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Analog unit instructions
Data types
Input variable
iIOWordOffset
bChannel0HighResolution–b
Channel5HighResolution
bTemperatureInFahrenheit
bChannel012DIPSwitchSetTo
Resistor
bChannel345DIPSwitchSetTo
Resistor
Output variable
iInChannel0–iInChannel5
In this example the function has been programmed in ladder diagram (LD) and structured text (ST).
Example
The same POU header is used for all programming languages.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
LD
Use ExpansionUnitNumberToIOWordOffset_FP0 (see page 1125) to calculate the word offset of
the analog unit connected to an FP0.
1106
Data type
Function
The offset of the first WX/WY address of the RTD unit according
to its position.
FP0R, FP0, FP-Sigma: (use
ExpansionUnitToIOWordOffset_FP0 (see page 1128)) or
unit 1 => address 2, unit 2 => address 4, unit 3 => address 6
FP-X: (use ExpansionUnotToIOWordOffset_FPX_FP0 (see page
1129)) or
FP0 adapter
1st unit
INT
2nd unit
3rd unit
4th unit
5th unit
6th unit
7th unit
8th unit
sets the resolution at the corresponding channel:
FALSE: low resolution
TRUE: high resolution
Do not change this value during runtime.
sets the temperature measurement
BOOL
FALSE: °C
TRUE: °F
settings according to the RTD device
FALSE if you have set the DIP switch to Pt100, Pt1000,
Ni1000
TRUE if you have set the DIP switch to resistor
stores the digital data from the corresponding input channels of
the FP0-RTD6 unit
Temperature low resolution 0.1 °C or °F according to settings:
e.g. 20.12°C -> channel value 201 (outside range 8191)
Temperature high resolution 0.01 °C or °F according to settings:
INT
e.g. 20.12°C -> channel value 2012 (outside range 8191)
Resistor low resolution 1Ω: 20Ω-2200Ω->chanel value 20-2200
(outside range 16383)
Resistor high resolution 0.1Ω: 20Ω-1630Ω->channel value
200-16300 (outside range 16383)
address of
address of
address of
unit 1
unit 2
unit 3
30
32
34
40
42
44
50
52
54
60
62
64
70
72
72
80
82
84
90
92
94
100
102
104
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