Vector Controls B2235779 User Manual

TCX2-40863-MOD

OVERVIEW

Features

 Slave Modbus communication over RS485 RTU or ASCII
 RS485 bus communication with remote operation terminal

OPA2-VC.

 Universal PI and/or binary control for any analog input/output

signal and range.

 Multiple auxiliary functions: heat-cool auto changeover,

automatic enable, set point compensation.

 Free heating or cooling with economizer function based on

enthalpy or temperature.

 Differential, averaging, min and max functions
 Cascading of control loops.
 8 free assignable alarm or interlock conditions,

Selectable state of each output on alarm condition.

 Transmitter function for inputs and set points.
 Functions for dehumidifying, set point shift and many more.
 Password protected and lockable settings.
 Power Cap protected real-time clock with 48hr power backup.
 Annual and 7-day programmable schedules for change of

operation mode, setpoints and position of manual outputs.

 Clone parameter sets with plug-in memory AEC-PM1 – easily

transport application parameters to multiple controllers.

 Program and monitor using free pc software: EasySet!

 Heat exchangers
 Fan coil units
 Boilers

 VAV with reheat/recool
 Air handlers
 Fan, Pump control

 Humidifiers
 Dehumidifiers
 Ventilation

 Radiant heating/cooling
 Pressurization
 Package units

Model

Item#

Display

Loop

Inputs

DO

AO

Description

TCX2-40863-MOD

40-11 0077

no 4 8 UI

6 Relays

3

Controller 24 V AC/DC, Modbus slave RS485

TCX2-40863-OP-MOD

40-11 0078

Yes 4 8 UI

6 Relays

3

Controller with display, Modbus slave RS485

OPA2-VC

40-50 0007

Yes - 1T - -

Operation terminal

OPA2-2TH-VC

40-50 0023

Yes

-

1T+1H+2

Terminal with TH + 2 passive inputs

OPU2-2T-VC

40-50 0024

Yes - 1T+2

Terminal with T + 2 passive inputs

OPU2-2TH-VC

40-50 0025

Yes

-

1T+1H+2

Terminal with TH + 2 passive inputs

OPT-2-VC

40-50 0098

YES

1NTC 1VDC

Terminal with touch screen, 1 NTC and 1 VDC input

AEC-PM1

40-50 0016

- - - - -

Plug-In memory module

AEX-MOD

40-50 0013

- - - - -

Modbus communication module

AEX-BAC

40-50 0044

- - - - -

BACnet MS/TP communication module

AMM-1

40-51 0022

- - - - -

Accessory for cabinet door mounting

AEC-USB-01

40-50 0046

-

- - -

-

Accessory to exchange parameter set with PC

OPA2-VC

AEC-PM1

Com: Communication standard
Option: OP = with operation terminal
# AO: 3 Analog outputs
# DO: 6 Binary outputs
# UI: 8 Universal inputs
# DI: 0 Binary inputs
# LP: 4 control loops

T C X

4 - 2 0 8 6 3

-

M

(

)

-

D

O

TCX2-40863-OP

TCX2-Series Communicating Cabinet Mounted Universal Controller

Applications

General

 The TCX2 is a programmable electronic universal controller with communication capabilities. Each control loop may

use 2 PI sequences and 6 binary stages. The TCX2 comes with a built in RS485 communication interface that allows
peer to peer communication with an operation terminal e.g. OPA2-(2TH)-VC or a PC.

 The TCX2 communicating MODBUS controllers are designed as universal controls equipment suitable for a large

number of applications. They may be used in zoning and other applications which are monitored by a MODBUS RS485
network.

 Flexible application configuration is made with a parameter-setting routine using the standard operation terminal.
 Complete parameter sets may be copied by use of an accessory called AEC-PM1 or exchanged with a PC using an

RS485-USB converter and the EasySet program.

Name

Ordering

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TCX2-40863-MOD

TECHNICAL DATA

Power supply

Power requirements

24 VAC ±10%, 50/60 Hz, 24VDC ±10%
SELV to HD 384, Class II, 48VA max

Power consumption

Max. 10 VA

Electrical connection

Removable terminal connectors,

wire 0.34…2.5 mm2 (AWG 24…12)

Clock backup

Min. 48 hours

Signal inputs

Universal input
Input signal
Resolution
Impedance

Input jumper set for voltage or current

0...10 V or 0...20 mA

9.76 mV or 0.019 mA (10 bit)
Voltage: 98kΩ Current: 250Ω

Passive input
Type & range:

Input jumper set to temperature (RT) or digital input (DI)
NTC (Sxx-Tn10): -40…140 °C (-40…284 °F)

Signal outputs

Analog outputs: Output signal
Resolution
Maximum load

DC 0...10 V or 0...20 mA

9.76 mV or 0.019 mA (10 bit)
Voltage: ≥1kΩ Current: ≤250Ω

Relays outputs : AC Voltage
DC Voltage

0…250 VAC, full-load current 3A, locked-rotor 18A.
0…30 VDC, full-load current 3A, locked-rotor 18A.

Insulation strength
between relays contacts and system electronics:
between neighboring contacts:

4000V AC to EN 60 730-1
1250V AC to EN 60 730-1

Connection to
remote terminal

Hardware interface
Cabling

RS485 in accordance with EIA/TIA 485
Twisted pair cable category 5 or 6

Network

Hardware interface
Max nodes per network
Max nodes per segment

RS485 in accordance with EIA/TIA 485
128
64 (Vector devices only)

Conductors
Impedance
Nominal capacitance

Shielded Twisted Pair (STP) cable
100 - 130 ohm
100 pF/m 16 pF/ft. or lower

Galvanic isolation

The communication circuitry is isolated

Line termination

Network topology

A line termination resistance (120 ohm) shall be connected
between the terminals (+) and (-) of the furthermost node of
the network
Daisy chain according EIA/TIA 485 specifications

Recommended maximum length per chain

1200 m (4000 ft.)

