Automated Logic T-Line, T320, T320v, T540, T540v Technical Instructions

T-Line (TNI v4.7)
Technical Instructions

Contents

Description ................................................................................................... 3

Specifications .............................................................................................. 3

Point Capacity.............................................................................................. 4

Limitations ................................................................................................... 5

T-Line Modules Not For Time Critical Applications............................ 5

Trending................................................................................................. 5

T-Line Mounting........................................................................................... 5

Addressing ................................................................................................... 6

Virtual Modules...................................................................................... 6

Default Algorithm Downloader............................................................. 6

Power and Communication Wiring............................................................. 8

Important Notice................................................................................... 8

Calculating Wire and Transformer Requirements for a

Bus Power Wiring Configuration ................................................... 9

T-Line Module Wiring .......................................................................... 10

Adding T-Line Modules ............................................................................. 14

Hardware Procedure ........................................................................... 14

Software Procedure ............................................................................ 14

Zone Sensor Wiring ................................................................................... 14

Standard Zone Sensor ........................................................................ 14

(Using the Enhanced Zone Sensor Port) ........................................... 14

Enhanced Zone Sensor....................................................................... 14

Using the Enhanced Zone Sensor............................................................ 15

Local Setpoint Adjust ......................................................................... 15

Timed Local Override.......................................................................... 16

Occupancy Indication ......................................................................... 16

Local Access (Optional) ............................................................................ 16

Procedure ............................................................................................ 16

Input Wiring................................................................................................ 17

Table 1: Input Wiring Guidelines....................................................... 17

Procedure ............................................................................................ 17

Custom Translation Tables....................................................................... 18

Procedure ............................................................................................ 18

Channel Numbers ...................................................................................... 20

Table 2: T540 and T320 Module Outputs .......................................... 20

Table 3: T540v and T320v Module Outputs ...................................... 21

Table 4: All T-Line Module Inputs ..................................................... 22

Digital Output Wiring ................................................................................. 23

Connecting the Flow Sensor

(T320V, T540V only) ............................................................................ 23

Calibrating the Flow Sensor ..................................................................... 23

Adjusting the Zero Point..................................................................... 23

Parameter Page.......................................................................................... 24

Applies to models:
T320 T320v T540 T540v

Rev. (29-JUN-99) • TNI v4.7

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©1995-99 Automated Logic Corporation

Status Page ................................................................................................ 24

Adjusting the Flow Sensor Gain ........................................................ 25

Checkout & Troubleshooting.................................................................... 25

Downloading Memory ............................................................................... 25

LEDs ........................................................................................................... 26

LED Power-up Sequence .................................................................... 26

Fuses .......................................................................................................... 26

Production Date ......................................................................................... 27

Using Quick-Disconnects ......................................................................... 27

Crimping & Terminating Quick-Disconnects .................................... 27

Removing Quick-Disconnects............................................................ 28

Rev. (29-JUN-99) • TNI v4.7

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©1995-99 Automated Logic Corporation

Description

Specifications

The T-Line is part of the I/O Hardware family of control
modules and is designed specifically for zone control.
The T-Line consists of the T320, T320v, T540, and
T540v ("v" indicates the board has a flow sensor). A
single main board provides the power circuitry, the
microprocessor, and nonvolatile memory. The name of
the module indicates the number of outputs and inputs
which it provides. The T-Line modules are designed to
be mounted directly on the equipment being controlled,
such as VAV boxes, heat pumps, unit ventilators, and fan
coil units.

Each T-Line module communicates with the CMnet
through a Tnet Interface module (TNI) (see Figure 6).
Each T-Line module can store an optional default
algorithm (see T-Line Default Algorithm Downloader TI
for more information) which maintains the space
temperature in the event that communications is lost with
the TNI module.

