Vendor calibration
Each analog output is calibrated in the factory. The results of the calibration are the coefficients of a correction function. The correction function is:
| YV = GV * XV + OV | YV: Output value after vendor calibration XV: Output value before vendor calibration GV : Gain of the vendor calibration OV : Offset of the vendor calibration |
The coefficients GV and OV cannot be changed by the user. If you wish to carry out a calibration yourself, use the user calibration.
You will find the coefficients for the different output signal ranges in the following CoE objects:
Connection | CoE object (read only) | |
|---|---|---|
X01 | 814Fhex | AO Vendor data Ch.1 |
X02 | 815Fhex | AO Vendor data Ch.2 |
X05 | 816Fhex | AO Vendor data Ch.3 |
X06 | 817Fhex | AO Vendor data Ch.4 |
Disabling the vendor calibration
Notice | |
Output error with disabled vendor calibration The output error specified in the technical data is no longer provided if you disable the vendor calibration. |
If you use the user calibration, it may be a good idea to disable the vendor calibration.
Set the relevant "Enable vendor calibration" CoE parameters to FALSE to disable the vendor calibration for the respective output.
Connection | "Enable vendor calibration" |
|---|---|
X01 | 0x8130:08 |
X02 | 0x8140:08 |