Modbus

Communication standard

Modbus (www.modbus.org)

Default setting

19200 baud rate, RTU 8 data bits,
1 even parity bit, 1 stop bit

Communication speed

4800, 9600, 19200, 38400

Protocol: Data bits
Parity – stop bit

RTU - 8 data bits, ASCII – 7 data bits,
no parity – 2 stop, even or odd parity – 1 stop

Environment

Operation
Climatic conditions
Temperature
Humidity

To IEC 721-3-3
class 3K5
0…50 °C (32…122 °F)
<85 % RH non-condensing

Transport & storage
Climatic conditions
Temperature
Humidity
Mechanical conditions

To IEC 721-3-2 and IEC 721-3-1
class 3K3 and class 1K3

-25…70 °C (-13…158 °F)
<95 % RH non-condensing
class 2M2

Standards

conformity
EMC directive
Low voltage directive

2004/108/EC
2006/95/EC

Product standards
Automatic electrical controls for household and similar use
Special requirement on temperature dependent controls

EN 60 730 –1
EN 60 730 – 2 – 9

Electromagnetic compatibility for
industrial and domestic sector

Emissions: EN 60 730-1
Immunity: EN 60 730-1

Degree of protection

IP00 to EN 60 529

Pollution class

II (EN 60 730-1)

Safety class: Local regulations must be observed!

III (IEC 60536) if SELV is connected to DO
II (IEC 60536) if line voltage is connected to DO.

Overvoltage category

III (EN 60 730-1)

Product standards:
Temperature- indicating and -regulating
equipment
Mark: c(ETL)us

UL 873
CSA C22.2 No. 24
Certified by Intertek: 4005917

General

Material

Fire proof ABS plastic (UL94 class V-0)

Dimensions (H x W x D)

57 x 147 x 115 mm (2.3 x 5.8 x 4.5 in)

Weight (including package)

TCX2-40863: 440g (15.2 oz)
TCX2-40863-OP: 500g (17.6 oz)

Technical specifications

Important notice and safety advice

This device is for use as operating controls. It is not a safety device! Where a device failure endangers human life and/or
property, it is the responsibility of the client, installer and system designer to add additional safety devices to prevent a
system failure caused by such a device failure. Ignoring specifications and local regulations may cause equipment damage
and endangers life and property. Tampering with the device and misapplication will void warranty.

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TCX2-40863-MOD

TECHNICAL DATA

AO: Selection of analog output type

Left position: voltage output (0…10 V)

factory default

Right position: current output (0…20 mA)

AO1

UI: Selection of universal input type

Left position: voltage input (0…10 V)

factory default

Middle position: current input (0…20 mA)

Right position: RT or dry-contact

UI1

0…10V

0…20mA

0…10V

0…20mA

RT / DI

█ █

147 (5.8)

57 (2.3)

115 (4.5)

M

X1

X2

X3 M X4

X5

X6 M X7

X8

M

OP1

OP2

OP3

OP4

TX1

TX2

TX3

TX4

Status

G0 G

N L

M Y1 Y2 Y3

M

Y

AO 0...10VDC
Select by JP

Actua-

tor

Q13 Q14

Analog Output (3x)

Power

24VAC

10VA

Q23 Q24

Q33 Q34

Q43 Q44

Digital Output (6x)

Relays 3A

N L N

Outputs are

Status LED

M X1 X2 X3

NTC10kΩ, DI ( ), 0...10VDC, 4...20mA select by JP

M X4 X5 X6

Universal Input (8x)

OP1

OP2

OP3

OP4

RS485

Operation Terminal

RS485

MODBUS

M X M

X

NTC

10kΩ

M

X

Pot.

M

X

0...10VDC

4...20mA

Temperature
Pressure
Humidity
CO2
etc.

Door contact
Dew point
Occupancy
Alarm
Enable

1 2 3 4

OPA2-(2TH)-VC

+V



CAT5
CAT6

Q53 Q54

N

Q63 Q64

N

M X7 X8

COM D0 D1 TX4

CAT5
CAT6

120Ω

(LT)

Line
termination:
On either end
of bus only!

Dimensions, mm (inch)

Connection diagram

4...20mA

Jumpers

Jumpers are located on the backside of the controller

assignable

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TCX2-40863-MOD

TECHNICAL DATA

RS485 2-wire bus shielded twisted pair cable

On last node on either end of bus only

RS485

RS485

RS485

OP1

OP2

OP3

OP4

TX1

TX2

TX3

TX4

Modbus Common

Modbus D0 (A or -)

Modbus D1 (B or +)

Note:

150Ω

Balanced pair

TCX2 terminals

Installation

See installation sheet no. 70-000599 (www.vectorcontrols.com).

Selection of actuators and sensors

Temperature sensors: Use Vector Controls NTC sensors to achieve maximum accuracy: SDB-Tn10-20 (duct), SRA-Tn10

(room), SDB-Tn10-20 + AMI-S10 as immersion sensor.

Actuators: Choose modulating actuators with an input signal type of 0-10 V DC or 4-20 mA (Min. and max. signal
limitations may be set with parameters. 3-point point actuators with constant running time are recommended.

Binary auxiliary devices (e.g. pumps, fans, on/off valves, humidifiers, etc.): Do not directly connect devices that
exceed specified limits in technical specifications – observe startup current on inductive loads.

Electrical connections

Use only twisted pair copper conductors for input connections. The operating voltage must comply with the requirements
for safety extra-low voltage (SELV) as per EN 60 730.

Use safety insulating transformers with double insulation. They must be designed for 100% ON-time. When using several
transformers in one system the connection terminal 1 must be galvanically connected. The TCX2 is designed for operation
by AC 24 V, max. 10 Amp, safety extra-low voltage that is short-circuit-proof. Supplying voltages above AC 24 V may
damage or destroy the controller or any other connected devices.

Additionally, connections to voltages exceeding 42 V endanger personnel safety. Observe limits mentioned in the technical
specifications. Local regulations must be observed at all times.

Bus connection

Wire type

An EIA-485 network shall use shielded, twisted-pair cable for data signaling with characteristic impedance between 100
and 130 ohms. Distributed capacitance between conductors shall be less than 100 pF per meter (30 pF per foot).
Distributed capacitance between conductors and shield shall be less than 200 pF per meter (60 pF per foot). Foil or
braided shields are acceptable.

Line termination

On last node on either end of bus only connect 120Ω termination resistor between (+) and (-).

Maximum length

The maximum recommended length per segment is 1200 meters (4000 feet) with AWG 18 (0.82 mm2 conductor area)
cable.

