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Installation
Configuring for BACnet MS/TP
Refer to Appendix B for the Protocol Implementation Conformance Statement, or download the latest from BACnet
International http://www.bacnetinternational.net/catalog/index.php?m=28.
Turn off the WSHP Open's power.
1
NOTE Changes made to the switches when the controller is on will not take effect until the power is cycled!
Using the rotary switches MSB (SW1) and LSB (SW2), set a unique MS/TP MAC address for the WSHP Open.
2
Set the MSB (SW1) switch to the tens digit of the address, and set the LSB (SW2) switch to the ones digit.
Valid addresses are 01-99.
NOTE The rotary switches also determine the BACnet device instance of the controller on the BACnet
network. The BACnet device instance is automatically generated based on the scheme 16101xx, where "16"
is the BACnet vendor ID for Carrier Corporation, and xx equals the rotary switch address.
EXAMPLE To set the controller's MS/TP MAC address to 01, point the arrow on the MSB (SW1) switch to 0
and the arrow on the LSB (SW2) switch to 1. Internally, the BACnet device instance is automatically
generated as 1610101.
Set the SW3 Comm Selector DIP switches DS1 and DS2 for the appropriate communications speed (9600,
3
19.2k, 38.4k, or 76.8k bps).
NOTE Use the same baud rate and communication settings for all controllers on the network segment. The
WSHP Open is fixed at 8 data bits, No Parity, and 1 Stop bit for this protocol's communications.
Baud Selection Table
Baud Rate
9,600
19,200
38,400
76,800
Set SW3 Comm Selector DIP switches DS3 through DS6 for BACnet MS/TP. See table and example below.
4
Leave DS7 and DS8 in the OFF position. These switches are not applicable to MS/TP.
5
SW3 Protocol Switch Settings for MS/TP
DS8
Off
6
SW3/DS2
SW3/DS1
Off
Off
On
Off
Off
On
On
On
DS7
DS6
DS5
Off
Off
Off
DS4
DS3
On
Off
WSHP Open v3
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