The Delacor Queued Message Handler (DQMH) template is based on the National Instruments Queued Message Handler Project Template (NI QMH) that ships with LabVIEW 2012 and later. The NI QMH documentation can be found by clicking Create Project from the Getting Started window in LabVIEW and then clicking the More Information link in the NI QMH project description. You can also create a project based on this template, which will include a copy of the documentation.

Implementing communication between DQMH modules using events was based on the concepts presented by Justin Goeres during CLA Summit 2011 and NIWeek 2011 (more information here). The main modifications to Justin’s approach were (1) changing the nomenclature from Private/Public events to Request/Broadcast events, and (2) using the NI QMH as the basis for the modules instead of the JKI State Machine.

Refer to the Thermal Chamber Control example available from the Help>Find Examples…>Directory Structure>DelacorDelacor QMH>DQMH Fundamentals – Thermal Chamber for examples on how to use this template in applications.

Getting started videos and demonstrations can be found at:

DQMH Best Practices and Guidelines can be found at: DQMH Best Practices