Shield connection

See Ashrae Standard 135 for detailed recommendation regarding how to connect the shield depending on type of nodes
present in network.
Vector Controls bus modules are isolated devices.

Communication wiring

slave
node

Power GND ≠ Modbus Common!

LED indicators

A status LED is located on the upper left side of the controller housing. During normal operation the LED blinks briefly
once every 5 seconds. If there is an alarm or fault condition it will blink every second.

The Modbus slave features a green LED and a red LED for indication of traffic on the RS-485 bus. The green LED is lit
when an incoming packet is received, and the red LED is lit when an outgoing packet is transmitted to the bus. At power­up, both LED blink twice simultaneously as a sign of the boot process being completed. A constantly lit LED serves as an
indication of a fault condition in the reception or sending process.

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slave
node

slave
node

connect 150Ω termination resistor between A and B (TX2 and TX3)

TCX2-40863-MOD

OPERATION

Operation modes

Control symbols

Occupied: (Comfort) All control functions operating per set points.

Heating (reverse) active

Unoccupied: (Standby, Economy) If enabled, alternative setpoints
are used with the intention to reduce energy consumption.

Cooling (direct) active

OFF

OFF: (Energy Hold Off, EHO) Normal control functions are inactive,
inputs are monitored for alarms.

Schedule set

Manual override,

delay on enable function



Fan active

Left (ESC)

parameter setting)

Center (POWER)

UP

and parameters)

DOWN

Loop indication

Mode

Display of operation

mode

Large Digits

Display of input or

parameter value.

Indicators

Idle display: Active

digital output (at 1

to 6)

Parameter setting:

8,9,10 indicate

changing mode.

Vertical Bar

resolution)

Small Digits

Right (OPTION)

Display and Operation

Idle display (no button pressed for 30
sec.): Not visible.

Loop display: Bar at 1 = Loop 1, Bar at
2 = Loop 2, etc

Display of

setpoint, clock

or parameter

number.

Display of

output value.

(Scrolls

up/down, 10%

Increase SET POINT

(Parameter setting:
SCROLL menu options

Select Control Loop

(Parameter setting: ESCAPE

menu option, discard

Press < 2 sec.: Toggle Occupied­Unoccupied mode or switch from
OFF to ON
Press > 2 sec.: Turn unit OFF.

(Parameter setting: ENTER to
select menu option, accept
parameter change)

Press < 2 sec.: Select Control Loop

Press > 2 sec.: Enter set-up
CLOCK, SCHEDULES, H/C

(Parameter setting: ENTER to
select menu option, accept
parameter change)

Decrease SET POINT

(Parameter setting: SCROLL menu
options and parameters)

Idle display

The idle display is activated when no key has been pressed for 30 seconds.
The contents of the idle display are selectable through parameters UP08 to UP14.
Setting UP08 to OFF will disable idle display. Last active control loop or manual output will remain displayed.

Display of control loop

Active when changing set points. Large digits show input value. Small digits show set point. Horizontal bars top left show
which loop is being displayed.

Override of secondary set point in cascade control

If cascade control is active (with VAV for example) the user can override the primary loop and manually select the set
point of the secondary loop (the loop is then changed to constant air volume mode). This function is helpful for tuning the
VAV system. This feature may be disabled by setting UP02 to OFF.
While the secondary loop is displayed change the set point with UP/DOWN. The hand symbol appears.
Change setpoint again to cancel cascade override. The hand symbol disappears.

Delay on enable function

During a pending delay the hand symbol will be shown. For example the condition to activate the controller with 1FU is
met, but a startup delay is specified. The controller will remain switched off and show the hand symbol until the delay
expired.

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TCX2-40863-MOD

OPERATION

Press OPTION > 2 sec. SEL and current time displayed
Press OPTION < 2 sec. to change time,

Minutes blink: UP/DOWN to change, OPTION to save,
Hours blink: UP/DOWN to change, OPTION to save,
DAY1 blinks: UP/DOWN to change, OPTION to save weekday
Day of month blinks, UP/DOWN to change, OPTION to save
Month blinks, UP/DOWN to change, OPTION to save
Year blinks, UP/DOWN to change, OPTION to save

Press ESC or POWER to return

SEL

00:00

DAY1 (Mon)

01.01.

2014

Press OPTION > 2 sec. current time and SEL displayed
Press UP:

PRO and SEL displayed

Press OPTION:

Time schedule status displayed OFF or ON ( )

Press OPTION to toggle OFF/ON

SEL

PRO

Pro

OFF/ON

Status LED

A status LED is located on the upper left side of the controller housing. During normal operation the LED blinks briefly
once every 5 seconds. It will blink every second in case there is an alarm or fault condition.

Power Failure

 All parameters and set points are memorized and do not need to be re-entered.
 Upon return of power: Based on UP05 the controller will start in OFF, occupied or the same mode as before.
 Clock and time schedule settings are retained for 48 hours (after being powered for at least 10 hours).

Error messages

Err1: Communication error
Err2: Initial power up after firmware update or internal error. Re-start product. If error reappears, replace product.
Err3: Real time clock failure.
Err4: Configuration error. Parameter settings are conflicting or an input assigned to a function or control loop is

Err5: General operation: Not supported parameter, write protection is active or eeprom failure.

Err6: Parameter copy mode: Check sum mismatch of eeprom data. Data in external eeprom corrupt.

disabled. Verify setup; make sure all assigned inputs are enabled and functioning.

Parameter copy mode: Copy error – if external module is addressed, communication error with external product.

Clock operation

The controller contains a quartz clock with battery back-up. Up to 12 schedules based on time and day of the week or
annual holidays may be programmed (Pr01 through Pr12). Schedules may change controller operation mode (on, off,
occupied, unoccupied), change fan state, directly position an output, or change a loop set point. A blinking clock indicates
that the time has not been set or the unit was without power for longer than 48 hours. The time needs to be set to allow
time schedules to operate. Summer / winter time changeover may be activated using user parameters.

