Member Directory


Sierra Monitor Corporation
1991 Tarob Court
Milpitas  CA  95035
United States
Tel: +1 408-262-2299
Fax: +1 408-262-9042

Sierra Monitor Corporation Logo

Sierra Monitor Corporation designs and manufactures protocol translators. The FieldServer protocol translator enables different devices and networks to interface to each other. FieldServer gateways enable non-LonWorks® devices to interface to the LonWorks network providing an extension of the LonWorks system to a wide range of devices in both industrial and the building automation industries. The extensive library of drivers available for the FieldServer makes it easy for the user to interface new devices to their LonWorks network. In the building automation industry FieldServer drivers enable interface to such devices as boilers, chillers, energy management systems, fire alarm systems and more. Industrial control drives include DH+, ControlNet, DeviceNet, Modbus Plus, EtherNet/IP and many more. The FieldServer Gateway has helped many integrators achieve the interoperability goals set by the user.

LonMark Contact Information:

Richard Theron
Product Manager - FieldServer
Tel: +1 408-262-2299
E-mail: rtheron(a)


Listing of LonMark Certified Products:


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Sierra Monitor Corporation
joined LonMark as a Member over 15 years ago.


Membership to LonMark International is open to any company, organization or individual committed to the development, manufacture, and use of interoperable open, multi-vendor control systems utilizing ISO/IEC 14908-1 and related standards.

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