Developing Host-Side Applications that Connect to GEM Equipment

Cimetrix HostConnect

Cimetrix HostConnect® is a software toolkit for rapidly developing host-side applications that connect to GEM equipment. It features a layered architecture to support a wide variety of host-side applications including equipment data collection, monitoring, process control, and optimization in a production manufacturing environment. HostConnect can be used for testing equipment-side applications for compliance to the GEM standards.

win10compatible2HostConnect contains four interface layers for interacting with the equipment as shown in the diagram below. The highest layers eliminate the need to understand the specifics of SECS message formats and protocols by managing the detailed aspects of messages, timeouts, and transactions for the developer. The low-level SECS message interfaces are still available for developers that want a more detailed level of control.

Cimetrix HostConnect Architecture


Our software toolkit includes an equipment configuration editor which has the ability to automatically discover event, variable and data item format information from the equipment. This simplifies the manual process of configuring the host to define reports, gather data and monitor the equipment.  

HostConnect can be used by equipment OEMs to build sophisticated and robust factory-side testing tools for their GEM interfaces. It combines the familiarity and power of .NET with the flexibility of the various abstraction layers to allow custom test scenarios to be easily created and maintained. No special scripting language is required.

The Cimetrix HostConnect tool kit offers:

  • Multi-layer architecture
  • Standards-based modules that encapsulate GEM quipment capabilities
  • High-level configuration utility
  • Dynamic configurable data types and communications settings
  • Native .NET programming language design
  • Management of message timeouts and transactions
  • Built-in library of SECS-II message classes
  • Ability to support custom message formats

We are available to support your project

When you use one of our products, our goal is to allow you to control your own destiny. You get our dedicated, passionate support throughout the entire development process. We recommend product training to get your team up to speed quickly. If needed, we also have engineering personnel to work with you on project planning, engineering design and initial deployment. Talk to us. Let us know your project requirements to see if Cimetrix HostConnect is a good solution for you.

Supported Industry Standards

  • SEMI E5 SECS-II - SEMI Equipment Communications Standard 2
  • SEMI E30 GEM - Generic Model for Communications and Control
  • SEMI E37 HSMS-II - High-Speed SECS Message Services
  • SEMI E173 - SECS Message Notation (SMN)