Clock setup

Enable/disable time schedules

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TCX2-40863-MOD

OPERATION

The selection of switching time and weekdays for this time schedule is now completed.
Press POWER to come to desired action for Pro1. The following options appear in this order:

no = switching time not active
OP = operation mode (ON, OFF, OCCUPIED, UNOCCUPIED)
LP = set point
AO = Position of analog output (output must be in manual mode by parameter setting)
FAN = Fan state (output must be in manual mode by parameter setting)
do = Position binary output – digital, 3-point or PWM (output must be in manual mode by parameter
setting).

Hday = Annual time schedule: Holiday
Press UP/DOWN to scroll through the possible events(3nd bar indicates step 3 complete)
Press Option to complete selection of event

LP

Pr01

Press UP while PRO-ON displayed:

Press UP or DOWN to SCROLL Pr01 through Pr12,
Press OPTION to select desired schedule (e.g. Pr01),

00:00 blinks
Press UP/DOWN to select Pr01 switching time from 00:00–23:45
Press OPTION to save switching time (bar appears indicating step 1 complete): DAY 1 blinks

08:00

Pr01

While Pr01 is displayed and DAY1 is blinking: If 365 is shown, press DOWN key. After this DAY 1 will show.
Press UP:

Activate Pr01 switching time for DAY1 (triangle appears on 1),
Press DOWN:

Deactivate Pr01 switching time for DAY1 (triangle disappears)
Press OPTION to save Pr01 DAY1 (2nd bar indicates step 2 complete):

Repeat for DAY2 – DAY7

DAY1

Pr01


1 2 3 4 5 6 7

For all non-operation mode changes, it is required to select the output or control loop in this step.
For example for setpoint LP1, LP2, etc. or for an output the number of the output that should be changed.
Press UP/DOWN to select, OPTION to complete

LP01

Pr01

Choose operation mode, setpoint or position of output

Characteristics of action (e.g. 0–100% for A1) appear (5th bar indicates step 5 complete)
Press UP/DOWN to select, OPTION to complete

25%

Pr01

Creating weekly time schedules

Step 1: For weekly schedules: Select action for switching time (Pr01+Days)

Step 2: Select a switching time (Up to 12, Pr01–Pr12)

Step 3: Apply selected switching time (Pr01) to DAY1 (Mon) – DAY 7 (Sun) or 365 days (Annual schedule)

Step 4: Select ID (For example: LP01 or FAN2)

Step 5: Complete switching event

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TCX2-40863-MOD

OPERATION

Press UP while PRO-ON displayed:
Press UP or DOWN to SCROLL Pr01 through Pr12,
Press OPTION to select desired schedule (e.g. Pr01),
The following options appear in this order when pressing UP:

no = switching time not active

OP = operation mode (ON, OFF, OCCUPIED, UNOCCUPIED)

LP = set point

AO = Position of analog output (output must be in manual mode by parameter setting)

FAN = Fan state (output must be in manual mode by parameter setting)

do = Position binary output – digital, 3-point or PWM (output must be in manual mode by parameter

setting).

Hday = Annual time schedule: Holiday
Press UP/DOWN to scroll through the possible events(1st bar indicates step 1 complete)
Press Option to complete selection of event

Hday

Pr01

Select month 1 for January and 12 for December. Month is blinking.

Press UP/DOWN to select, OPTION to complete

14.07

Pr01

Select the day of month (1 – 31). Day is blinking.
This is the first day of the holiday. Controller enters off mode at 00:00.

Press UP/DOWN to select, OPTION to complete

14.07

Pr01

Select month 1 for January and 12 for December. Month is blinking.

Press UP/DOWN to select, OPTION to complete

28.07

Pr01

Select day of month (1-31). Day is blinking.
This is the last day of the holiday. Controller enters weekly scheduled mode after 23:59.

Press UP/DOWN to select, OPTION to complete

28.07

Pr01

Creating annual time schedules (only for V1.3 and later)

Holiday schedules have priority over operation mode schedules. While a holiday schedule is active, the controller will be in
the OFF-mode. Other weekly schedules will still be active. It will still be possible to manually override the controller while
in holiday mode.

Step 1: For annual schedules: Select holiday (Pr01 – Pr12)

Step 1: Select start month of holiday (For example: 1-12)

Step 2: Select start day of holiday (1-31)

Step 4: Select last month of holiday (For example: 1-12)

Step 5: Select last day of holiday and complete switching event

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TCX2-40863-MOD

OPERATION

Press OPTION > 2 sec. SEL and current time displayed
Press UP/DOWN

Until small digits display H-C:
Press OPTION

Currently active Heat or Cool optional with fan symbol or Auto are displayed:
Press OPTION again to toggle Heating only, cooling only, fan only in heating mode or cooling mode or auto in

the following order:
Auto: heating and cooling change automatically based on demand. This must be setup with FU3.
Heat: Heating only. The controller stays in heating mode and will not switch to cooling.
Heat & Fan: The controller is in fan only mode. The fan will activate based on heating sequence.
Mechanical heating is disabled.
Cool: Cooling only. The controller stays in cooling mode and will not switch to heating.
Cool & Fan: The controller is in fan only mode. The fan will activate b ased on cooling sequence.
Mechanical cooling is disabled.

H-C

SEL



Press OPTION > 2 sec. SEL and current time displayed
Press UP/DOWN

Until SEL is shown on small digits, Large digits show:

UI = universal inputs

AO = Analog outputs

FAN = Fan outputs

do = Binary, 3-point or PWM outputs
Press OPTION to select in or output type

UI

SEL

Press UP/DOWN to step through the number of available in- or outputs

Large digits show in-output type & number, Small digits show value

UI 01

25%

While in binary output mode,

Press OPTION key to display the total number of hours the binary output has been ON.

Large digits show in-output type & number, Small digits show running time in hours.

If the running time is larger than 9999 hours, 10000 hours are shown as level on the vertical bar.

The example on the right equals 50345h running time.

(Maximum runtime is 65535h = 7.5 years)

do 01

345h

New Feature with V1.3: Heat – Cool - Fan only – Auto selection

Display of in- and output values

Step 1: Select in- or output type

Step 2: Select ID of in- or output and display value

Step 3: Display total run time for binary outputs

Display of pulse counting inputs:

Pulse counting inputs may involve large numbers. If the number is larger than 4 digits, 8 digits will be shown. This is done
by blinking the larger 4 digits short and the lesser 4 digits long. On the upper right corner the further most right bar will
illuminate together with the lesser 4 digits, the one on its left side will illuminate together with the larger 4 digits.

