Troubleshooting Bacnet Ms/Tp Communication; Bacnet Arc156; To Set Up The Wshp Open For Bacnet Arc156 - Carrier WSHP Open v3 Integration Manual

Troubleshooting BACnet MS/TP communication

For detailed troubleshooting and a list of supported objects, get the controller's BACnet PICS from the Carrier
BACnet PICS website http://www.bacnetinternational.net/catalog/index.php?m=28. You must get your BACnet
Object list from the manufacturer.
The most common communication problems are the result of not properly following the configuration steps
outlined in this manual. Review all of the steps and use the following list to check your settings.
Verify accuracy of the following:
Hardware settings for BACnet MS/TP (8 Data bits, No Parity, and 1 Stop bit):
•
Baud rate DIP switches DS2 and DS1
•
BACnet MS/TP protocol DIP switches DS3 - DS6
•
Jumper set to EIA-485
•
Proper connection wiring
•
Unique rotary address switches 1 – 99. If controllers have duplicate addresses, network communication can
be lost.
•
Unique BACnet Device Instance numbers. Default is 16101XX, with the rotary address switches defining XX. If
controllers have duplicate device instance numbers, network communication can be lost.
NOTES
•
The controller recognizes physical changes (DIP switches, rotary switches, and jumpers) upon power up.
•
If RX LED is solid, then the terminations are incorrect.
•
If the network has greater than 32 devices or exceeds 2,000 feet, a Repeater should be installed.
•
If a controller begins or ends a network segment, a terminating resistor may be needed.

BACnet ARC156

To set up the WSHP Open for BACnet ARC156

The WSHP Open's latest supported function codes and capabilities are listed on the associated Protocol
Implementation Conformance Statement (PICS), Carrier BACnet PICS website
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 BACnet MS/TP MAC address for the
2
WSHP Open. 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.
WSHP Open v3
Integration Guide
11
Communications wiring
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