1756sc-IF8U Channel Configuration
Use this tab to configure the Spectrum Controls 1756sc-IF8u analog input channels.
On this tab, you can:
- select the channel you want to configure
- enter scaling values
- enter an input range type
- select a digital filter time
- select a module filter
- enter a digital filter value
- disable cyclic lead compensation
- set an RTD offset
- select an RTD type
Tip
: The module’s configuration information is stored in the controller and the controller configures the module.Note
: The 1756sc-IF8u Owner’s Guide, which is available online by following the hyperlink on the Vendor tab, provides additional configuration information for some of the parameters discussed in this help file.Channel
Click one of the channel buttons to display its information on this tab.
Disable checkbox
This box is checked to disable the channel. The default is unchecked (enabled).
Range Type
Select the channel's input range; stated and (actual):
- 0 = -0.05 to 0.05V (-0.075 to 0.075V)
- 1 = -0.15 to 0.15V (-0.175 to 0.175V)
- 2 = 0 to 5V (-0.5 to 5.5V)
- 3 = 1 to 5V (0.5 to 5.5V)
- 4 = 0 to 10V (-0.5 to 10.0V)
- 5 = -10.0 to 10.0V
- 6 = 0 to 20mA (0 to 21.5mA)
- 7 = 4 to 20mA (3.5 to 21.5mA)
- 8 = RTD 100Ω Pt 385
- 9 = RTD 200Ω Pt 385
- 10 = RTD 500Ω Pt 385
- 11 = RTD 1000Ω Pt 385
- 12 = RTD 100Ω Pt 3916
- 13 = RTD 200Ω Pt 3916
- 14 = RTD 500Ω Pt 3916
- 15 = RTD 1000Ω Pt 3916
- 16 = RTD 100Ω Ni 618
- 17 = RTD 200Ω Ni 618
- 18 = RTD 500Ω Ni 618
- 19 = RTD 1000Ω Ni 618
- 20 = RTD 120Ω Ni 672
- 21 = RTD 10Ω Cu 426
- 22 = RTD 604Ω Ni-Fe 518
- 23 = Resistance 0 to 250Ω
- 24 = Resistance 0 to 500Ω
- 25 = Resistance 0 to 1000Ω
- 26 = Resistance 0 to 2000Ω
- 27 = Resistance 0 to 3000Ω
- 28 = Resistance 0 to 4000Ω
- 29 = TC Type J
- 30 = TC Type K
- 31 = TC Type T
- 32 = TC Type E
- 33 = TC Type R
- 34 = TC Type S
- 35 = TC Type B
- 36 = TC Type N
- 37 = TC Type C
Scaling
Note
: User scaling is disabled if these values remain "0”.Low Signal
Enter a low scaling value. This value is scaled to Low Engineering value.
Low Engineering
Enter a value in user engineering units to which the Low Signal should be scaled. All values sent to/from the module are in engineering units.
High Signal
Enter a high scaling value. This value is scaled to High Engineering value.
High Engineering
Enter a value in user engineering units to which the High Signal should be scaled. All values sent to/from the module are in engineering units.
Module Filter
Select the type of filter to use:
- 50/60 Hz
- 10Hz
- 100Hz
- 250Hz
- 1000Hz
Digital Filter
Select a filter time constant for this channel. A non-zero value enables the filter, providing a time constant in milliseconds used in a first order lag filter to smooth the input signal.
RTD Type
When Range Type is RTD, select either
- Two-Wire RDT or Resistor
- Three or Four Wire RTD or Resistor
Disable Cyclic Lead Compensation
This option is available for "Three or Four Wire RTD or Resistor”. The box is checked to disable cyclic lead compensation and unchecked to enable it. The default is unchecked (enabled).
RTD Offset
For RTD 10-ohm Cu 426 only, set an Offset value (x 0.01 ohm).
OK
Click this button to accept your edits on any tab and close the dialog.
Cancel
Click this button to cancel your edits on any tab and close the dialog.
Apply
Click this button to apply your edits on any tab and continue editing.
If:
- you are online in Program, Remote Program or Remote Run mode and,
- this controller is the owner controller and,
- you have changed the module’s configuration in the software, when you click the Apply or the OK button, the information is automatically sent to the controller. The controller tries to send the information to the module (if the module’s connection is not inhibited). If you don’t click Apply, your changes are not sent to the controller.
Help
Click this button for help on this tab.
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