Setting of user parameters

1. Press UP/DOWN buttons simultaneously for three seconds. The display will show firmware version and revision number. Press the
OPTION button to start login.

2. CODE is shown in small display. Select 009 using UP/DOWN buttons. The access numbers are fixed and cannot be changed.

3. Press OPTION after selecting the correct code. The user/display parameters are displayed immediately.

4. Select the parameters with the UP/DOWN buttons. Change a parameter by pressing the OPTION button. Three arrows are displayed
to indicate that the parameter may be modified. Use UP/DOWN buttons to adjust the value.

5. After you are done, press OPTION to save the new value and return to the selection level (arrows disappear when selection is saved).
Pressing left hand POWER button without pressing OPTION will discard the value and return without saving.

6. Press the POWER key to leave the menu. The unit will return to normal operation if no button is pressed for more than 5 minutes.

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TCX2-40863-MOD

SETUP AND CONFIGURATION

Parameter

Description

Range

Default

UP 00

Enable access to operation modes. This setting controls the power button

ON/OFF

ON

UP 01

Enable access to set points. This setting controls the UP / DOWN buttons

ON/OFF

ON

UP 02

Enable manual control in cascade and for fan speeds

ON/OFF

ON

UP 03

Enable change of heating/cooling mode. Controls if user is allowed to manually activate
heating, cooling or fan only modes.

ON/OFF

ON

UP 04

Enable access to set clock or change time schedules:

ON/OFF

ON

UP 05

State after power failure:
0= off; 1= on; 2= state before power failure

0, 1, 2

2

UP 06

Enable unoccupied Mode: Shift the setpoint to a lower temperature in winter or higher
temperature in summer in order to save energy. Unoccupied mode may be activated through
the POWER button, or with the external input (typically for key card switches, occupancy
sensors in combination with door contacts for hotels or meeting rooms.)

ON/OFF

OFF

UP 07

Celsius or Fahrenheit: ON= Fahrenheit, OFF= Celsius

ON/OFF

OFF (Celsius)

UP 08

Show idle display while no key is pressed for 30 seconds.

ON/OFF

ON

UP 09

Definition of idle display large digit: Select type of content (00= OFF):

0–6

1

01 = Input
02 = Control loop setpoint

03 = Analog output
04 = Fan

05 = Binary output
06 = Clock

UP 10

Definition of idle display large digit: Select content for large digits (0= OFF):
This setting depends on UP09.

0–12

1

Input:
1 = UI1
2 = UI2
3 = UI3
4 = UI4
5 = UI5
6 = UI6
7 = UI7
8 = UI8
9 = VI1
10 = VI2
11 = VI3
12 = VI4

Set point:
1 = LP1
2 = LP2
3 = LP3
4 = LP4

Analog output:
1 = AO1
2 = AO2
3 = AO3

Fan
1 = Fan 1
2 = Fan 2

Binary output:
1 = DO1
2 = DO2
3 = DO3
4 = DO4
5 = DO5
6 = DO6

UP 11

Definition of idle display small digits: Select type of content (same options as UP09)

0–6

2

UP 12

Definition of idle display small digits: Select content (same options as UP10)

0–10

1

UP 13

Definition of idle display vertical bar: Select type of content (same options as UP09)

0–6

3

UP 14

Definition of idle display vertical bar: Select content (same options as UP10)

0-10

1

UP 15

Show heating or cooling state while in idle display. OFF = Do not show, ON = Show

ON/OFF

ON

UP 16

OFF = Alarms display only while active, ON = Alarms display until confirmed,

ON/OFF

ON

UP 17

Clock display type (12/24): OFF= 24-hr ON= 12-hr (AM/PM)

ON/OFF

OFF(24hr)

UP 18

Reset timer for manual override in time schedule mode.
0 = Reset of override mode is not active. Time schedules overridden manually will be switched
back to scheduled mode at next switching event.
1…255 = Delay for the controller to go back to the scheduled OFF or unoccupied operation
mode if the operation mode is changed manually to occupied.

0–255 Min

60(Min)
UP 19

Constantly lit backlight for display:
OFF = The backlight is only on when a key has been pressed
ON = The backlight is constantly on

ON/OFF

OFF

UP 20

New Feature: Do not show input value in loop display
OFF = Input value is shown. Setpoint value is shown in the small digits.
ON = Only setpoint is shown. Input value is not visible in loop display. The setpoint is
shown in the large digits. In single loop fan coil mode, fan speed setting is shown in small
digits.

ON/OFF

OFF

UP 21

New Feature: Enable daylight savings mode. If enabled, internal real time clock will be
advanced by one hour in summer and delayed one hour in winter. Daylight savings scheme is
based on last Sunday of March for summertime and last Sunday of October for Winter time.

ON/OFF

OFF

UP 22

New Feature: TCX2 is in no-reply-mode for OPA2-VC communication
OFF = TCX2 is in normal mode for communication with OPA2-VC
ON = TCX2 is in no-reply-mode for communication with OPA2-VC
No-reply-mode: This mode allows connecting one operation terminal to multiple controllers.
One controller must be in normal operation mode and all the others must be set to no -reply­mode. The controllers set to no-reply-mode will follow each command issued by the operation
terminal. They will not send responses and their input, output or alarm conditions are not
monitored by the operation terminal.
Setting a controller with only one operation terminal to no-reply-mode will result in
communication error on the operation terminal. In this case parameter UP22 can still be
changed to 0 through the operation terminal.
To override no-reply mode in case only one controller in no reply mode is connected, press
UP&DOWN key together while logged into parameter changing mode.

