BASR
BAS Remote
Versatile Building Automation Appliance
INSTALLATION GUIDE
INTRODUCTION
The BAS Remote series provide the system integrator a flexible building
block when integrating diverse building automation protocols or when
expanding the number of points in a building automation system. By
supporting open system protocols such as BACnet®, Modbus and Sedona
Framework SOX, the BAS Remote series is easily adaptable. For small
systems, it can operate stand-alone. For larger systems, it can communicate to
supervisory controllers over Ethernet. Depending upon the model, the BAS
Remote has the flexibility to provide the following:
Versatile Control Device — remote I/O, router, gateway and controller
Web-page configuration
BACnet/IP Remote I/O
Modbus TCP Remote I/O
Modbus Serial to Modbus TCP Router
Modbus Serial to BACnet/IP Gateway
Modbus Master to Attached Modbus Slaves
Powered by Sedona Framework™ Controller
Power over Ethernet (PoE)
Customizable web pages
Web Services
Flexible Input/Output — expandable by adding modules
Six universal input/output points web-page configurable
Two relay outputs
Thermistors, voltage, current, contact closure and pulse inputs
Voltage, current and relay outputs
2-wire Modbus Serial Expansion port
2-wire expansion port for up to three expansion I/O modules
The BAS Remote Master provides the ultimate in flexibility. It can be used for
expansion I/O at remote locations where an Ethernet connection exists. Its
built-in router and gateway capabilities address unique integration needs
where more than one communications protocol is involved. It can operate as a
function block programmable controller with its resident Sedona Framework
Virtual Machine. Powered by a Linux engine, the BAS Remote Master can
operate as BACnet/IP and Modbus TCP remote I/O, Sedona Framework
controller, Modbus Serial to Modbus TCP router, Modbus Serial to BACnet
gateway, and Modbus master to attached Modbus slaves all at the same time.
A 10/100 Mbps Ethernet port allows connection to IP networks and popular
building automation protocols such as Modbus TCP, BACnet/IP, and Sedona
SOX. Six universal I/O points and two relay outputs can be configured
through resident web pages using a standard web browser and without the
need of a special programming tool. A 2-wire Modbus serial port can greatly
expand the I/O count with built-in routing to Modbus TCP clients. If BACnet
mapping is preferred, the unit incorporates a Modbus serial to BACnet/IP
gateway. The BAS Remote Master also allows you to install custom web
pages so you can view the status of your system in a convenient manner. And
using its onboard Web Services, your IT department can easily interact with
the BAS Remote Master.
Additional universal I/O can be achieved with the simple addition of BAS
Remote Expansion modules. The BAS Remote PoE has the same capabilities
as the BAS Remote Master except it is powered over the Ethernet connection
thereby providing a ―One Cable Solution‖.
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SPECIFICATIONS
Electrical (± 10%) BASR-8M/P BASR-8M BASR-8X
DC AC DC AC DC AC
Input voltage: 48 V N/A 24 V 24 V 24 V 24 V
Input power: 10 W N/A 10 W 17 VA 8 W 17 VA
Input frequency: N/A N/A N/A 47–63 Hz N/A 47–63 Hz
(All modules intended for use with Class 2 circuits.)
Loop Supply +24 VDC, 150 mA max +24 VDC, 150 mA max
Communications
BACnet/IP or Modbus TCP: ANSI/IEEE 802.3, N/A
10BASE-T/100BASE-TX
Ethernet Data Rates: 10/100 Mbps N/A
Modbus Serial: Modbus Master Serial ASCII or RTU N/A
2-wire, non-isolated EIA-485
2.4, 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 kbps
100 m max segment length
Expansion Bus: N/A Proprietary protocol
100 m max segment length
Protocol Compliance
BACnet/IP: ASHRAE 135-2004, Annex J N/A
B-ASC Profile
Modbus TCP: Modbus Appl. Protocol Spec. V1.1b N/A
Dec. 28, 2006 (modbus.org)
Modbus Messaging on TCP/IP Impl. Guide V1.0b
Oct. 24, 2006 (modbus.org)
Modbus Serial: Modbus over Serial Line Spec. and N/A
Implementation Guide V1.02b
Dec. 20, 2006 (modbus.org)
Regulatory Compliance
RoHS, CE Mark
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Figure 1 — RJ-45 Jack
Environmental
Operating temperature: 0°C to +60°C
Storage temperature: –40°C to +85°C
Humidity: 10% to 95%, non-condensing
Universal I/O (Channels 1–6) — Software configurable
All protected for: short-circuit and over-voltage up to 24 VAC
Analog inputs: 10 bit resolution, 0–10 V or 0–20 mA
(Input impedance 100 kΩ on voltage, 250 Ω on current)
Thermistor support: 10 kΩ Type II or Type III
(+40º to +110 ºF / +4.4º to +44ºC)
Digital inputs: dry contact or pulses to 40 Hz with 50% duty cycle
(User scalable, 0–10 VDC or 0–20 mA)
Analog outputs: 12 bit resolution, 0–10 V or 0–20 mA , user scalable
(Max load 750 Ω when using current output.)
