Delta DNS-14 Benutzerhandbuch

Document Edition 1.9 Page 1 of 12

INSTALLATION & APPLICATION GUIDE

Delta Network Sensor: BACstat I

DNS-14 (Rev 1.6)

Document Edition 1.9

Product Description

The DNS-14 BACstat I is an intelligent room sensor with four buttons and

a 3-digit LCD display that is used with Delta’s product line of BACnet

Application Controllers. It is capable of communicating on Delta’s

proprietary LINKnet network or directly on a BACnet MS/TP network

using the MS/TP BACnet protocol.

When connected to an Application Controller on a LINKnet network the

DNS-14 provides programmable remote sensor capabilities to the

controller. Up to 12 devices may be connected to the LINKnet network,

depending on the controller, where associated BACnet objects located in

the Application Controller make the DNS-14 accessible to the rest of the

system. These same objects in the Application Controller are used in

programming each DNS-14 for various functions and applications.

When connected on an MS/TP network the DNS-14 functions as an independent Native BACnet sensor

device, similar to any other MS/TP device. Each DNS-14 is configured for operation (including the use of its

buttons and display), and can receive commands for mode and setpoint changes from another device across

the network (i.e., DCU or other System Controller with V3.22 firmware).

Model Numbers

Product Number Product Description

DNS-14 Standard Model (with default button template)

The appended button template codes specify the desired icons embossed on the template as follows:

[default] Bottom 2 buttons are ▼and ▲(Setpoint Adjust), top 2 are OFF and ON

INT Bottom 2 buttons are ▼and ▲(Setpoint Adjust), top 2 are Oand I– International

Package Contents

•Delta Network Sensor: BACstat I Product, DNS-14 (Rev 1.6)

•DNS-14 (Rev 1.6) Installation Guide

Delta Network Sensor: BACstat I DNS-14 (Rev 1.6) Installation Guide

Page 2 of 12 Document Edition 1.9

Other Relevant Documents

•RS-485 Network Installation Guide (DOC818-11)

•ORCAview Operator Guide (V3.21 or later)

•ORCAview Technical Reference Manual (V3.22 or later)

•Release Notes for V3.21 Firmware, V3.22 Firmware, and BACstats

Product Specifications

Power Requirements

•24 VAC

•2 VA

•Class II

Ambient Ratings

•32º to 131º F (0º to 55º C)

•10 to 90% RH (non-condensing)

Communication Port

LINKnet Connection

•Communications Speed @ 76,800 bps

•Maximum of 12 devices (depending on the controller)

BACnet MS/TP Connection

•Communications Speed @ 9,600 or 19,200 or 38,400 or 76,800 bps (the default)

•Maximum of 99 nodes per MS/TP segment (50 without a repeater)

Input (Temperature Sensor)

•Thermistor Input – 10,000 ohm @ 77 ºF (25 ºC)

•Accuracy of +/- 0.36 ºF from 32 - 158 ºF (+/- 0.2 ºC from 0 - 70 ºC)

•Display Resolution of 0.1 º

•Stability of 0.24 ºF over 5 years (0.13 ºC)

Technology

•8-bit Processor c/w internal A/D, Flash, and RAM

•3-digit LCD (7 segment characters)

•4 momentary push buttons with tactile feedback

Device Addressing

LINKnet Connection

•Set via Keypad Configuration Setup

•Address Range: 1 to 12

BACnet MS/TP Connection

•Set via Keypad Configuration Setup, or Software Setup

•Keypad Address Range: 1 to 99 per network segment

•Software Address Range: As per the BACnet standard

•Supports DNA – Delta’s intuitive addressing scheme

Delta Controls

Document Edition 1.9 Page 3 of 12

Size

•4.5” x 2.75”x 1” (11.4 cm x 7 cm x 2.5 cm)

Weight

•0.16 lb. (71 g.)

PCB Board Layout & Wiring

NOTE: Do not use 4-wire multi-conductor cable. It will not meet the balanced cable

requirements for the MS/TP or LINKnet networks. Use two separate cables: one for

the network and the other for power.

Network

2-Wire Connection

(MS/TP or LinkNet)

Power

2-Wire Connection

(24 VAC)

Network Notes:

Ensure you use the specified balanced cable

and follow documented RS-485 installation

guidelines for MS/TP or LinkNet networks.

Do not terminate the shield on the BACs tat,

but ensure conductivity is maintained.

Power Notes:

If connected to LinkNet, Power may be

supplied from the Power Out port on a DAC

product.