Each T-Line module is associated with a single T-Line
Graphic Function Block (GFB) downloaded into the TNI
module. Sample T-Line GFBs are available from the
BBS which can be used as a starting point for
customizing the GFBs for your specific application.
However, before customized FBs can be downloaded,
they must be made in Eikon according to the Zone GFBs
standards. The small percentage of Zone GFBs which
can not be made in Eikon can be reviewed and encrypted
by Dealer Services.

NOTE: To operate this module based on a schedule, it
must be networked with a Gateway module.

Power: 24 VAC ±10%, 50-60 Hz, 2.4 VA (0.10A)
maximum.

Inputs: T320/T320v - (2) Dry contact or thermistor.
T540/T540v - (4) Dry contact or thermistor, two of which
can be configured as 0-5 VDC.
Custom translation tables allow nonstandard signals.
If used, the RSZ+ requires 2 inputs.

Outputs: (T320,T320v = 3; T540, T540v = 5): Digital
outputs, rated 1 Amp @ 24 VAC. See Figure 2 for
allowable configuration.

Flow Sensor: (T320v, T540v only) Range of 0-2" w.c.,

0.003" wc resolution.

Status Indicator: LED indicators for visual status of
receive, transmit/run, and each output.

Communications: EIA-485 port for communicating
on the Tnet.

Memory (T-Line): Non-volatile storage of default
control algorithm.

Memory (TNI): 128k bytes of non-volatile storage
divided into 8 banks of 16k per module (virtual and real).

Protection: Bussed output relays to eliminate phasing
problems, surge protection on network lines and on input
power, arc suppression on relays. (Use the Optional
T-net Protection Board (TNPB) which is available for
additional network surge protection.)

4"

Rev. (29-JUN-99) • TNI v4.7

61/2"

37/8"

Figure 1: T540 Top and Side View Dimensions

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©1995-99 Automated Logic Corporation

11/2"

Fault Detection: Hardware watchdog timer.

Temperature: Operating temperature range is 0-130 °F

(-17.8 to 54.4 °C), non-condensing.

Dimensions: (T320, T540) 4" x 4" x 1 1/2"
(T320V, T540V) 5" x 4" x 1 7/8".

Point Capacity

No. of DO

T320v 3 2 0-2" WC

No. of

AI/DI*

Velocity

Pressure

A/D Input Resolution: 10 bit.

Processor: Microchip PIC16C57, 11.06 MHz, 2k

ROM, 72 bytes RAM.

Listed by: PAZX (UL 916).

Allowable Digital Outputs

T540* T540V* T320 T320V

Start/Stop 1,2,3,4,5 3,4,5 1,2,3 3 only

T320 3 2 --

T540v 5 4 0-2"WC

T540 5 4 --

* Two inputs (the only inputs on the T320 and

T320v) may be accessed through the enhanced
sensor port using an Insulation Displacement
Connector (IDC). If used, the Enhanced Zone
Sensor (RSZ+) will require two of the available
inputs.

Pulse Width
Modulation 1,2,3,4 3,4 1,2,3 3 only

FM Output 1 -

Open 1 3 1 none
Close 2 4 2 none

FM Output 2 -

Open 3 none none none
Close 4 none none none

VAV Flow
Output** -

Open none 1 none 1
Close none 2 none 2

* - Digital output 5 can only be used for start/stop control.
** - Digital outputs 1 and 2 can only be used for VAV Flow control on the
T540v and T320v.

Figure 2: Allowable T-Line Digital Output Configuration

Rev. (29-JUN-99) • TNI v4.7

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©1995-99 Automated Logic Corporation

Limitations

1. No pulse accumulation inputs are allowed on T-Line
FBs, except for the TLO button reserved for the
enhanced zone sensor (RSZ+).

2. The TLO button on the RSZ+ can only be connected
to Universal Input #2 on the T-Line's enhanced zone
sensor port (pin 3).

Trending

Using virtual modules to increase the number of FBs in
the TNI decreases the memory available for trending. If
all 40 FBs are used, only a very limited number of points
can be trended. No enhanced trending capabilities are
available.