ON/OFF

OFF

UP 23

New Feature: Wink function: the LED on top lights up constantly if ON
OFF = LED has normal function ON = LED is constantly active

ON/OFF

OFF

UP 24

New Feature: Summer / winter mode. Used for control loops, to select the corresponding
setpoint limits. Set in xL28
OFF = Summer mode (cooling), ON = Winter mode (heating)

ON/OFF

OFF

User and display parameters (Password 009)

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TCX2-40863-MOD

SETUP AND CONFIGURATION

Module

Description

PW

UP

User and display parameters

009

LP

Control loops Lp1 to Lp4

241

UI

Input configuration: 1U to 8U,

AL

Alarm configuration: 1AL to 8AL

FU

Special functions Fu1 to Fu5

AO

Analog output configuration, AO1 to AO3

FAN

Fan output configuration FAN1 to FAN2

DO

Binary output configuration, do1 to do6

Co

Communication setup (refer to separate communication brochure)

COPY

copy mode to copy full parameter sets between run, default and external memory
with up to 4 saving locations (AEC-PM1)

Setting parameters to configure the controller

TCX2 is a programmable controller with the flexibility to fit a wide range of applications. The control operation is defined
by parameters. They can be set using the standard operation terminal. There are two levels:

1. User/display parameters (default password 0009)

2. Control parameters (default password 0241)

Recommended set-up procedure:

1. Set jumpers on the back of the controller for inputs and outputs

2. Connect power supply and inputs

3. Make sure Celsius – Fahrenheit settings are correct (UP07)

4. Program input parameters

5. Program control parameters

6. Program output parameters

7. Program auxiliary functions and user settings

8. Test function of unit

9. Switch off power

10. Connect outputs

11. Reconnect power

12. Test control loop

Parameters are grouped according to modules:

How to change parameters

Note: Access to parameters may be inhibited by the supplier of the controller. In this case the below mentioned procedure
will not work.

1. Press UP/DOWN buttons simultaneously for three seconds. The display will show firmware version and revision
number. Press the OPTION button to start login.

2. CODE is shown in small display. Select 241 or the number provided by your supplier using the UP or DOWN button.
These are the default access numbers, your supplier may have changed those numbers or blocked access to the
parameters completely. Parameters should only be changed by authorized personnel.

3. Press OPTION after selecting the correct code. The user/display parameters are displayed immediately.

4. Once logged in with 241 control modules are displayed (UI, AL, LP, AO, FAN, DO, CO etc.) – select with UP/DOWN
and open with OPTION. Then select the ID with UP/DOWN keys: 1U, 2U, 3U etc., open with OPTION. As soon as the
module is open its parameters are displayed.

5. Select the parameters with the UP/DOWN buttons. Change a parameter by pressing the OPTION button. Three arrows
are displayed to indicate that the parameter may be modified. Use UP/DOWN buttons to adjust the value.

6. After you are done, press OPTION to save the new value and return to the selection level (arrows disappear when
selection is saved). Pressing left hand POWER button without pressing OPTION will discard the value and return
without saving.

7. Press POWER to leave parameter selection and return to control module selection.

8. Press the POWER to leave the menu. The unit will return to normal operation, if no button is pressed for more than 5
minutes.

How to select active alarms on outputs and special functions or weekdays in time schedules.

1. Select the parameter as described above

2. Press OPTION to start selecting alarms. AL 1 is now shown in the large digits.

3. Press UP to select the alarm 1, press DOWN to deselect the alarm 1. A selected alarm is visible by a dark triangle on
the bottom line of the LCD. The output or function will activate if the corresponding alarm is triggered.

4. Press OPTION to step to alarm 2. Repeatedly press OPTION key to step through all available alarms and select or
deselect them by pressing UP or DOWN.

5. Press POWER to leave the alarm selection routine and return to the parameter selection level.

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TCX2-40863-MOD

SETUP AND CONFIGURATION

Copying and restoring the entire parameter set

It is possible to backup and refresh the entire parameter set to a second onboard memory (default memory) or a plug-in
memory. This simplifies substantially the programming of multiple controllers with identical parameter sets.

Removable plug-in memory AEC-PM1

The plug-in memory is an accessory that can be plugged in on the right side of the TCX2. Once connected, the power LED
on the AEC-PM1 lights up. The memory can hold up to 4 individual parameter sets. It is easy for a site engineer to update
a variety of standard installations or for an OEM to program his standard setup based on application.

Auto-load

While copying a parameter set to eeprom, the user may choose the auto-load feature. With this feature set, the
parameters load automatically when powering up the controller. It is thus possible for a non-technical person to perform a
parameter update by simply powering up the controller with the AEC-PM1 plugged in.

Procedure to copy parameter sets

1. Login to engineering parameters as described above.

2. Press UP or DOWN until COPY is selected

3. Press the OPTION key. Select copy source: These are the options:

4. Press OPTION key. Now select copy destination: These are the options:

5. Press OPTION key. Your selection is shown on the large digits: source ID to target ID. For example run time

6. Press the OPTION key to conclude the selection. The Data LED on the AEC-PM1 plug-in blinks to indicate data

Exchanging parameter sets with a computer

Through a USB/RS485 converter it is possible to read and write parameter sets to a computer by the use a free program
called EasySet. The EasySet tool may be downloaded from the vectorcontrols.com website.
To exchange parameter sets, install the EasySetTM configurator program and plug in the USB/RS485 converter to your
computer. Connect the RS485 converter to the OP3 (+) and OP4 (-) terminal of the TCX2 using a twisted pair wire. If an
OPA2-VC is connected, you must first unplug it. In order to use EasySet, select the port of your USB converter first.
Parameter sets may now be read out from the TCX2 to the PC and written back to the TCX2. This makes it possible to
keep a parameter library on computer, exchange parameter sets through emails or keep a log file of all the projects
completed.

0. CLR  The copy destination will be erased

1. RUN  Run time memory

2. DFLT  Default: On board backup memory

3. EEP1  External memory folder 1 on AEC-PM1

4. EEP2  External memory folder 2 on AEC-PM1

5. EEP3  External memory folder 3 on AEC-PM1

6. EEP4  External memory folder 4 on AEC-PM1

1. RUN  Run time memory

2. DFLT  Default: On board backup memory

3. EEP1  External memory folder 1 on AEC-PM1

4. EEP2  External memory folder 2 on AEC-PM1

5. EEP3  External memory folder 3 on AEC-PM1

6. EEP4  External memory folder 4 on AEC-PM1

memory to eep1 is shown as 1to3. After confirming the selection, choose YES or AUTO to start the copy process.
Select NO to abort. AUTO s only available if the target is the external plug in. By selecting AUTO: The parameters
will load automatically when the controller is powered up while the AEC-PM1 is plugged in. If one plug-in has
several parameter folders with the AUTO flag set the one with the smallest index will be loaded.