Ensure polarity is observed when the same

transformer is connected to more than one

device.

If the same transformer is used for more than

one device, ensure it is sized properly.

Delta Network Sensor: BACstat I DNS-14 (Rev 1.6) Installation Guide

Page 4 of 12 Document Edition 1.9

Mounting

The DNS-14 backplate is designed for mounting directly on a standard North American electrical box, but

may be mounted in other ways as well.

Power

The DNS-14 BACstat requires a 24 VAC @ 2 VA power supply, typically an isolated Class II transformer.

More than one device – not including DCUs or V2 products – may be connected to the same transformer,

providing the transformer is properly sized, including line losses, and polarity is observed between controllers

(in regards to 24~ and GND). The transformer must ONLY be used to provide power to other MS/TP or

LINKnet devices. Auxiliary field devices (i.e., 4-20 mA devices) that don’t use ½ wave rectification must be

powered separately.

Network & Cabling Requirements

To ensure network stability and reliable communications, particularly at high speeds on the RS-485 MS/TP or

LINKnet networks, it is imperative that you adhere to the following network and cabling requirements:

Item Description

Cabling For MS/TP and LINKnet networks it is recommended that you use network cabling that

matches the following specifications:

•Balanced 100 to 120 ohm nominal impedance Twisted Shielded Pair (TSP) Cable

•Nominal capacitance of 16 PF/FT or lower

•Nominal velocity of propagation of 66% or higher

Topology For MS/TP and LINKnet networks, ensure the cable is installed as a daisy-chain from one

device to the next.

Max. Nodes •MS/TP: The maximum number of devices per MS/TP network without any repeaters is 50.

•LINKnet: The maximum number of devices per LINKnet network is 12, depending on the

Application Controller used. Refer to Appendix G in the Technical Reference Manual.

Termination

Boards •MS/TP: A termination board (TRM-768) must be installed at each end of each MS/TP

network segment – or two per MS/TP or LINKnet network. Ensure you do not overlook this

in laying out your network architecture and ordering product.

•LINKnet: Termination boards need not be installed for only one or two nodes.

However, install a termination board on each end of the network when there are more

than 2 nodes.

Repeater •MS/TP: A repeater (RPT-768) is not necessary unless more than 50 nodes will be installed

on a network or you need to extend the network beyond 4000 ft (1220 m).

•LINKnet: Repeaters should not be necessary. Ensure the maximum distance is no

more than 1000’ (300 m).

For more detailed information, including wiring, refer to the RS-485 Network Installation Guide (DOC818-11).

Delta Controls

Document Edition 1.9 Page 5 of 12

Network Topology

1. BACstats Configured as MS/TP Subnet Devices

With V3.21 firmware or higher, one possible MS/TP network architecture has the MS/TP devices configured as

Subnet devices, allowing BACstats to reside on the MS/TP network with other Subnet devices. Note that

V3.21 requires a DCU, while V3.22 or higher may use any System Controller instead.

2. BACstats Configured as LINKnet Devices

The BACstat may reside on LINKnet instead of MS/TP. However, this requires a controller that supports a

LINKnet network for I/O expansion. The maximum LINKnet devices with or without I/O depends on the

controller.

DCU/DSC

(System Device)

BACnet (MS/TP) - Level 3 Network (Subnet)

DAC

(Subnet

Device)

TRM

DAC

(Subnet

Device)

TRM

Level 4

Network

(LINKnet)

16x16 Controller

12x12 Controller

12x8 Controller

6x6 Controller

Room Controller

VAV/VVT Controller

Lighting Controller

BACstat I

BACstat II

(with or without I/O)

Input Field Modules

Subnet Devices

DSC-1616EX [DCU]

DSC-1616(H/E)

DSC-1212(H/E)

DSC-1280(H/E)

DSC-T305

System Devices RS-485

NET1 NET2 NET1 NET2

RS-232

BACstat I

BACstat II

(with No I/O)

BACstat II

(with muxed I/O)

I/O Field Modules

LINKnet Devices

TRM

Level 4

Network

(LINKnet)

DFM

TRM

LINKnet Notes:

1. Ensure you use the recommended

balanced cable.

2. Ensure the cable is installed as a

daisy-chain from one device to the

next. (1000' or 300m maximum).

3. Ensure you install MS/TP terminator

boards when you have more than 1 or

2 devices.

4. Depending on the controller, up to 12

devices are supported on a LINKnet

network, with limitations on how many

of these may have I/O. (Refer to

the Technical Reference Manual.)

ORCAview

OWS

DFM

Ethernet Note:

If the DCU or DSC has Ethernet capability, it may exist on an

Ethernet network with other controllers in the same building, on which

the ORCAview OWS could reside as well (instead of PTP).

PTP

MS/TP Notes:

1. Ensure you use the recommended balanced cable.

2. Ensure the cable is installed as a daisy-chain from one device to

the next (4,000' or 1220m maximum).

3. Ensure you install an MS/TP terminator board (TRM-768) on each

end of each MS/TP network.

4. The maximum nodes per MS/TP network is 50 without a repeater,

or up to 99 with at least one repeater (RPT-768).

Network Diagram

(with V3.22 Firmware)

Delta Network Sensor: BACstat I DNS-14 (Rev 1.6) Installation Guide

Page 6 of 12 Document Edition 1.9

Network Communications Setup

BACstats communicate on an MS/TP network at a default speed of 76,800 bps. Refer to the ORCAview

Technical Reference Manual for further detail on configuring the MS/TP network or changing baud

rates, etc.

On LINKnet, BACstats communicate at 76,800 bps. Refer to the ORCAview Technical Reference

Manual for further detail on the NET1 object located in the MS/TP Application Controller.

Device Configuration

1. Configuration Menu PIN Access Code

Access to the Configuration Menu is protected by an access code or PIN. You must enter the valid PIN before

access is granted, which works as follows:

•First press the Up Arrow (▲), and then press the Down Arrow (▼) while still pressing the Up Arrow, and

hold them both down for at least 5 seconds.

•When the Pin

PinPin

Pin text is displayed you are being prompted for the valid PIN or access code, a pre-configured

4-digit code, which you must enter before you can gain access to the Configuration Menu. The buttons on the

left side of the Stat have a value of 0, while the buttons on the right side have a value of 1. Press the proper

button sequence to match the password.

•The default PIN is 1011.

NOTE: The PIN access code, contained in AV31, can be changed through the OWS when the BACstat is

connected to an MS/TP network, but not over LINKnet or through the keypad.

•Once you have entered the valid 4-digit code you will gain access to the Configuration Menu, and CFg

CFgCFg

CFg will be

displayed immediately to indicate you are now in Configuration mode. If you haven’t entered a valid code (or

if you do not press a button within 10 seconds), the process will be aborted and you will be returned to normal

display mode.

2. Button & Navigation Functions

The Button functions are as follows within the Configuration Menu:

Button Description

Top Left •Represents a value of 0 when entering the PIN access code.

•ESC (or abort) the current setting (and go to the next menu item, without making

any changes).

Top Right •Represents a value of 1 when entering the PIN access code.

•ENTER the current setting (and go to the next menu item).

Bottom Left

(Down: ▼)•Represents a value of 0 when entering the PIN access code.

•Rotates downward through menu items and options.

•Decreases a numeric value with each button press.

Bottom Right

(Up: ▲)•Represents a value of 1 when entering the PIN access code.

•Rotates upward through menu items and options.

•Increases a numeric value with each button press.

Both Arrows

(▼and ▲)•ENTER, both simultaneously (an alternate method, particularly necessary for

2-button models, or when entering the PIN).

Delta Controls

Document Edition 1.9 Page 7 of 12

Use the arrow buttons to navigate through the menu options. Once you have navigated to the desired item you

wish to display or change, wait a brief moment for the current value to begin blinking, whereby you can use the

arrow buttons to make any necessary changes. Once the changes are made or you wish to move on, press ENTER.

3. Configuration Menu Options

The Configuration Menu is a list of items which you can navigate through and make changes to as you need for

setup purposes. You may use either the down arrow or the up arrow to navigate through the menu items (in

direct or reverse order). Waiting momentarily on an item will eventually display the current setting and allow

you to make changes. The Configuration Menu items are as follows:

Menu Item Description

CFg

CFgCFg

CFg Displayed momentarily to indicate you have successfully entered the Configuration

Menu.

DEG

DEGDEG

DEG The Temperature Units Setting (C or F).

DSP

DSPDSP

DSP The LCD Display Code Setting (AV15) configures local display and button

handling and has the following definitions:

1.0 No Value. The LCD & buttons are fully available for remote programming.

2.0 Local Temperature (AI1) only is always displayed.

3.0 Local Setpoint (AV6) only is always displayed, and can be adjusted.

4.0 Temperature is displayed by default, and pressing an arrow button displays

the Setpoint for adjustment.

5.0 Temperature and Setpoint are alternated on the display every 2 seconds, until

pressing an arrow button displays just the Setpoint for adjustment.

6.0 Setpoint only is always displayed, but cannot be adjusted.

7.0 Temperature is displayed by default, and pressing an arrow button displays

the Setpoint for 3 seconds but cannot be adjusted.

8.0 Temperature and Setpoint are alternated on the display every 2 seconds, but

the Setpoint cannot be adjusted.

NOTE: When connected to LINKnet the Display Code should be set to 1.0 (whereby

the display and buttons are controlled through GCL in the host DAC device), while

a setting of 4.0 is a typical choice when connected directly to an MS/TP network.

Lnt

LntLnt

Lnt The LINKnet Communications Setting (On or Off), to match the connection

method. When turned On the network communications is set to LINKnet, and when

Off the communications is set to MS/TP.

dNA

dNAdNA

dNA The DNA Setting (On or Off), for inheriting a derived address from higher-up

devices on an MS/TP network, or not.

Add

AddAdd

Add The device Address (1 to 99), which is used internally as the MAC Address. As the

BACstat can only be a Subnet device on MS/TP, this address is always mapped in as

the Subnet value. On LINKnet, this address is the physical address for the device

(limited to 1 to 12) and the other address settings are irrelevant. Note: On MS/TP

the complete BACnet address is in the form of “OEM_Area_System_Subnet”

SYS

SYSSYS

SYS The System number (0 to 99), which can only be set manually when on MS/TP and

DNA is turned off – and is inherited when DNA is on.

ArE

ArEArE

ArE The Area number (0 to 99), which can only be set manually when on MS/TP and

DNA is turned off – and is inherited when DNA is on.

OEM

OEMOEM

OEM The OEM number (0 to 3), which can only be set manually when on MS/TP and

DNA is turned off – and is inherited when DNA is on.

BAU

BAUBAU

BAU The Network Speed (9,600 or 19,200 or 38,400 or 76,800 bps). The default for both

LINKnet and MS/TP is 76,800 bps. While the baud rate for MS/TP devices may

need to be adjusted to suite, the speed for LINKnet networks should remain at

76,800 bps.

Delta Network Sensor: BACstat I DNS-14 (Rev 1.6) Installation Guide

Page 8 of 12 Document Edition 1.9

Menu Item Description

End

EndEnd

End To exit the Configuration Menu (Yes or No). Otherwise, if you do not press a

button within 1 minute the device will automatically exit and return to its display

mode. All changes are always saved (or set) however you exit.

Calibration Mode (for the Temperature Sensor Value)

•To enter Calibration mode, first press the Down Arrow (▼), and then the Up Arrow (▲), and hold them

both down for at least 5 seconds. No PIN or access code is required to enter into Calibration mode.

•You may now adjust the calibration of the temperature from -9.9 to 99.9 (which acts as a bias to the display

value) using the Down (▼) and the Up (▲) Arrows.

•Press the ENTER button sequence to accept the adjusted value and exit Calibration mode.

Application Notes

OBJECTS

The following is a list of predefined or “fixed” objects that reside in the DNS-14, which you cannot create

or delete. When connected to an MS/TP network, these objects are readily accessible over the network.

When connected to a LINKnet network, many of these objects are mapped into matching AI or AV objects

residing in the Application Controller above.

Object Name Description Default Value

DEV1 BACstat * Device Object N/A

AI1 Temperature Input 1 (10K Thermistor Value) N/A

AV4 KeyPress KeyPress Value N/A

AV5 External * External Object Value (i.e., OAT) N/A

AV6 Setpoint Room Setpoint ºC = 21; ºF = 71

AV7 Day Min Minimum Adjustable Day Setpoint ºC = 18; ºF = 65;

AV8 Day Max Maximum Adjustable Day Setpoint ºC = 25; ºF = 77

AV13 Alg Mode Algorithm Mode 0 (Off or Night)

AV15 Display Code Local Display & Button Handling 1 (Disabled)

AV16 AI1 Calibration Input 1 Calibration (Temperature) 0.0

AV30 Baud Rate Network Baud Rate 76,800 bps

AV31 PIN PIN (Configuration Access Code) 1011

* Names are User settable (to a maximum of 8 characters)

PROGRAMMING

MS/TP CONNECTION

Objects

All of the predefined objects are readily accessible over the MS/TP network. Note that you can

modify the name of some of the objects to something perhaps more suitable for the application.

