Electronic Keying
Electronic Keying reduces the possibility of using the wrong device in a control system. Electronic Keying compares the device defined in the project to the installed device. If keying fails, a fault occurs.
These attributes are compared:
Attribute | Description |
|---|---|
Vendor | The device manufacturer. |
Device Type | The general type of the device, for example, digital I/O module. |
Product Code | The specific type of device. The Product Code maps to a catalog number. |
Major Revision | A number that represents the functional capabilities of a device. |
Minor Revision | A number that represents behavior changes in the device. |
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