Baldor MN1274 06/2001 installation manual 118

In addition to being able to set data on the HMI from a Baldor controller, the HMI panel can set its own data, the nature of which is determined when the user designs their own HMI project using the HMI Operator Panel design software.

The HMI communicates its own changes to the MintDrive using CAN event 12

(_setUNIOP_COMMS_UPDATE). This event will initiate the Mint CAN event handler (subroutine) #CAN1, and the associated CAN event information read using CANEVENTINFO will inform the user which HMI comms location has changed. The COMMS keyword can then be used to read the new data if required. Alternatively, the MintDrive can poll the comms data stored in the HMI to determine if it has changed. The HMI allows the data to be stored in its databases in the following formats:

INT32_DB		FLOAT_DB
Bit	1 bit	Float	4 bytes - IEEE format
Byte	8 bits / 1 byte	Float Inv.	4 bytes - IEEE format
Word	2 bytes
Word Inv.	2 bytes
Double Word	4 bytes

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