Appendix E: LonWorks Protocol Implementation Conformance Statement
WSHP Open v3
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Integration Guide
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50
Date: 11/12/2013
Vendor Name:
Carrier
Product Names:
WSHP Open
Product Model Number:
Water Source Heat Pump
Product Description:
The WSHP Open is a factory-installed water source heat pump controller that is capable of speaking multiple
protocols. When the LonWorks Option Card (LON-OC), is installed in the field, it enables the WSHP Open to
communicate over a LonTalk network. The WSHP Open does not conform to a standard LonWorks profile, but is
self-documenting and any network management tool can manage and configure it over the network. An external
interface file (.XIF), is also available so that any network management tool can design and configure the WSHP
Open prior to installation. Contact your Carrier representative for this .XIF file.
LonWorks is an open protocol that requires the use Echelon's Neuron microprocessor to encode and decode the
LonWorks packets. In order to reduce the cost of adding the Echelon chip to every module, a separate LonWorks
Option Card (LON-OC) was designed to connect to the WSHP Open.
This accessory card must be ordered separately and is connected by attaching its ribbon cable into the
J15
connector on
the WSHP Open. The WSHP Open’s baud rate (
1
and
2
on
SW3
) must be set to 38.4k to
communicate with the LON-OC. The address switches (
SW1
and
SW2
) are not used with LonWorks.
Tranceiver Type
: TP/FT 10
Appendix E: LonWorks Protocol Implementation Conformance Statement
