Pt1000 (Iec 751), Id 2; Default Format; Table 24: Id 2, Setting Pt1000 (Iec 751), Standard Format - WAGO 750-451 Manual

WAGO-I/O-SYSTEM 750
750-451 8 AI RTD
4.3.4

Pt1000 (IEC 751), ID 2

4.3.4.1

Default Format

With the setting "Pt1000 (IEC 751)", the I/O module converts the measured
resistance values of Ni100-Pt100 sensors (IEC 751) into temperature values and
outputs the conversion results in degrees Celsius.
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 maximum number
range viewable in one word in two's complement representation ranges from
−32768 to +32767. The number range used depends on the sensor type set and the
resolution of the process value. For the setting "Pt1000 (IEC 751)", the possible
numerical range corresponds to the defined temperature range of −200 °C to +850
°C and ranges from −2000 to +8500 accordingly.

Table 24: ID 2, Setting Pt1000 (IEC 751), Standard Format

Temperature
°C
---
Short circuit
< −200.0
Underrange
−200.0
−100.0
0.0
100.0
200.0
500.0
750.0
800.0
850.0
> 850.0
Overrange
---
Wire break
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 "Diagnostics" > "Behavior in
the Event of an Error")
3) When underrange / overrange limit is ON (see section "Diagnostics" > "Behavior in the Event
of an Error")
Manual
Version 1.1.0
Resistance
Ω
Binary
< 10.00
'1111.1000.0011.0000'
2)
< 185.20
'1111.1000.0011.0000'
3)
185.20 '1111.1000.0011.0000'
602.56 '1111.1100.0001.1000'
1000.00 '0000.0000.0000.0000'
1385.06 '0000.0011.1110.1000'
1758.56 '0000.0111.1101.0000'
2809.78 '0001.0011.1000.1000'
3606.38 '0001.1101.0100.1100'
3757.04 '0001.1111.0100.0000'
3904.81 '0010.0001.0011.0100'
> 3904.81
'0010.0001.0011.0100'
3)
> 5010.00
'0010.0001.0011.0100'
2)
1)
Numeric value
Hex.
0xF830
0xF830
0xF830
0xFC18
0x0000
0x03E8
0x07D0
0x1388
0x1D4C
0x1F40
0x2134
0x2134
0x2134
Process Image 33
Status
Error
byte
LED
hex.
Dec.
−2000 0x50 ON
−2000 0x41 ON
−2000 0x00 OFF
−1000 0x00 OFF
0 0x00 OFF
1000 0x00 OFF
2000 0x00 OFF
5000 0x00 OFF
7500 0x00 OFF
8000 0x00 OFF
8500 0x00 OFF
8500 0x42 ON
8500 0x60 ON