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DX-9200 LonWorks-Compatible Digital Controller

Secondary Control Units
DX-9200 LonWorks-Compatible Digital Controller
Date Last Saved: 5/25/2004 1:00:58 PM

Product Name(s): DX-9200 LonWorks-Compatible Digital Controller
Product Description: The DX-9200 controller is LON-based general-purpose, programmable secondary control unit. The DX-9200- are supervised by an NCM (SI) during normal operation and can also operate standalone. (An earlier-generation JCI Lon-based controller, the DX-9120 - operated on a LON-based TP78 transceiver secondary network.) The DX-9200 uses extension and expansion module-based I/O and can support up to 94 total I/O.
Product Application(s): The DX-9200 is recommended for all general purpose HVAC applications including air-handling units, chillers/boiler/central plant control and distribution systems, lighting, data acquisition, and other related industry applications. Specific models are available for 'room control/lighting' and 'discharge air control' applications (the latter using the LonWorks Discharge Air Controller profile).
Point Quantity Characteristics
Analog Input (AI): 8 0-10 Vdc max


0/4-20 mA
Digital Input (DI): 8 Dry Contact, maximum 10 Hz (>50 ms closed, >50 ms open)
Universal Input (AI or DI):
Analog Output (AO): See below 0-10 Vdc

0-20 mA
Digital Output (DO): 6 Triac switch (24Vac, 0.5A resistive max)

Optional Line Voltage Relay Kit provides 120V SPDT relays if required
Universal Output (UO):
A/D Converter Resolution
8 bit
10 bit
12 bit
16 bit
D/A Converter Resolution
6 bit
8 bit
10 bit
No Analog Output
HOA switches provided on each output?
Note: These are also available as an add-on from 3rd party vendors.
Both AO and DO
DO Only
Indicating status LED on each output?
AO and DO
AO Only
DO Only
Integral Flow Sensor?
Integral Damper Actuator?
Can controller accept occupant override from thermostat?
Can controller accept occupancy sensor input?
Expander Boards The DX-9200 uses an array of expansion (XP) and extension modules (XT) in addition to the on-board I/O. Many similar modules below vary only in the type of relay or output. See vendor for specific details. Note that calibration is different between the Main Module and the XP Modules: The XP Module AIs cannot be calibrated, and RTD input values cannot be changed at all. To allow for full calibration of expansion points, use devices with 'span' pot on expansion module
Expansion Device Model #AIDIUIDOAOUOOther
XT-9100 6 4/8/16 4/8/16 2
XTM-905 6 4/8/16 4/8/16 2
XPA-821-5 6 2
XPB-821-5 8
XPL-401-5 4 3
XPE-401-5 4 3
XPE-404-5 4 4
XPT-401-5 4 4
XPT-861-5 8
XP-9102 6 2
XP-9103 8
XP-9104 4 4
XP-9105 8
XP-9107 4*
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
(1) - FTT10 LON port @ 78 kbps (peer-to-peer)
External Communication Ports, Speeds and Access Devices (1) - Dedicated EIA-232 serial port @ 9.6 kbps; To: Laptop/PC

(1) - Socket for service module connection (SX-9120) at 600 baud.
Additional Information (Optional)
Network Accessing Capabilities via Controller
Access controller only
Access controller plus additional controllers on network segment / LAN
Access all controllers on system
No access available on this controller
Controller Access Devices
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Zone-Based Interface Access Available:

MetaStat (series of thermostat with optional RJ-45 zone interface for laptop).

