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Fieldbus Foundation’s H1 Conformance Test Kit H1 CTK 3.0 provides enhanced capabilities for development and testing of Foundation fieldbus H1 (31.25kbit/s) device communications stacks.

It has been updated to support a current hardware platform and operating systems, and expanded test case functionality.

The H1 CTK is a complete testing solution enabling fieldbus device developers to ensure their H1 communication stack conforms to the Fieldbus Foundation’s test requirements.

The fieldbus communication stack is the messaging component of a field device.

The stack is composed of the data link layer, the fieldbus access sub-layer, the fieldbus message specification and system/network management agents.

All stack conformance testing is performed by the Fraunhofer IOSB, a non-profit testing agency located in Karlsruhe, Germany, as a prerequisite for official registration.

Enabling troubleshooting and debugging of a range of fieldbus instrumentation, the H1 CTK will verify the correct communication behaviour of an H1 device as defined in the Foundation fieldbus specifications.

The latest version of the H1 conformance test kit, H1 CTK 3.0, includes a platform upgrade with support for current hardware such as PCI and PCMCIA NI-FBUS cards.

The kit has also undergone a test engine code update to 32 bit.

In addition, its enhanced user interface provides support for Windows XP/Vista operating systems.

The H1 CTK 3.0 offers improved testing functionality, with each test case acting as a separate, modular application.

Users can now compile and edit test cases according to their own development purposes.

With the included Visual Studio 2008 solution, they can also take full advantage of the powerful MS Visual Studio debugging tools to track down any stack implementation bugs.

The H1 CTK 3.0 is intended for device developers who purchased a licence for the original H1 conformance test kit and want to upgrade to the latest stack testing technology.

The H1 stack conformance test consists of a suite of automated and manual test procedures.

The automated test procedures validate both Fieldbus Message Specification (FMS) and System Management (SM) messaging.

The test system validates that the messages for the different services are both formed and decoded correctly by the stack-under-test (SUT).

Other testing procedures validate the data structures present in the device’s Object Dictionary (OD) are conformant to the current Foundation specifications.

Additional tests examine the distribution and synchronisation of the application time clock.

Those stacks classified as a Link Master undergo special testing to validate Link Active Scheduler (LAS) functionality.

The H1 CTK 3.0 is available now to companies signing a new licence agreement and to current licence holders wishing to obtain the updated kit at a discounted price.

Fieldbus Foundation

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