Temperature Measurements (Rtd & Tc) With High Resolution; Table 67: Temperature Measurement Setting With High Resolution Option - Standard Format/ Fahrenheit; Table 68: Type C Tc Setting With High Resolution Option - Standard Format/Fahrenheit - WAGO 750-489 Manual
4ai rtd/tc/strain gauge ex i, 4-channel analog input, rtd/tc/strain gauge, intrinsically safe for wago-i/o-system 750 series
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70
Process Image
4.5.4
Temperature Measurements (RTD & TC) with High
Resolution
4.5.4.1
Standard Format/Fahrenheit
With the setting "High Resolution," the I/O module converts the measured values
of the temperature sensors (RTDs or TCs) into temperature values and outputs
the conversion results in degrees Fahrenheit to two decimal places.
The temperature values are represented in one word (16 bits) with a resolution of
one digit per 0.01 °F.
The numerical range used corresponds to the defined temperature range of
−58 °F ... +302 °F and is output accordingly as a process value in the range
−5800 ... +30200.
Exception: With Type C TC sensors, the defined temperature range
corresponds to +32 °F ...+302 °F, i.e. +3200 ... +30200 as a process value
Table 67: Temperature Measurement Setting with High Resolution Option – Standard Format/
Fahrenheit
Temperature
[°F]
≤ -76.01
-76.00
-58.01
-58.00
302.00
302.01
320.00
≥ 320.01
Process values below 0 are represented in binary form as the two's complement.
1)
Table 68: Type C TC Setting with High Resolution Option – Standard Format/Fahrenheit
Temperature
[°F]
≤ 13.99
14.00
31.99
32.00
302.00
302.01
320.00
≥ 320.01
Manual
Version 1.1.0, valid from FW Version 02
Numeric Value
1)
Hex.
Dec.
0x8000
-32768
0xE250
-7600
0xE957
-5801
0xE958
-5800
0x75F8
30200
0x75F9
30201
0x7D00
32000
0x7FFF
32767
Numeric Value
Hex.
Dec.
0x8000
-32768
0x0578
1400
0x0C7F
3199
0x0C80
3200
0x75F8
30200
0x75F9
30201
0x7D00
32000
0x7FFF
32767
WAGO-I/O-SYSTEM 750
750-489 4AI RTD/TC/Strain Gauge Ex i
Status Byte,
Error LED
Hex.
0x50
On
0x41
On
0x00
Off
0x42
On
0x60
On
Status Byte,
Error LED
Hex.
0x50
On
0x41
On
0x00
Off
0x42
On
0x60
On
Range
Underflow
Underrange
Nominal
range
Overrange
Overflow
Range
Underflow
Underrange
Nominal
range
Overrange
Overflow
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