DT-9100Display (Zone-mounted, handheld, or controller-mounted display panel with LED display of viewing trend data/plots as well as other more typical functions. Can display up to 96 points of data.
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display)
HID (proprietary device)
PDA (3rd party HID, with software)
*Note: This section covers the capabilities for accessing the controller or other parts of the network from the controller (i.e. 'bottom-up').
Standard access functionality is covered in the Architecture and Software sections.
**Does NOT include front-end OI functions. See vendor for specific functions available.
Functions Available Through Field Interface**:View ParamsChange ParamsChange
O&M SupportTAB/Cx Support
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Microprocessor(s) NEC 78C10
LonWorks Interface uses Neuron 3150 (3 CPUs)
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization The network variable Time Synchronization Input (nviTimeStamp) enables a supervisory system or LONWORKS compatible clock device to set the clock in the DX-9200 controller. The NCM automatically writes to this network variable once per day to synchronize the DX clock with Metasys system time.
Volatile Memory (RAM) Capacity 8 kB RAM; 26 kB RAM for LonWorks Interface
Volatile Memory (RAM) Uses
RAM use unrestricted
RAM use restricted as shown below
Information Not Provided
Program Execution / Calculation storage
Data / Trends / Alarms storage
Configuration / Parameter storage
Control Programming storage
Is Volatile Memory Supported By Battery? Yes
Battery Type(s) Rechargeable capacitive battery and non-rechargeable lithium battery
Battery Life Lithium battery has a 10 year shelf life.
Backup Battery Operating Time Capacitive battery will provide 7 days backup power. Lithium battery provides RAM backup power for at least 1 year
Non-Volatile Memory Capacity (EEPROM/Flash)* 8 kB EEPROM in all models, 0.512 kB EEPROM for LonWorks Interface.
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Additional Information
* Items in NV memory are not lost upon power or battery failure. Other types of NV memory such as EPROM, NOVROM, etc. do not directly impact system performance.
Can trend data be stored in this controller? No
How many total trend values can be stored? N/A
What is the controllers role in trending? None. Trend points data is called by the SI (NCM) and stored temporarily before being archived at the OWS.
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller?
When full, does controller automatically send up trend data, overwrite data, or stop logging data? N/A
Programming Method(s) The GX-9100 Graphic Software Configuration Tool (v. 6.00+) is a graphical programming tool that is used to program logic that is resident in the DX-9200 and DX-9100 controllers. GX-9100 software is run on a laptop that must be direct-connected to the DX-9200, or it may be used on the operator workstation.
Resident vs Non-Resident Program Execution The DX-9200 may receive external instructions and overrides via the N2 network from either JC-Basic line-based programming or GPL graphical programming resident in NCMs and programmable from the operator workstation.
Resident/Supervisory. This controller supervises the scheduling of other controllers.
Resident/Stand Alone. This controller contains its own schedule.
Non-Resident. This controller is dependent upon another controller for its schedule.
None. This controller has no scheduling features.
Resident Energy Management
Energy management algorithms for this controller can be custom programmed
Pre-programmed/built-in algorithms available, and are fully editable using custom programming
Pre-Programmed/built-in with limited editing via template-based programming
Controller is not typically used for energy management functions
Specific Pre-Programmed Algorithms Available
None (custom programming only)
None (not applicable)
Optimal Start/Optimal Stop
Peak Demand Limiting/Load Shedding
Economizer (enthalpy, dry-bulb, CO2, modulating/2-position, etc.)
Additional Energy Management functions are resident at SI
Additional Programming Functions
DDC Loops (P, PI, PID) PID
Automatic PID Tuning Feature No
Automatical-Dial Alarm Support No dial out from controller. Dial-out can be achieved using NCM (SI).
Does controller perform multiple retries and buffer/store alarm until connection is made? No
Are multiple destinations possible? No
Upon controller power loss or hardware failure:
Are network communications affected? No
Is loss recognized on/by the network and alarm reported? Yes. An alarm is generated by the NCM when the controller loses power.
DO and AO response?
Outputs fail to a user pre-specified position
Outputs fail to a normal (unpowered) position
Outputs fail to last position
Volatile memory functions?
Retained for life of backup battery
Upon restoration of power does the controller:
Auto-reboot without operator intervention? Yes
Automatically reset/synchronize the clock? Yes. However, if correct time is not available on the network or if DX is standalone, the DX resets to the last valid time.
Update all monitored functions? Yes
Generate an alarm if backup battery is dead? Yes. An alarm is generated to the workstation by the NCM.
Upon network or communications failure does controller:
Continue to operate standalone? Yes
Operate with last global settings or user-specified value? N.A.
Do broken network segments continue to communicate within the remaining segment?
(Note: May depend on proper termination of segments for higher speed networks.)
Does network automatically reconfigure upon restoration? Yes
Does network store 'loss of communications' alarm with time of event? Yes
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? General 'Failure' alarm only
Internal hardware failure? General 'Failure' alarm only
Open/shortened sensor? No. However, open sensor fails to Max value, and shorted sensor fails to Min value.
Control Enclosure A variety of control enclosures are available from the manufacturer.
Power Supply Required
Voltage 24 Vac
VA 100 VA recommded as minimum
Surge Protection Provided
Underwriters Laboratories UL Listed and CSA Listings Pending
FCC Part 15, Sub-Part B, Class A
CE CE Directive 89/336/EEC
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided