Prosoft-technology MVI56-PDPMV1 Bedienungsanleitung PDF herunterladen (Seite 134)

Mailbox Messaging MVI56-PDPMV1 ♦ ControlLogix Platform

User Manual PROFIBUS DPV1 Master

Page 134 of 255 ProSoft Technology, Inc.

March 22, 2011

3.1 Mailbox Message Queuing

The MVI56-PDPMV1 module operates asynchronously on the Mailbox Messages

and as such provides for the queuing of the messages as they are received. The

queue sizes used in the module are as follows:

Queue Type Queue Size

Max

Description

Output message from processor 126 Number of messages that the MVI56 module

will queue by type of message. Note that status

of the queues can be monitored via the Queue

Message Count values.

Input messages for processor 126

Alarm messages from slaves for

processor

100

3.1.1 Queue Timeouts

The MVI56-PDPMV1 module will only allow a message to stay in a queue for up

to 10 seconds. If the PROFIBUS Master (for output messages) or the processor

(for input and alarm messages) has not successfully received a message within

10 seconds, the module will clear the message out of the queue.

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Prosoft-technology MVI56-PDPMV1 Bedienungsanleitung Seite 134