TAC Xenta 300 [56360]
TAC Xenta
TAC Xenta? 300
Controller, Freely Programmable
0-003-3250-0
TAC Xenta 300 belongs to a family of freely programmable controllers designed for small and medium-sized heating and air han-dling systems. A TAC Xenta 300 controller holds full HVAC functionality in c luding control loops, curves, time control, alarm han-dling, etc.
Two different I/O con? gurations are available in the TAC Xenta 300 series controllers, which includes the TAC Xenta 301 and TAC Xenta 302. If required, separate I/O modules may be added. Both the controllers and I/O modules are designed for cabinet mount-ing. The TAC Xenta 300 controller is simple to program using the graphical application programming software, TAC Menta.
The controller communicates on a LonTalk TP/FT-10 network via a twisted-pair, unpolarized cable. It is able to operate as a stand-alone unit, but can also easily be connected to a large LonWorks based network. TAC Xenta 300 can also be connected to a TAC Vista Building Management System. The controller can be removed/inserted from/to the terminal part without disconnecting the power supply. When adding or replacing a controller it’s also possible to pre-con? gure it in order to achieve Plug and Play functional-ity without any on-site con? gurations.
For local use, the TAC Xenta OP (Operator Panel) can be connected. The operator panel has a display and push buttons for navigating and altering settings. The operator panel can be snapped onto the TAC Xenta controller unit, mounted on the front of the cabinet, or used as a portable terminal.
SYSTEM CONFIGURATIONS
The TAC Xenta 300 controller can be
used in different con? gurations;
? as a stand-alone unit
? as a controller (with operator panel) in
a small network, with extra I/O mod-
ules as required
? as a controller (with operator panel)
and other equipment in a full net-
work with suitable adapters, possibly
connected to a TAC Vista Building
Management System
Fig. 1 shows an example of TAC Xenta
network con? guration.
Sensors and actuators on the ? eld level
are mostly connected to the conventional
inputs/outputs of the controllers or I/O-
modules.
Some external units, however, may con-
nect directly to the network to commu-
nicate input/output data, using Standard
Network Variable Types (SNVTs).
DESIGN
The TAC Xenta 300 controller has been designed as a general purpose unitary (one-to-one) controller. Thus, it can be mounted in close proximity to the con-trolled equipment, minimizing the wiring required.
The TAC Xenta 300 is microprocessor based. It consists of a terminal and elec-tronics mounted together (Fig. 2).
The Xenta 300 can be interfaced with a wide variety of ?eld sensors/transducers and controlled devices. All terminations of ?eld wires are made to the terminal part only. Thus, the electronic part may be removed for service without affecting the terminal connections.
Local Operator Panel
The TAC Xenta OP (Operator Panel) is a small operator panel which can be con-nected to the unit through its enclosure. The operator can read point status, perform manual override, read measured values, alter set points etc., from the operator panel.
The functions are selected from menus. Access to the unit is enabled by using an access code. It is possible to access other TAC Xenta units on the same network. Real Time Clock
The clock provides data such as year, month, date, day, hour, minute and second.
A built-in capacitor maintains operation of the clock for at least 72 hours in the event of a power outage.Daylight Saving Time:
European, Australian or USA/Canada
Once set, Daylight Saving Time (DST) is
fully automatic. The change-over date
and the number of hours to change are
programmable. This function can also be
disabled.
Digital Inputs
The digital inputs are used to sense alarm
contacts, status indications, pulse count-
ing, etc.
Each digital input can be used as a pulse
counter (e.g. for ?ow measurement).
Another application available when using
the digital inputs is for alarm monitoring.
Each time an alarm is tripped, the cor-
responding counter can be incremented,
providing data for operating statistics.
The digital inputs circuits are internally
powered.
Universal Inputs
The Universal Inputs can be individually
con?gured as analog or digital inputs.
A high and a low limit can be set for each
universal input. If con?gured as digital
inputs, the universal inputs may be used,
for example, for sensing switch positions.
The universal input types are selected via
the application program.
Digital Outputs
There are digital outputs controlling
equipment such as fans, pumps or similar
devices. The output signal can be pulse
width modulated and can be used to
control increase/decrease actuators.
Analog Outputs
There are analog outputs for controlling
actuators or other analog equipment.
LonWorks SNVT Support
The use of Standard Network Variable
Types (SNVT), in accordance with the
Echelon speci?cation, makes it possible to
communicate with nodes made by other
manufacturers.
Power Outage Protection
Using non-volatile (?ash) memory, the
unit will start up with user settings and
work normally after a power outage.
COMMUNICATION
Communication Capabilities
The TAC Xenta 300 has several communi-cation capabilities within a Network with a TAC Vista Building Management Sys-tem and/or a hand-held operator panel. LonWorks Connection
TAC Xenta controllers communicate with each other using a common network, LonWorks TP/FT-10, 78 kbps. A number of controllers can form a network and exchange data.
Additional I/O units also connect to the network and may be added as required. An I/O unit can only be associated with one controller.
The LonTalk protocol makes it possible to use network variables de?ned in equip-ment from third party manufacturers. The functional block applications are modeled as true LonMark controller objects.
The network variable interface (including the Standard Network Variable Types, SNVTs) can be customized, and external interface ?les (XIFs) can be generated with the TAC Menta programming tool.TAC Vista Building Management System
When connected to a TAC Vista Build-
ing Management System, the operating
conditions of the fans, pumps, heat ex-
changers, etc. can be monitored in color
graphics or printed reports.
Temperatures and alarms can be read,
while setpoints, time settings may be
altered as required.
TAC Xenta controllers can be reached
from TAC Vista in one of the following
ways:
1 Any controller in the network via a
PCLTA card.
2 A specific controller via the RS-232
connection.
3 Any controller in the network via the
TAC Xenta 901 LonTalk adapter.
Application programs generated in TAC
Menta may be downloaded from TAC
Vista via the network.
TAC Xenta Operator Panel Port
The TAC Xenta OP (Operator Panel) is
also connected to the network and can
thus act as an operator panel for other
units in the network. The connection is
made via the modular jack on the front
of the controller or directly, using the
network cable.
RS-232 Port
The TAC Xenta 300 controller has an
RS-232 port. This port is intended for
connection to a PC using the TAC Menta
programming tool for loading and com-
missioning the application program.
The port can also be used for connection
between TAC Vista and speci?c TAC
Xenta 300 units (see 2 under “TAC Vista
Building Management System” above).
20-003-3250-0
TECHNICAL DATA
Supply voltage. . . . . 24 V AC ±20%, 50/60 Hz or 19–40 V DC Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . max. 5 W Transformer sizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 VA Ambient Temperature
– Except TAC Xenta 301XT/N/P:
Storage . . . . . . . . . . . . . –20 °C to +50 °C (–4 °F to +122 °F) Operation . . . . . . . . . . .±0 °C to +50 °C (+32 °F to +122 °F)– TAC Xenta 301XT/N/P:
Storage . . . . . . . . . . . . . –20 °C to +70 °C (–4 °F to +158 °F) Operation . . . . . . . . . . . –20 °C to +70 °C (–4 °F to +158 °F) Humidity. . . . . . . . . . . . . . . . . . max. 90% RH non-condensing Mechanical
Enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ABS/PC Enclosure rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP 20 Flammability class, materials . . . . . . . . . . . . . . . . . . . UL 94 V-0 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see Fig. 3 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 kg (2.2 lb) CPU
CPU. . . . . 32 bit, 10 MHz, 512 kB ?ash memory, 128 kB SRAM Real Time Clock
Accuracy at +25 °C (77 °F) . . . . . . . . . . . .±12 minutes per year Power outage protection. . . . . . . . . . . . . . . . . . . . . . . . . . .72 h Digital Inputs (X1–X4)
Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Voltage across open contact . . . . . . . . . . . . . . . . . . . . 33 V DC Current through closed contact. . . . . . . . . . . . . . . . . . . . .4 mA Pulse input duration. . . . . . . . . . . . . . . . . . . . . . . . . min. 20 ms Universal Inputs (U1–U4)
Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4– Digital inputs:
Voltage across open contact. . . . . . . . . . . . . . . . . . . 26 V DC Current through closed contact . . . . . . . . . . . . . . . . . . .4 mA Pulse input duration. . . . . . . . . . . . . . . . . . . . . . . min. 20 ms – Thermistor inputs:
TAC thermistor sensor . . . . . . . . . . . .1.8 k? at 25 °C (77 °F) Measuring range . . . .–50 °C to +150 °C (–58 °F to +302 °F)– Voltage inputs:
Input signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0–10 V DC Input resistance . . . . 100 k? accuracy within 1% of full scale Sensor Inputs (B1–B4)
Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 TAC thermistor sensor. . . . . . . . . . . . .1.8 k? at 25 °C (+77 °F) Measuring range. . . . . .–50 °C to +150 °C (–58 °F to +302 °F) Digital Outputs (relays; K1–K6 or K1–K4)
Quantity, TAC Xenta 301. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Quantity, TAC Xenta 302. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Control voltage, relay outputs. . . . . . . . . . . . . .up to 230 V AC Control current, to be protected by max. 10 A fuse. . . max. 2 A Analog Outputs (Y1–Y2 or Y1–Y4)
Quantity, TAC Xenta 301. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Quantity, TAC Xenta 302. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Control voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0–10 V DC Control current, short-circuit proof . . . . . . . . . . . . . .max. 2 mA Deviation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . max ±1% Communication
TAC Menta; modem . . . . . . . . . . . . . .9600 bps, RS-232, RJ-45 TAC Vista . . . . . . . . . . . . . . . . . . . . . .TP/FT-10, screw terminal (also for application program download)
TAC Xenta OP. . . . . . . . . . . . . . . . . . . .TP/FT-10, modular jack LonMark Standard
Interoperability . . . . . . . . . . .LonMark Interop. Guidelines v 3.0 Application . . . . . . LonMark Functional Pro?le: Plant Controller Agency Compliances
Emission . .C-Tick; EN 61000-6-3; FCC Part 15, Subpart B, Class B Immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .EN 61000-6-1Safety
CE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .EN 61010-1 UL 916 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-UL US Listed Part Numbers
Electronics part TAC Xenta 301/N/P . . . . . . . . . . . .0-073-0009 Electronics part TAC Xenta 301XT/N/P . . . . . . . . . .0-073-0010 Electronics part TAC Xenta 302/N/P . . . . . . . . . . . .0-073-0011 Terminal part TAC Xenta 280/300. . . . . . . . . . . . . .0-073-0901 I/O units TAC Xenta . . . . . . . . . . . . . . . see separate data sheet Operator panel TAC Xenta OP . . . . . . . . . . . . . . . .0-073-0907 TAC Xenta: Programming Serial Kit . . . . . . . . . . . . .0-073-0920 TAC XENTA NETWORK AND UNIT PERFORMANCE
Per TAC Vista Server
No. of TAC Xenta controllers. . . . . . . . . . . . . . . . . . . . . . . . 400 No. of I/O modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 No. of operator panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 No. of TAC Xenta groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 No. of Xenta controllers per group. . . . . . . . . . . . . . . . . . . . . 30 Per TAC Xenta Base Unit
No. of I/O modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 No. of STR350/351 (non-SNVT mode) . . . . . . . . . . . . . . . . . . 2 No. of subscriptions*
In. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .max. 15 Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .max. 30 Trend Logging in the TAC Xenta 300 (from v 3.3, hw version 2) Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–50 Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 s – 530 weeks Total logging cap. . . . . . . approx. 4,000 ?oating point numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . or approx. 8,000 integers or approx. 60,000 digital values
Optimized storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes Application Size
Program and data . . . . . . . . . . . . . . . . . . . . . . . . . . max. 56 kB Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . max. 64 kB * Subscriptions can utilize Standard Network Variable Types (SNVTs) or TAC Network Variables (TACNVs). These can be combined if the following restrictions are observed: the sum of the TACNV subscriptions and the number of SNVT members (no. of values in structured SNVTs) does not exceed the stated ?gures.
MOUNTING
The TAC Xenta 300 is cabinet mounted on a TS 35 mm Norm rail EN 50 022.
The controller unit consists of two parts; a terminal part with screw terminals, and electronics with the circuit boards.
To simplify installation, the terminal can be pre-mounted in the cabinet (see Fig. 1).
If the TAC Xenta 300 controller is wall mounted, a wide range of standardized boxes are available.
MAINTENANCE
The only care needed is to keep the controller dry and to clean it externally with a dry cloth when needed.
3
0-003-3250-0
40-003-3250-0
CABLES G and G0
Min. area 0.75–1.5 mm2 (19–16 AWG).
Cable with modular jack for RS-232 serial communication port: Max. 10 m (32 ft).
Terminals X1–X4
Min. area 0.25 mm2 (23 AWG).
Max. cable length 200 m (650 ft).Terminals U1–U4, B1–B4, Y1–Y4
Min. area 0.25–0.75 mm2 (23–19 AWG).
Max. cable length 20–200 m (65–650 ft). For more details, see the TAC Xenta
280/300/401 Handbook (part no. 0-004-7768).
Terminals K1–K6Min. area 0.75–1.5 mm2 (19–16 AWG).Max. cable length 200 m (650 ft).
C1 and C2
TP/FT-10 allows the user to wire the
control devices with virtually no topology
restrictions. The max. wire distance in one segment depends on the type of wire and the topology, see the table below.The TAC Xenta Network guide (part no. 0-004-7460) gives a more detailed
description.
SOFTWARE FEATURES
With the assistance of TAC Menta, a graphical programming tool using Functional Block Diagrams (FBDs), the TAC Xenta 300 may be easily adapted to different control and monitoring tasks.The basic software includes pre-pro-grammed routines for:
? reading of digital inputs (alarms, pulse counting, interlocks)
? reading of universal inputs (individually selectable as analog or digital)? control of digital outputs ? control of analog outputs ? on and off delays
? pulse counting (digital inputs only)
? alarm handling; alarm conditions may be detected via the digital or analog inputs
? equipment run time totals on selected objects
? programs for optimum start/stop ? control characteristic curves ? outdoor temperature compensating control curves
? PID control loops (loops may be con-nected in cascade)? trend logging (max. 5 kB)? local level operator interface via TAC Xenta OP (Operator Panel)? network communication according to the LonTalk protocol
? communication with the TAC Vista Building Management System via mo-dem
? connection to one or two optional I/O modules
The basic software is adapted to the current application by connecting pre-programmed functional blocks and by adjusting the relevant parameters. These connections and parameters are stored in a non-volatile memory.
The parameters may be changed dur-ing ongoing operation either from the TAC Vista Building Management System or locally from the TAC Xenta OP (Operator Panel).
I/O MODULES
TAC Xenta 300 can use up to two I/O modules from the TAC Xenta 400 series devices.
The table gives an overview of the differ-ent numbers of inputs and outputs.DI, DO: Digital input, output UI: Universal input TI: Thermistor input AO:
Analog output
The Xenta 4x2 modules have manual overrides for the DO or AO, and/or DI
status indication, where applicable.
1 Status indication only when the corresponding universal inputs (UI) are used as digital inputs (DI).
2 1.8/10 k ? TI, 0–10 V DC, 0–20 mA, DI
3 1.8 k ? TI, 0–10 V DC, DI
4 0–10 V DC, 0–20 mA
Copyright ? 2006, TAC
All brand names, trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change
without notice. All rights reserved.
0-003-3250-0Europe / Headquarters Malm?, Sweden
+46 40 38 68 50 Americas
Dallas, TX
+1 972-323-1111 Asia-Paci?c Sydney, Australia
+61 2 9700 1555
https://www.sodocs.net/doc/a74544874.html,
INSTALLATION
The two TAC Xenta 300 controllers have
different inputs and outputs. The adjacent
table shows the terminal connections of
the two TAC Xenta controllers.
There is a label on the front of the con-
troller with the numbers and the names
of the terminals (1 C1, 2 C2 and so on).
The numbers are also moulded in the
plastic of the terminal part.
Note! The installation of high voltage
cables must be performed by quali?ed
personnel!
For detailed information, please refer to
the TAC Xenta 280/300/401 Handbook
(part no. 0-004-7768).
TAC Xenta Operator Panel
The TAC Xenta operator panel can easily
be connected to the network by means
of the modular socket on the front of the
controller.
LED Indicator
An LED indicator on the electronic unit
of the TAC Xenta 300 indicates when the
application program is running.
Service Pin
To simplify network commissioning, there
is a service pin on the electronic unit
which, when pressed, identi?es the unit
on the network.
Terminal Connections (Inputs)
Terminal Connections (Outputs)