Calibration Tab - FLEX I/O Analog
Use this tab to setup and start the calibration process.
For Combo modules, this tab displays two sections of information. The top section pertains to input channels. The bottom section pertains to output channels. For input only or output only modules, this tab displays one section of information.
On this tab,
- specify the channels you want to calibrate
- view the calibration range
- start the calibration processWARNING:Be extremely cautious when calibrating FLEX I/O Modules. Do not calibrate in RUN or Remote RUN mode or while using the module for control. Doing this can lead to personal injury or death, property damage or economic loss.
Calibration of FLEX I/O Modules can be performed in its entirety via the Calibration tab under Module Properties. The RSLogix software steps you through the process of configuring your module - Ladder Logic is not required. In general, the Calibration software does not (and cannot) completely prevent you from putting your module into an unusable state. Here are some guidelines to follow when calibrating your module:
- Calibrating the outputs of a 1794-IF2XOF2I, for example, requires that the connection to the module be inhibited before attempting the calibration process. If this is not done, the adapter continually sends outputs to the module, overwriting the calibration settings and commands the software is sending. The software will display an error if this situation is detected and it aborts the calibration operation.
- Inhibiting the connection to the module is not required for calibrating the inputs.
- Before calibrating, all configuration edits must be applied. Configure the module as it will be used in the control system, apply the edits, and then inhibit the connection to the module.
- Prematurely canceling or stopping the calibration process in the software before completion leaves the module uncalibrated such that it should not be used in a control environment.TIP:Before starting calibration:
- Stop the process your output module is controlling.
- Apply any configuration changes using the Apply button.
- Inhibit the module’s connection (via the Connection tab).
- Disconnect input signals and connect test signals. Any type of control dependent on the normal input signals from this module does not have them during calibration.
Disconnect output signals and connect an appropriate measuring instrument. Any control system dependent on the outputs from this module do not have them during calibration. If the actuators of the control system are still wired to the module during calibration, they will receive the calibration reference signals, not outputs from the control system that are intended to control those actuators.
Parameters
Input Channel
Lists each input channel for the module.
Output Channel
Lists each output channel for the module.
Calibrate This Channel
Displays a check mark indicating that you want to calibrate the corresponding channel. Clear this checkbox for each channel that you do not want to calibrate.
Calibration Range
Displays the current configuration calibration range for information purposes.
TIP:
You can change this range on the Configuration tab.
- For inputs, you cannot calibrate in the 4-20 mA ranges. The software calibrates using a 0–20 mA range and returns to your specified range when complete.
For outputs, only two ranges are allowed: -10 to 10V and 0-20 mA. The software uses the -10 to 10V range for all voltage ranges chosen and the 0-20 mA range for all current ranges chosen. When calibration is complete, the module configuration returns to your specified configuration.
Start Calibration
Click this button to start the calibration process. You must be online to enable calibration; if you are offline, this button is disabled.
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