Configuration Tab 1794-IR8, -IT8
Use this tab to configure each input channel of your 1794-IR8 or -IT8 modules.
Parameters
Sensor Type
Choose the type of sensor for channels 0 through 7. These sensors allow individual channel range selections for different scaled values.
TIP:
The 1794-IT8 module can measure the cold junction temperature for channels 0-3 and 4-7.
Choose from:
1794-IR8 Sensor Types | 1794-IT8 Sensor Types |
Resistance (default) | mV (millivolt default) |
No sensor | Type B (300 to 1800 C, or 572 to 3272 F) |
100 ohm Pt 385 | Type E (-270 to 1000 C, or -454 to 1832 F) |
200 ohm Pt 385 | Type J (-210 to 1200 C, or -346 to 2192 F) |
500 ohm Pt 385 | Type K (-270 to 1372 C, or -454 to 2502 F) |
100 ohm Pt 3916 | Type R (-50 to 1768 C, or -58 to 3214 F) |
100 ohm Ni 618 | Type S (-50 to 1768 C, or -58 to 3214 F) |
200 ohm Ni 618 | Type T (-270 to 400 C, or -454 to 752 F) |
500 ohm Ni 618 | Type C (0 to 2315 C, or 32 to 4199 F) |
120 ohm Ni 672 | Type N (-270 to 1300 C, or -450 to 2372 F) |
10 ohm CU 427 | Type TXK/XK(L) (-200 to 800 C, or -328 to 1472 F) |
Ch 0-3 CJT (The Cold Junction temperature of channels 0-3) | |
Ch 4-7 CJT (The Cold Junction temperature of channels 4-7) | |
No sensor (do not scan) |
Data Format
Choose the module's reported data format in actual engineering units for all channels. The scaled values are in integer format. Choose from:
- Degrees C (default)
- Degrees F
- -32767 to 32767
- 0 to 65535
Notch Filter
Choose the frequency for the first notch filter. The filter changes the module's A/D output data rate. Choose from:
- Hardware Filter Only (default=0)
- 40 Hz
- 10 Hz
- 4 Hz
- 2 Hz
- 1 Hz
- 0.5 Hz
- 0.2 Hz
Enhanced Mode (1794-IR8)
Check this box to improve module accuracy and reduce errors caused by temperature drift.
Note that while module accuracy is improved in this mode, you may notice a decrease in module output.
Fixed Filter Enable (1794-IT8)
Check this box to enable the digital software filter.
The filter reaches 100 percent of a full scale step input in 60 times the selected notch filter.
This box is unchecked (that is, the filter is disabled), by default.
Out of Range LED Enable
Check this box to enable the channel LED, which will turn on in under or over range conditions.
OK
Click this button to accept your edits on all tabs and close the dialog.
Cancel
Click this button to delete your edits on any tab and close the dialog.
Apply
Click this button to make your edits effective 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,controllerA device that controls machines or processes elements (for example, a programmable controller or relay panel).
- 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 connection to the module is not inhibited). If you don’t click the Apply or OK button, your changes are not sent to the controller.
TIP:
The connection to a FLEX I/O module using Rack communication cannot be inhibited. The Inhibit check box on the Connection tab is disabled in this case.
Help
Click this button for assistance with this tab.
Provide Feedback