Emerson MVME147 manual Enabling TARGET Role

Models: MVME147

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Enabling TARGET Role

6

TARGET ROLE ROUTINES

Data Area

Only one direction allowed per command. If multiple

 

directions of data transfer are required, linked commands

 

could provide a solution.

Message-In Area (user defined)

For messages to be sent to the initiator.

Message-Out Area (user defined)

258 byte maximum for extended message for messages sent by initiator.

Command Count

The number of bytes command received in the command area.

Command Area(s)

Commands are stored in this 12-byte-maximum area.

Status Area

This status byte is sent if the status phase is encountered in the

 

script.

Data Area Count

Data transfer count.

Data Area Pointer

Pointer to the data area described below. DATA-IN: to the

initiator, DATA- OUT: from the initiator.

Message-In Area Count

Number of message bytes to be sent to the initiator.

Message-In Area Pointer

Pointer to the message-in area described below. Messages sent to the initiator.

Message-Out Area Count (not used)

Message-Out Area Pointer

Pointer to the message-out area described below. Messages received from the initiator.

Enabling TARGET Role

1.Prepare a custom sequence packet as described in the TARGET Enable Custom Sequence Packet section in Chapter 2, with the code of TARGET

6-4

Page 72
Image 72
Emerson MVME147 manual Enabling TARGET Role