Allen-Bradley 1734-ADNX, Руководство пользователя

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Publication 1734-UM002C-EN-P - July 2003
3-2 Using Auto Start Mode
Why Use Auto Start Mode?
Auto Start Mode offers you a quick and easy method of getting your
POINT I/O system ‘up and running’. If your POINT I/O application
can use default configuration, you should use Auto Start Mode to
easily begin operations.
Once your adapter is:
•
installed
•
connected to the system’s I/O modules
•
online (in RSNetWorx for DeviceNet)
you only need to choose the Auto Start Mode option and the adapter
begins working with a default configuration.
What Does Auto Start Mode Do?
When using Auto Start Mode, the adapter:
1. Sets all modules on the backplane to Auto Baud.
2. Reads the Subnet module’s identity information.
3. Sets backplane modules’ addresses sequentially.
4. Generates a scanlist for the Subnet.
5. Maps I/O data, based on byte, word, double-word, or fixed
boundaries.
When this sequence of events is completed, the POINT I/O modules
connected to the adapter are ready to accept connections from a
scanner.
IMPORTANT
Although Auto Start Mode allows your adapter to
operate with a default configuration, you can write a
custom configuration after operation has begun.
For more information on how to write custom
configuration for your adapter on DeviceNet, see
Chapter 5, Adding the 1734-ADN(X) to the
DeviceNet Scanner’s Scanlist.