Related Manuals for Viconics VT76 Series
Summary of Contents for Viconics VT76 Series
- Page 1 PIR Ready VT76xx Series With & Without Scheduling Controllers For Commercial HVAC Applications BACnet Integration Manual ITG-VT76xx-PIR-BAC-E02 (028-6015_R2 Issue Date: January23, 2011)
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Page 2: Table Of Contents
Fig.1 - VT7600 Series The controllers are also compatible with the new Viconics PIR cover accessories. Controllers equipped with a PIR cover provide advanced active occupancy logic, which will automatically switch occupancy levels from Occupied to Unoccupied as required by local activity being present or not. - Page 3 VT7600 series Protocol Implementation Conformance Statement (PICS) Vendor Name: Viconics Vendor ID: 140 Product Name: VT7600 Controller Series VT7600A5X00B, VT7600B5X00B, VT7605B5X00B, VT7607B5X00B, Product Model Number: VT7600H5X00B, VT7652A5X0B, VT7652B5X00B, VT7656B5X00B, VT7657B5X00B, VT7652H5X0B, VT76X6E5X00B, VT76X6F5X00B and VT76X6W5X00B. Product Description: The VT76xx series BACnet communicating controller have been specifically designed for RTU and heatpump applications to be monitored on a BACnet MS-TP®...
- Page 4 Device Object Table Type and Object Name Object Property Controller Parameter Instance VT76xxX5x00B Device Object_Identifier Unique ID number of a device on a network Property 75 (R,W) Object_Name Unique name of a Device on a network Property 77 (R,W) Model Name Controller Model number Property 70 (R) Firmware Revision...
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Page 5: Objects Table
Objects Table Type Object Object Name Property Instance Room Present_Value √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ AV 7 Temperature (R,W) Room Temp Present_Value √ √ √ √ √ √ √ √... - Page 6 Type Object Object Name Property Instance Present_Value √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ PI Heating Demand AV 20 Present_Value √ √ √ √ √ √ √ √ √ √ √ √...
- Page 7 Type Object Object Name Property Instance Present_Value √ √ √ √ √ √ √ √ Clock Alarm BI 37 Present_Value √ √ √ √ √ √ √ √ √ √ √ √ √ √ Filter Alarm BI 38 Present_Value √ √...
- Page 8 Type Object Object Name Property Instance Present_Value √ √ √ √ √ √ √ √ √ √ √ √ √ √ Aux Contact BV 56 (R,W) Present_Value √ √ √ √ √ √ √ √ √ √ √ √ √ √...
- Page 9 Type Object Object Name Property Instance Present_Value √ √ √ √ √ √ √ √ Heating Stages MV 73 (R,W) Present_Value √ √ √ √ √ √ √ √ √ √ Cooling Stages MV 74 (R,W) Present_Value √ √ √ √...
- Page 10 Type Object Object Name Property Instance Dehumidification Model Present_Value √ √ GRP 87 Configuration Options Present_Value √ √ √ √ RH Display BV 88 (R,W) Dehumidification RH Present_Value √ √ √ √ AV 89 Setpoint (R,W) Dehumidification Present_Value √ √ √...
- Page 11 Type and Object Object Name Instance Property Minimum CO2 Present_Value √ √ AV 100 Level (R,W) Present_Value √ √ Humidifier Output AV 101 Maximum CO2 Present_Value √ √ AV 101 Level (R,W) Present_Value Local Schedule SCH 102 √ √ √ √...
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Page 12: Standard Object Types Supported
Note: Please note that some object type and instant numbers have the same object name. Therefore please make sure to see the table above for more detailed information on each controller model. Standard Object Types Supported Optional Supported Dynamically Dynamically Writable Object Type Properties... -
Page 13: List Of Property Value Range
List of Property Value Range Restrictions for AI and AV objects Object Type Under range Over range Object name Default value and instance value value Room Temperature AV 7 -40°F (-40°C) 122°F (50°C) Outdoor Temperature AV 9 -40°F (-40°C) 122°F (50°C) Room Humidity AV 11 100%... - Page 14 Object Type Under range Over range Object name Default value and instance value value Dehumidification Hysterisys AV 90 Dehumidification Low OA Lockout AV 91 -40°F (-40°C) 122°F (50°C) 32°F (0°C) Humidification RH Setpoint AV 95 Minimum Supply Heat Setpoint AV 95 50°F(10°C) 72°F(20°C) 64°F(18°C)
- Page 15 List of Property Enumeration Sets for BI and BV objects Object Type and Default Object Name Inactive_Text Active_Text instance value Room Temp Override BV 8 Normal Override Normal Outdoor Temp Override BV 10 Normal Override Normal Room Humidity Override BV 13 Normal Override Normal...