New Feature for products with a communication plug-in. Selecting CO15 = 01 will write back an increased
address to the AEC-PM1 after a successful copy. This way it is easier to configure large projects.

communication in case it is copied to or from. PEND is shown while the copy process takes place.
There are several possibilities for the result:

 Good: The copy process was successful
 Fail: Err5, Communication problem. The plug in module is either damaged or missing
 Fail: Err6, Checksum mismatch. The checksum of the source data was incorrect. Data corruption.

This may happen if the plug-in has not been written to before or data corruption took place.

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TCX2-40863-MOD

INPUT & ALARM CONFIGURATION

01 u0

For universal inputs: 1U to 8U: Signal type (0= not active):

1= 0-10V or 0-20mA
2= 2-10V or 4-20mA
3= NTC
4 = open contact direct (contact open = 100%, closed = 0%)
5 = open contact reversed (contact open = 0%, closed = 100%)
6 = potentiometer input, assign to setpoint selection of control loop
7 = light control mode: toggle and dimmer switch
8 = pulse counting input.

0–8

1

01 u1

Display minimum value. See note below about display resolution.
For potentiometer input: lower range limit of potentiometer in 100 Ohm steps
New feature: only if xxu0 = 1, 2 or 6:

if minimum value is higher than maximum value, the input signal is reversed. 0%
input = 100% signal, 100% input = 0% signal

-50–205

0

01 u2

Display maximum value. See note below about display resolution.
For potentiometer input: Upper range limit of potentiometer in 100 Ohm steps
New feature: only if xxu0 = 1, 2 or 6:

if minimum value is higher than maximum value, the input signal is reversed. 0%
input = 100% signal, 100% input = 0% signal

-50–205

100

01 u3

Range of universal inputs (For analog inputs only: 1u0 = 1,2)

0 – 5

0

0 = x1
1 = x10
2 = x100

3 = square root
4 = square root x 10
5 = square root x 100

01 u4

Analog input unit: 0= no unit, 1= %, 2= °C /°F, 3= Pa

0–3

1

01 u5

When 01u0 = 1-5: Select number of samples taken for low pass filter: Filtering
prevents unwanted fluctuation of sensor signals. The controller measures signal inputs
every second and calculates the input signal based on a number of measured values
and a digital low pass filter. Take into account that signal reaction delays as the number
of samples taken for the filter increases.
Note: changing this value will as well change 01u8

0–100

3

01 u6

Sensor calibration

Per input range

0.0

01 u7

Calculate mathematical function over multiple inputs (0=not active):
1= average, 2= minimum, 3= maximum, 4= differential UI(n) – UI(n-1)

0–4

0

01 u8

New Feature:
When 01u0 = 7 (light switch), select auto switch off time. Set to 0, if output should not
automatically switch off.
Note: Shared value: changing this value will as well change 01u5

00:00s...15:10h
MM:SS...HH:MM

00:15

MM:SS

Input & alarm/interlock configuration

Universal inputs (analog, binary or passive)

 Set jumpers on the back of the controller: 0–10VDC (default), 0–20mA, or RT/DI (passive temperature or binary)
 Match sensor range to input display. With a differential pressure transmitter having 0–200 Pa measuring range set

01U1 display minimum to 0 and 01U2 display maximum to 200. The allowable range value of -50–205 may be
adjusted with multipliers in 01U3. The largest displayable values are -990–9999.

 Passive temperature input is NTC 10k@25°C (77°F). Specified accuracy can only be guaranteed using Vector Controls

Sxx-Tn10 sensors. Range values described above also apply to temperature inputs.

 Display resolution (01u1 and 01u2)

Limiting the display range increases set point resolution. A range <25 provides set point steps of 0.1°C (0.2°F). A
range <125 provides set point steps of 0.5°C (0.1°F). Larger ranges increase by 1 step. Square root input range
(0xu3) has no influence.
Note: Fahrenheit and differential steps are doubled.

 New Feature: open contact as input type (01u0 = 4 or 5): For an open contact input set the jumper to RT/DI

and parameter 01u0 to open contact (4 or 5). If set to 4 (open contact direct), an open contact reads as a high value
(100%), a closed contact as a low value (0%). If set to 5 (open contact reversed), an open contact reads as low
value (0%) and a closed contact as high value (100%). Note: sensor calibration does not work for binary inputs.

 New Feature: potentiometer input (01u0 = 6). A potentiometer may be connected to a passive input to control

the setpoint of a control loop. With the input display minimum and maximum values the range of the potentiometer
can be defined in 100 ohms steps. For example setting the 1u01 to 50 and 1u02 to 120 represents a potentiometer
from 5k to 12k Ohm. The resistance is measured and calculated into a 0-100% value. Based on the potentiometer
input, the setpoint will now be moved between the upper and lower setpoint limits of the control loop. There are other
uses for the potentiometer input. For example, the controller can be enabled and disabled remotely with a
potentiometer using an input in potentiometer mode assigned to the Auxiliary Function Enable/Disable (1FU). Or use
Alarm/Interlocks assigned to the potentiometer input to activate or deactivate outputs. With the potentiometer fully
on, for example, another interlock could activate a boost mode. The potentiometer could then read OFF (65°F) to Full
(85°). Add one more wire connected to a 10k-2 resistor and measure the room temperature as well. Thus with 3
wires in total ( potentiometer, common, room temperature) a well-functioning low cost operation terminal may be
realized.

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TCX2-40863-MOD

INPUT & ALARM CONFIGURATION

01 u0

For universal inputs: 1U to 8U: Signal type (0= not active):

1= 0-10V or 0-20mA
2= 2-10V or 4-20mA
3= NTC
4 = open contact direct (contact open = 100%, closed = 0%)
5 = open contact reversed (contact open = 0%, closed = 100%)
6 = potentiometer input, assign to set point selection of control loop
7 = light control mode: toggle and dimmer switch
8 = pulse counting input.

0–8

8

01 u1

Not used

-50–205

0

01 u2

Value to be added with each pulse. For single pulse counting set to 1.
This value will only be used if u7 = 0.

