x00
off
50.0
157.75
'0000.0011.0010.0 000'
0x0320
800
0x00
off
100.0
200.64
'0000.0110.0100.0 000'
0x0640
1600
0x00
off
150.0
248.95
'0000.1001.0110.0 000'
0x0960
2400
0x00
off
200.0
303.45
'0000.1100.1000.0 000'
0x0C80
3200
0x00
off
250.0
366.53
'0000.1111.1010.0 000'
0x0FA0
4000
0x00
off
260.0
380.31
'0001.0000.0100.0 000'
0x1040
4160
0x00
off
> 260.0
>380.31
'0001.0000.0100.0 001'
0x1041
4161
0x42
on
Overrange
3)
---
> 5500.00
'0001.0000.0100.0 011'
0x1043
4163
0x62
on
Wire break
2)
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