
Mailbox Messaging PTQ-PDPMV1 ♦ Quantum Platform
User Manual PROFIBUS DP Master Network Interface Module for Quantum
Page 178 of 306 ProSoft Technology, Inc.
August 12, 2014
6.3 Receiving Mailbox Message Responses from PTQ Module
After a mailbox message has been sent, a response from the command, usually
containing the requested data or the status of the command, is returned from the
PTQ module to the processor. The response is returned from the PTQ-PDPMV1
via the PROFIBUS Input data block.
Note: This is for the original layout with the default values; it changes if Slave diagnostics are
chosen in PCB.
Remembering the PROFIBUS Input Data Memory Map:
Quantum
Address
(Example)
Configuration, Status and Control data
Number of Messages in the In Mailbox Queue
Number of Messages in the Out Mailbox Queue
Number of Messages in the Alarm Queue
Last Out Mailbox Message ID processed from
Output Image
Current In Mailbox Control Index
Current Alarm Control Index
Incoming Mailbox Message data
The important section relevant to the Mailbox Messaging discussion is the
Incoming Mailbox Data section (Word Offsets 79 to 222). Within this section of
data, the following structure exists:
Comentarios a estos manuales