3. For T540 and T540V, digital output 5 can only be
used for start/stop control.

4. Digital outputs 1 and 2 can only be used for VAV
Flow Control on the T540v and T320v.

Figure 2 lists the possible output configurations of the
T-Line modules.

T-Line Modules Not For Time Critical
Applications

T-Line modules have been designed to meet low-end,
high-volume terminal control applications. As a result,
time-critical applications (such as short time delays and
trend intervals of less than one minute) should not be used
with these modules. ALC recommends that all time delay
functions and trend intervals on T-Line FBs be set to
greater than or equal to 1 minute.

No pulse accumulation inputs are allowed on T-Line FBs,
except for the TLO button reserved for the ALC enhanced
zone sensor (RSZ+).

T-Line Mounting

NOTE: Before mounting any T-Line board, make note
of the board's I.D. number. The board I.D. number can be
found on the large 28 pin integrated circuit (I.C.) (see
Figure 5).

1. Remove the T-Line board from the Snap-Track.

2. Position the Snap-Track in a convenient location,
providing at least 1½" clearance on each side for
wiring purposes. Mount by using self-drilling screws
and drill directly into the plastic near the edges of the
Snap-Track so that the screws will be visible when
the T-Line board is installed (see Figure 3). This
prevents loose screws from shorting out the back of
the T-Line Board.

3. Mount the T-Line board on the Snap-Track by
pushing it firmly into the grooves.

Rev. (29-JUN-99) • TNI v4.7

VAV BOX

Figure 3: Mounting a T-Line Module

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T540 MODULE

©1995-99 Automated Logic Corporation

Addressing

T-Line modules are not addressed by dip switches;
instead they are programmed with an I.D. number at the
factory. The board I.D. number can be found on the large
28 pin I.C. Enter this number on the parameter page of
the TNI Function Block (FB #15). See Parameter Page
on page 24.

Virtual Modules

NOTE: The use of virtual modules decreases the
memory available for trending.

use the maximum of 40 GFBs per TNI, the TNI will use
the real module and at least three virtual modules to store
GFBs.

In some cases, a module (real or virtual) will not support
10 GFBs due to the size of the GFBs. For those cases, it
is necessary to add one or more virtual modules and
distribute the GFBs among them. For example, a TNI
may contain 8 modules (1 real and 7 virtual), each
containing 5 GFBs (8 x 5 = 40). Some room should be
left in the physical module's memory for enhancement
and features to be added to the module driver. See the
section "Adding T-Line Modules" for more information
on hardware and software procedures.

As shown in Figure 4, a TNI has the capability of acting
as one real module and seven virtual modules. This
allows one TNI to have a total of eight addresses either in
sequence or not. Each module (real or virtual) contains
16k bytes of memory. Virtual modules are addressed on
the module driver (FB #15) parameter page. The virtual
module addresses do not have to be contiguous if the TNI
exec is 4.07 or higher. The TNI itself (real module) is
physically addressed using the hardware dip switches.

TNI modules allow for the use of virtual modules in order
to increase the maximum number of GFB's that may exist
in each TNI (see Figure 4). Each TNI virtual module is
an addressable node on the CMnet that may contain up to
10 GFBs (if memory allows) and one module driver (FB
#15) as long as the maximum of 40 GFBs per TNI
module (including virtual modules) is not exceeded. To

CMnet - Maximum 700 GFBs

address = 10

The CMnet can support up to 100 control modules (1 FB
each) and 700 GFBs (not including module drivers) for a
total of 800 FBs.

Default Algorithm Downloader

NOTE: For more information, please reference the
T-Line Default Algorithm Downloader TI (part no.
TITDAD).

Each T-Line module has the capability of storing a
default algorithm which maintains the space temperature
in the event that communications are lost with the TNI
module.

NOTE: Each T-Line FB uses channel 27 to indicate
whether communications are good (DI=ON) or bad
(DI=OFF).

