Do-more H2 Series PLC User Manual, 1st Edition, Rev. F - H2-DM-M
6–21
Chapter 6: Specifications - Analog I/O Modules
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D
F2-04RTD - continued
The jumpers labeled RTD-0, RTD-1, and RTD-2 are used to select the type of RTD.The
module can be used with many types of RTDs. All channels of the module must be the same
RTD type.
The default setting from the factory is Pt100
q
(RTD-2 comes with the jumper removed).
This selects the DIN43760 European type RTD. European curve type RTDs are calibrated to
DIN43760, BS1905, or IEC751 specifications which is 0.00385
q
/
q
/˚C(100˚C = 138.5
q
).
The jPt100
q
type is used for the American curve (0.00392
q
/
q
/˚C), platinum 100
q
RTDs.
The 10
q
and 25
q
RTD settings are used with copper RTDs.
The following table shows how to arrange the jumpers to set the different input types.
F2-04RTD Module Jumper Table (Input Type)
RTD Inputs
RTD-0
RTD-1
RTD-2
CU 10
q
No
No
No
CU 25
q
Yes
No
No
jPt 100
q
No
Yes
No
Pt 100
q
Yes
Yes
No
Pt 1000
q
No
No
Yes
Yes = Jumper Installed
No = Jumper Removed
The last two jumpers, Units-0 and Units-1, are used to set the conversion unit. The 2’s
complement options are Fahrenheit or Celsius. The module comes from the factory with both
jumpers installed. For Fahrenheit, remove Units-1 jumper. For Celsius remove both Units-0
and Units-1 jumpers.
All RTD types are converted into a direct temperature reading in either Fahrenheit or Celsius.
The data contains one implied decimal place. For example, a value in WX memory of 1002
would be 100.2˚C or ˚F.
Negative temperatures are represented in 2’s complement form.
To view this data format in the Do-more Designer software, select Native.
The following table shows how to arrange the jumpers to set the different conversion units.
F2-04RTD Module Jumper Table (Temperature Conversion Unit)
Temperature Conversion Units
Units-0
Units-1
2’s Complement (
˚
F)
Yes
No
2’s Complement (
˚
C)
No
No
Yes = Jumper Installed
No = Jumper Removed