Download ProSoft Technology ProTalk PTQ-104C User manual

Mailbox Messaging
User Manual
6.1
PTQ-PDPMV1 ♦ Quantum Platform
PROFIBUS DP Master Network Interface Module for Quantum
Mailbox Message Queuing
The PTQ-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
Input messages for processor
126
Alarm messages from slaves for
processor
100
Number of messages that the PTQ module will
queue by type of message. Note that status of
the queues can be monitored via the Queue
Message Count values.
6.1.1 Queue Timeouts
The PTQ-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.
Page 152 of 306
ProSoft Technology, Inc.
August 12, 2014