TNI

Real

module

address = 18

G4106e

Virtual

Modules

address = 27

Rev. (29-JUN-99) • TNI v4.7

11 12 13

G4106e

address = 19

2526 23 22

Figure 4: Addressing the TNI

14 15

16

17

TNI

Real

module

Virtual

24

21

Modules

20

CMnet

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©1995-99 Automated Logic Corporation

VAV Flow

Sensor *

Tnet

Universal **

Inputs

Sensor Inputs

Grounds

Tnet

Fuses

Power

Jumper

HI

LO

+

IN1

-

IN2

IN3

24 VDC

GND

1.1
V

18315

IN4

Input Jumpers **

* - Not present on T540 and T320 models
** - Not present on T320v and T320 models

T-card Address

1

2

3

4**

5**

Enhanced Zone Sensor

Port (UI’s 1 & 2)

Output

Bus

Digital

Outputs

TNI

Tnet

TNPB

CMnet

Figure 5: T540v module layout

Maximum 100 Control Modules

R683

Maximum 40T-LineModulesPerTNI

Maximum 20 Modules Before REPOPT

T-Mod

1500 ft. Maximum Length of Tnet Wire

before REPOPT

T-Mod

G8102 Z540v

T-Mo d

RSZ+RSZ+

Maximum 20 Modules

Beyond REP OPT

REPO PT

1500 ft. Maximum Length

of Tnet Wire after REPOPT

(Distance c an be extended

with additional REPOPTs)

TNPB

RSZ+

Rev. (29-JUN-99) • TNI v4.7

Figure 6: Tnet Architecture

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©1995-99 Automated Logic Corporation

The T-Line Default Algorithm Downloader is a
communications program which enables you to download
default algorithms from your computer directly to the
T-Line modules. The computer connects with the T-Line
modules through an Opto Repeater or Tnet Adapter.
Refer to the T-Line Default Algorithm Downloader
Technical Instructions for more details.

Power and Communication Wiring

1. Connect the 24 VAC power wires to a single T-Line

module as described in the following steps.

a. Terminate AC power at the wiring source

(usually a circuit breaker or other AC source).

b. Terminate power to the high voltage side of the

transformer.

c. Remove the T-Line's power jumper (see Figure

5). This prevents the module from being
powered up until proper voltage is verified.

Important Notice

Avoid damaging the T-Line modules
communication circuits.

• IF you have multiple T-Line modules powered

by the same transformer,

OR

• IF you have multiple T-Line modules powered

by separate transformers, but have their grounds
connected (either through wires or through
conduit),

THEN you must observe the same polarity on the
T-Line modules’ AC-power connections.

CAUTION: The T-Line modules are Class 2 devices
(less than 30 VAC). Take appropriate isolation
measures when mounting a T-Line module in a control
panel where Class 1 devices or wiring are present.

NOTE: If wiring the T-modules together in a bus power

configuration (several T-modules sharing a single
transformer as shown in Figure 8), care must be taken in
the wiring and transformer sizing. The average current
value for a T-module is 100 mA (0.1 Amps), but the peak
current value for a T-540v with all outputs on is 670 mA.
Therefore, the wire and transformer must be sized larger
than apparent from the averaged value of the module VA
rating. See Figure 7 on calculating wire and transformer
requirements for a bus power configuration.

NOTE: To protect the Tnet communication wires,
ALC highly recommends installing TNPBs at the
beginning and end of each Tnet leg as shown in Figure

6.

d. Terminate the two power wires to the 24 VDC

and GND terminals indicated in Figure 5. Note
the polarity. See "Using Quick Disconnects"
later in this document for guidelines.

e. Verify that 24 VAC is present at the power input

and replace the power jumper.

2. Connect the Tnet communication wires to the same
T-Line module as described in the following steps.

a. Remove the module's power jumper.
b. Check the Tnet communication wiring for shorts

and grounds.

c. Terminate the Tnet communication wires to the

Tnet screw terminals indicated in Figure 5.