Delta Controls

Document Edition 1.9 Page 9 of 12

GCL Programming

BACstats are not programmable devices – GCL does not reside in a BACstat. Rather, when

connected to an MS/TP network you configure a BACstat for local operation and write GCL located

elsewhere as necessary to do additional functions. In this way you configure the BACstat for local

operation (both display & button handling and local control) and then write any necessary GCL in

another controller for additional strategies.

For example: Through the Configuration Menu, you typically configure the DNS-14 display and

buttons to functional locally, so GCL programs are not necessary for handling the display value or

adjusting setpoint (i.e., AV15 = 4.0). Then, using GCL programming located in another controller

(i.e., DCU or other System Device) you make mode and setpoint changes based on Time-of-Day or

other conditions.

WITH V3.21 FIRMWARE: All GCL programming for mode changes, data exchange, and other

strategies must be written in the DCU.

WITH V3.22 FIRMWARE OR HIGHER: A DCU is no longer necessary and since data exchange is

supported across MS/TP-based products, no specific GCL is required for this. GCL programming

for mode changes or other strategies may be written in any appropriate controller on the network.

Refer to Appendix G in the V3.22 ORCAview Technical Reference Manual for further programming

information.

LINKNET CONNECTION

Device Limitations

Note that there are inherent limitations to the total number of devices per LINKnet network, as well

as the number of devices that have outputs. Refer to Appendix G in the V3.22 ORCAview Technical

Reference Manual for further information.

Objects

Only the BACstat information that is represented by objects resident in the Application Controller is

readily accessible over the network. The objects resident within each BACstat are not directly

accessible to other devices in the system. To gain access to BACstat objects, you create objects in

the Application Controller that correspond to the objects located in its respective BACstats.

Object Name Description Creation

LCDx01 LinkLCD# Object for BACstat LCD & Button Presses Automatic

AIx01 [User Specified] Object for the 10K Temperature Value Manually

Avx01, 02, etc. [User Specified] Matching object for the corresponding AV Manually

where “x” refers to the device address (1 to 12) multiplied by 100.

An LCD object is automatically created for each BACstat connected to the LINKnet network.

However, the associated AI objects representing the room temperature in each BACstat must be

created manually, and must follow a predefined numbering scheme. The object instance number is

the LINKnet device address (1 to 12) multiplied by 100, plus 1. For example, you would create

AI501 in the Application Controller to represent the 10K thermistor value on a BACstat with a

LINKnet device address of 5.

With V3.22 loaded in the Application Controller, AV objects may be created in a similar fashion to

the AI objects, which map to corresponding AV objects in the BACstat. You can then use these in

GCL programming as well. With V3.21, mapped AV objects are not supported.

Delta Network Sensor: BACstat I DNS-14 (Rev 1.6) Installation Guide

Page 10 of 12 Document Edition 1.9

GCL Programming

All GCL programming for BACstats on a LINKnet network is written in the Application Controller

that the BACstats are connected to, using the mapped objects resident in the Application Controller.

The LCD object is used for display and button handling. The mapped AI1 object is used for reading

the temperature value. And with at least V3.22 firmware on the Application Controller, the mapped

AV objects are used for setpoints and various other settings.

Note: Always use the LCD object for processing button presses over a LINKnet connection,

rather than AV4.

WITH V3.21 FIRMWARE: When connected to LINKnet local display and button handling should be

disabled (i.e., AV15 = 1.0), which is the default when you set the LINKnet Communications Setting

to ON. This way, the LCD and buttons are fully accessible from the Application Controller for

custom programming. Then, with GCL and the LCD and AI objects resident up in the Application

Controller, you program the BACstat to operate as you want (similar to how ISTATs were

programmed) – all BACstat functionality is written in GCL located in the Application Controller.

Note that none of the AV objects are accessible with V3.21 firmware.

WITH V3.22 FIRMWARE OR HIGHER: You may disable local display and button handling (i.e.,

AV15 = 1.0) and program everything in GCL in the Application Controller as previously described

for V3.21 firmware. Or, by setting the Display Code to something other than 1.0 (i.e., 4.0, which is

a typical setting), the display and buttons may be configured to function locally and GCL commands

from the Application Controller for display and button handling (via the LCD object) are ignored.

This may be the preferred method as no GCL needs to be written to handle setpoint adjust and the

display of values on the LCD. In addition to this, setpoints and other settings are also accessible

through their corresponding AV objects.

Refer to Appendix G in the V3.22 ORCAview Technical Reference Manual for further programming

information.

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