Delta Controls DNS-24 Application Manual
Also see for DNS-24: Application guide
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Document Edition 4.2 Page 1 of 43APPLICATION GUIDEDelta Network Sensor / Thermostat: BACstat IIDNS-24, DNT-T103 & DNT-T221Document Edition 4.2Product DescriptionThe BACstat II is a line of network room sensors/thermostats with a customLCD display and pushbutton interface. They can communicate directly on aBACnet MS/TP network or Delta’s proprietary LINKnet network.They are capable of displaying a wide-range of digital or analog values,including setpoints, temperature, air flow, heating and cooling status, fanspeed, valve and damper position, and more. When connected on a BACnetMS/TP network they function as independent BACnet sensors or thermostats.When connected to a Controller on a LINKnet network they provideprogrammable remote sensor and expanded I/O capabilities. BACstats that arehardware revision 4 or greater can be flash loaded over the network, and havetermination resistors that are jumper selectable.The DNS-24 models are network sensors they have multiple onboard sensor options including temperaturehumidity, CO2 and motion, but do not have any outputs or internal control algorithms. The DNT-T103 has 1extra input, 3 binary outputs and a number of built-in application control strategies. The DNT-T221 has 2extra inputs, 2 analog and 1 binary output and built-in application control strategies. As a result, DNTBACstats are capable of stand-alone control when directly connected on an MS/TP network.ContentsOTHER RELEVANT DOCUMENTS .................................................................................................. 2IMPORTANT INFORMATION .......................................................................................................... 2SETUP & CONFIGURATION ............................................................................................................. 2NETWORK COMMUNICATIONS ........................................................................................................... 2DEVICE CONFIGURATION (KEYPAD) .................................................................................................. 2SERVICE TOOL MODE (KEYPAD) ....................................................................................................... 7INPUT CALIBRATION .......................................................................................................................... 8INPUT SCALE RANGES ...................................................................................................................... 8SOFTWARE & PROGRAMMING...................................................................................................... 9OBJECTS............................................................................................................................................ 9PROGRAMMING ............................................................................................................................... 12CONTROL FUNCTIONS ................................................................................................................... 13OVERVIEW ...................................................................................................................................... 13SOFTWARE LOOP CONTROLLER ....................................................................................................... 15SETPOINTS ...................................................................................................................................... 19CONTROL DIAGRAM ........................................................................................................................ 20CONTROL APPLICATIONS (MUX, VAV, VVT, HPU, FCU, RAD, HUM) ............................................ 21OUTP UT FUNCTIONS & TYPES ......................................................................................................... 29OWS FUNCTIONS .............................................................................................................................. 34APPENDIX A: PROGRAMMING NOTES.................................................................................................... 31APPENDIX B: LINKNET......................................................................................................................... 32 |
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