-50–205

1

01 u3

Range of universal inputs

0 = x1
1 = x10

0 – 1

0

01 u4

Analog input unit: 0= no unit, 1= %, 2= °C /°F, 3= Pa

0–3

1

01 u5

Save value to eeprom, only after every n sample will the data be saved to eeprom.

The eeprom allows for 100’000 guaranteed saves. In order to guarantee reliable

operation this multiplier should be set to prevent premature aging of the controller.
0 = 1 every sample is saved.
1 = 10 after 10 samples data is saved to the eeprom
2 = 100 after 100 samples data is saved to eeprom
3 = 1000 after 1000 samples data is saved to eeprom

0..3

0

01 u6

Reset counter: any value other than 0 will reset the counter.
Once this value is set to 1 and saved, the counter will be reset to 0 immediately.

0...255

0

01 u7

Select Input whose value is used to be added with each pulse.

0–12

0

 New Feature: light control mode: toggle and dimmer switch (01u0 = 7): Manage lighting with TCX2 and

special functions such as alarms, time schedules and automatic occupied/unoccupied mode switch can be used for
occupant convenience and to reduce lighting costs. With this feature building light is controlled by using push-button
switches in the room connected to passive inputs on TCX2. A passive inputs is assigned directly to an output
connected to a relay for the light. This is achieved by setting xd01 to 9. An analog output is assigned directly to an
input by assigning xA00 to 7. Use binary outputs for on/off lights or add an analog output for dimming. Pressing the
push-button switch for less than 2 seconds will toggle the binary output. For dimming, pressing the push-button
switch for longer than 2 seconds will change the input value by 10% per second from 0% to 100% and again back to
0%.

Pulse counting mode

 New Feature: pulse counting mode: (01u0 = 8): With this feature it is possible to count pulses from a water or

energy meter and summarize a constant value or the result of an input.

 For frequent pulses the summary option of u5 is recommended. This will save only every 10

th

100th or 1000th pulse to
the eeprom and keep the values until then in RAM. This bears the risk that those values will not be remembered after
a power failure.

 With u07 the value of two inputs may be used in conjunction with the Pulse Counting Input to calculate energy

consumption. For example, apply the Mathematical Function-Differential to supply and return water temperature for a
heating system. The calculated value of a series of inputs is shown on the input with the higher number. When UI1
supply water temperature and UI2 return water temperature both have Mathematical Function-Differential parameter
selected the difference between supply and return temperature will be shown on UI2. When the Pulse Counting input
parameter u07 is set to 2, the difference between supply and return temperature is added to the total at each pulse
of the flow meter. This total then represents energy consumption.

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TCX2-40863-MOD

INPUT & ALARM CONFIGURATION

01 u0

For virtual inputs: 9U to 12U: Select signal source

1 = Operation terminal OPA2-VC, OPU2-2TH-VC, etc.
2 = Bus module: AEX-MOD (Modbus), AEX-BAC (BACnet)

0–2

0

01 u1

Display minimum value

-50–205

0

01 u2

Display maximum value

-50–205

100

01 u3

Range of universal inputs (For analog inputs only)

0 – 2

0

0 = x1
1 = x10
2 = x100

01 u4

Analog input unit of measure: 0= no unit, 1= %, 2= °C /°F, 3 = Pa

0–3

2

01 u5

Not used for virtual inputs. Do not change

0–100

12

01 u6

Sensor calibration

Per input range

0.0

01 u7

Calculate mathematical function over multiple inputs (0=not active):
1= average, 2= minimum, 3= maximum, 4= differential UI(n) – UI(n-1)

0–4

0

01 u8

New Feature:
Select timeout: If the value is not updated within the specified time period, the input
will be disabled. If the input is assigned to an active control loop or a function
configuration error Err4 is shown.

00:00s...15:10h
MM:SS...HH:MM

01:00

MM:SS

Virtual input configuration

 Virtual inputs may originate from a remote operation terminal such as the OPA2-VC or from a bus master if a

communication module such as the AEX-MOD for MODBUS or AEX-BAC for BACnet is present.

 The remote input has a selectable timeout. If the value is not updated within this timeout, the input will be disabled

and the configuration error Err4 is shown. Rewriting the input value will re-enable the input but will not clear Err4.
Err4 can only be cleared by acknowledgement through the right key. Setting the timeout to 0 disables its function.
For control functions, the timeout should not be disabled.
While no additional setup is required on the OPA2, the bus master needs to write its value to the correct address for
the input within the timeout period. Details are described in the documentation of the communication module.

 Inputs of OPA2-VC:

The OPA2-VC has one temperature input. This input is assigned to the first virtual input. For the TCX2-40863 this
would be input 9. To use the temperature input of OPA2-VC, set 09u0 = 1.

 Inputs of OPA2-2TH-VC or OPU2-2TH-VC:

The OPA2-2TH-VC has a temperature input, a humidity input and 2 binary inputs. These inputs are assigned to
following virtual inputs:

1. VI1 = UI9 = temperature input

2. VI2 = UI10 = humidity input

3. VI3 = UI11 = input 1

4. VI4 = UI12 = input 2

Mathematical functions on inputs

 Square root calculation on input values: The input signal maybe subjected to the square root function prior to

calculating the display values. The square root is calculated from the input signal and the result is again conditioned
to 10bit resolution. The square root function is useful when airflow needs to be calculated from differential pressure,
as in VAV systems for example.

 Calculate mathematical functions over multiple inputs for loop control or display with xxU7. In order to calculate

average, minimum or maximum between several inputs, make sure all the inputs are of identical type and range and
then activate the same function on xxU7 on all the selected inputs. The largest input of the group selected will carry
the calculated value. For example: When average is activated on 02U7 and 01U7 = 1, the average is carried on
universal input 2.

UI2 may now be used as input for control loops and it will show the average value of UI1 and UI2 combined.
It is possible to use different functions on different inputs. For example: minimum of UI1 and UI3 and maximum of
UI2 and UI4.

 The differential function may only be calculated on subsequent inputs. Such as UI2-UI1. The function must only be

activated on the minuend (a number from which another number is subtracted) – UI2 in this example. The displayed
value of the minuend will change into the difference: UI2 in – UI1 = UI2 out. It is possible to have multiple
differentials on one controller. It is not possible to reverse the subtraction: UI1-UI2.

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