Note the polarity of the Tnet wires coming
from the TNPB.

d. Replace the module's power jumper.

3. Go to the next T-Line module on the Tnet and
connect the AC power wires as in step 1, using the
same polarity as on the first T-Line module. Do not
connect the communication wires yet.

4. To check for proper power polarity, measure the AC
voltage between one of the communication wires and
one of the communication terminals. If the AC
voltage is greater than 5 VAC, reverse the T-Line
module’s power wires and remeasure.

• If the voltage is still greater than 5 VAC, then

check for one of the improper wiring
configurations on page 12. Rewire the T-Line
modules according to one of the figures on
page 10 and remeasure.

NOTE: Whenever possible, terminate and verify power
and communications to all modules before terminating
any inputs or outputs.

BEFORE wiring power or communications to any
T-Line modules on the Tnet, use the following procedure.

Rev. (29-JUN-99) • TNI v4.7

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©1995-99 Automated Logic Corporation

Calculating Wire and Transformer Requirements for a

Bus Power Wiring Configuration

BB

oard Typeoard Type

B

oard Type

BB

oard Typeoard Type

Max. Peak CurrentMax. Peak Current

Max. Peak Current

Max. Peak CurrentMax. Peak Current

Average CurrentAverage Current

Average Current

Average CurrentAverage Current
(Fluke model 77)(Fluke model 77)

(Fluke model 77)

(Fluke model 77)(Fluke model 77)

True RMS CurrentTrue RMS Current

True RMS Current

True RMS CurrentTrue RMS Current
(Beckman model 4410)(Beckman model 4410)

(Beckman model 4410)

(Beckman model 4410)(Beckman model 4410)

T540/T540v 0.670 A 0.176 A 0.117A (all outputs on)
T320/T320v 0.575 A 0.148 A 0.095 A (all outputs on)

To avoid excessive voltage drops, use the following formula (copper wire):

Wire Resistance =

(# of T-modules) * (max. peak current)

5 V drop allowed

Example: Six T540v modules

1.24 Ohms =

5 Volts

6 * 0.670 A

The above formula and resulting values in feet are conservative and do not take into account the decreased current as
the wire pair extends past each module.

From the above Formula:
The total resistance allowed when wiring six T540v modules = 1.24 ohms

From the Wire Table:
12 AWG wire has a resistance of 1.588 ohms per 1000 feet.

1.588 Ohms
1000 ft

1.24 Ohms
X

1.588 X = 1240 => X = 780.85 ft.

Thus, you can use a total of 780 ft. of 12 AWG wire to
connect the six T540v modules. This means that you can
run a pair of wires to the modules a distance of 390 ft.,
after that distance you will need to add another
transformer.

The sizing of the transformer should be adjusted to
compensate for the non-sinusoidal waveshape of the
current requirements. The VA rating of the T-module
should be multiplied by three (3) when computing
multiple T-modules being supplied by one transformer.

Example: Six T540 modules
(6 modules) ∗ (2.4 VA per module ∗ 3) = 43 VA

Gauge No. (AWG)

Wire Table

Ohms per 1000 ft

at 20 C (= 68 F)

10 0.9989

11 1.260

12 1.588

13 2.003

14 2.525

15 3.184

16 4.016

17 5.064

18 6.385

19 8.051

20 10.15

21 12.80

22 16.14

23 20.36

24 25.67

(A 40 VA transformer would be reasonable since all
outputs would not be on simultaneously.)

Figure 7: Calculating Wire and Transformer Requirements for a Bus Power Configuration

Rev. (29-JUN-99) • TNI v4.7

NOTE: Resistances shown in the table above are for
solid wire only. If you are using stranded wire, refer to
the wire manufacturer’s specifications to determine the
proper resistances.

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©1995-99 Automated Logic Corporation