ProSoft Technology PTQ-PDPMV1 - Manual (Page 83)

PTQ-PDPMV1 ♦ Quantum Platform Configuring the Processor with Unity Pro
PROFIBUS DP Master Network Interface Module for Quantum User Manual
ProSoft Technology, Inc. Page 83 of 306
August 12, 2014
The PTQ_PDPMV1_Sample Functional Module supports input and output
variables used for PTQ status, acyclic mailbox and slave cyclic I/O data. All input
information is located in the <Inputs>: StatIn, MailIn and DataIn area (data
delivered to the Unity processor) and all output information is located in the
<input/output>: StatOut, MailOut, and DataOut (data sent to the PTQ module).
You can access the supported mailboxes in the provided table.
Every mailbox has its own function block that has a unique "Impl" ST derived FB
type file.
The following illustration shows part of the function block implementation
(structured text code) that performs the mailbox request after the command
register is triggered by the processor application. For example, the
SetOperatingMode command is executed when the Out
(SetOperate,SetStop,SetClear).Cmd bit is true.
This bit is accessed and controlled in a tag in the provided table.
Note: Refer to Special Function Mailbox Messaging Commands (page 153) for more information
about Mailbox Commands.