- Page 16 Object Type and Default Object Name Inactive_Text Active_Text instance value Supply Heat Lock Status BI 58 Inactive Fan Control BV 62 Fan Purge Delay BV 64 Progressive Recovery BV 70 Active Discharge Air Alarm BI 72 Mechanical Cooling BV 79 Enabled Comfort Mode BV 84...
- Page 17 List of Property Enumeration Sets for MV Objects Object Object Name Type and BACnet Index Text Default value instance Local Occupancy Occupancy MV12 Occupied Local Occupancy Command Unoccupied Auto System Mode HPU MV13 Cool Auto Heat Emergency Auto System Mode RTU MV14 Auto Cool...
- Page 18 Object Object Name Type and BACnet Index Text Default value instance 0 minute 1 minute 2 minutes Anticycle MV63 2 minutes 3 minutes 4 minutes 5 minutes None RemNSB RemOVR DI1 Configuration MV65 None Filter Service Fan lock None RemNSB RemOVR DI2 Configuration MV66...
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Page 19: Integration - Global Commands
Integration – Global Commands The following figure shows which objects from the controller can be monitored and commanded from the BAS front- end. Global commands all devices ( All thermostats ) Outdoor Temperature Outdoor Temperature (AV9) Outdoor Temperature and HVAC plant current mode System Mode (MV13) BAS current energy savings mode Fan Mode (MV15) -
Page 20: Integration - Graphic User Interface (Gui) Objects
Integration – Typical Graphic User Interface (GUI) Objects The following objects should be typically used in a GUI: Room Temperature (AV7); Occupied and Unoccupied Heat Setpoints (AV 42 and AV44); Occupied and Unoccupied Cool Setpoints (AV 43 and AV45); Outdoor Temperature (AV9); Supply Temperature (AI16) (If available);... -
Page 21: Wiring Guide
Humidification Model Configuration Option Group GRP 94 and its complete list of objects; If your BAS allows you to remove objects from your database, Viconics recommends removing all configuration objects once your setup is complete. This will prevent unnecessary polling of non used objects and will help speed up the network. -
Page 22: Network Configuration
Other methods of wiring an EIA-485 network may give unreliable and unpredictable results. There are no troubleshooting methods for these types of networks. Therefore, a great deal of site experimentation may have to be done, making this a difficult task with no guarantee of success. Viconics will only support daisy chain configurations. -
Page 23: Maximum Number Of Devices
Using proper cable, the maximum length of an EIA-485 daisy chain is 4000-ft (1200 m). This will only work reliably for data rates up to 100,000 bps. Viconics’ maximum data rate is 76,800 bps. If you require a maximum network length of more than 4000 feet, then repeaters are required to extend the network. - Page 24 Figure 5: Correct usage – repeaters are daisy chained to the supervisory controller and separate daisy chains branch from each repeater. Do not install repeaters in series, as this may result in network reliability problems. Figure 6 demonstrates an incorrect use of a repeater in an EIA-485 network. Figure 6: Incorrect usage –...
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Page 25: End Of Line Resistors
Viconics’ devices are installed at both ends of the MSTP network: 120 Ohms resistor should be installed at each end. • A Viconics device is installed at one end of the MSTP network and a 3 party device is installed at the other end: Install an End-Of-Line resistor value that matches the 3rd party devices instructions regarding its EOL resistor value;... - Page 26 Device Name will be VT7600B5x00B-63 and its default Device ID will be 76063. Device Name and Device ID properties are writable in Viconics’ device object. Both properties can be renamed from any BACnet network management tool as long as the tool itself can write to these properties.
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Page 27: Integrating Viconics' Devices On An Mstp Network
This PICS document lists all the BACnet Services and Object types supported by a device and can be found at www.viconics.com. Viconics’ devices do not support the COV service. COV reporting allows an object to send out notices when its Present-Value property is incremented by a pre-defined value. Since this is not supported at Viconics’ end, special attention should be given to the polling time settings at the Supervisory Controller and Workstation level when using a graphic interface or an application program to read or write to a Viconics’... -
Page 28: Tips And Things You Need To Know
TimeSynchronization - B (DM-TS-B) service. The device object does not have the Local_Time or Local_Date properties. Device Name and Device ID properties are writable in Viconics’ device object. Both properties can be renamed from any BACnet network management tool as long as the tool itself give access to write to... -
Page 29: Troubleshooting Section
Troubleshooting Section Error / Trouble Possible Cause Solution Condition Two or more controllers have the same Modify each duplicate address to a MAC address. unique number. The MS/TP network has too many Do not exceed the maximum number of devices. devices and maximum length allowed by the EIA-485 specifications.