Using Mailbox Function Blocks; Overview - ProSoft Technology ProTalk PTQ-PDPMV1 User Manual

PTQ-PDPMV1 ♦ Quantum Platform
PROFIBUS DP Master Network Interface Module for Quantum
3.4

Using Mailbox Function Blocks

Function blocks define software components or modules that perform a specific
function. Each function block has its own, pre-defined set of inputs and outputs.
The function blocks provided with the PTQ-PDPMV1 module contain the logic to
handle acyclic mailbox messages and alarms. They transfer data between the
main output/input mailbox arrays and the corresponding slave devices.

3.4.1 Overview

The mailbox function blocks build mailbox requests to the module and read the
mailbox response from the module. These mailbox function blocks are optional,
meaning that the project will update PROFIBUS data and status information even
if no function blocks are used.
ProSoft Technology, Inc.
August 12, 2014
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