Digital Outputs (Channels 7 & 8)
Each channel: ―Form C‖ relay (NO and NC) rated 30 VAC/VDC, 2A
LED Indicators
Status: green/red
Ethernet: green/yellow
I/O Points: green/red
Ethernet Pin Assignments (MDI)
1 TD+ 3 RD+
2 TD– 6 RD–
(The pins below are used only on BASR-8M/P.)
4 +48 VDC 7 0 V
5 +48 VDC 8 0 V
Mounting DIN-rail or panel-mount
Shipping Weight 1 lb. (.45 kg)
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PRODUCT IMAGES (WITH PANEL-MOUNTING TABS REMOVED)
Figure 2 — BAS Remote Master Image
Figure 3 — BAS Remote Expansion Image
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PRODUCT IMAGE (WITH PANEL-MOUNTING TABS REMOVED)
Figure 4 — BAS Remote PoE Image
MECHANICAL (WITH PANEL-MOUNTING TABS DISPLAYED)
Figure 5 — BAS Remote Dimensional Drawing for All Models
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INSTALLATION
The BASR is intended to be mounted in an industrial enclosure or wiring
closet on 35-mm DIN-rail or panel-mounted with screws (not provided). The
panel-mounting tabs are packaged in a plastic bag within the shipping box.
To use these tabs, Figure 6 illustrates how the two studs of each tab are press
fitted into their respective holes in opposing corners of the case. See Figure 5
for the mechanical details.
Figure 6 — Attaching Panel-Mounting Tabs
CONNECTING EXPANSION EQUIPMENT
Input/output points beyond those available from the BAS Remote Master
module can be increased by adding BAS Remote Expansion modules or by
attaching Modbus serial devices to the MB bus. The MB port is used for
connecting to 2-wire Modbus serial devices while the DN port is used for
connecting to BAS Remote Expansion modules. Both ports are non-isolated
EIA-485 compatible.
When installing equipment, make a record that identifies the power source,
equipment locations, IP and MAC ID numbers, protocol in use, baud rate,
cable colour coding, etc. — anything that will be helpful for future staff.
Expansion Module Connections
Expansion modules are intended to occupy positions to the right or left of the
master module on the same DIN-rail or on additional DIN-rails within the
same control panel. In this situation only a short 2-wire twisted-pair cable is
needed for making connections between DN on the master module and UP on
the first expansion module. Up to three expansion modules can attach to the
master module using a daisy-chain wiring scheme. The second expansion
module has its UP port connected to the preceding expansion module’s DN
port. The last expansion module will have a vacant UP port. The D+ terminal
on one device must attach to the D+ terminal on the other. The same applies
to the D– terminals. Bias and termination exists on the UP terminals. See
Figure 9 for wiring details. For short connections, unshielded cable can be used.
Expansion modules are automatically assigned Modbus addresses beginning
with 2 based upon its position to the master within the daisy-chain wiring.
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Modbus Serial Bus Connections
The Modbus serial expansion port (MB) on the BAS Remote Master module
is non-isolated EIA-485 compatible. When connecting to other non-isolated
devices, care must be exercised to ensure that all non-isolated Modbus devices
share the same ground reference (COM) with the BAS Remote Master
module. This is usually accomplished by sharing the same power source.
Configure the Modbus baudrate and protocol using the BAS Remote Modbus
port web page.
Figure 7 — Internal Termination and Bias
When connecting to an isolated 3-wire Modbus device, the signal common of
the isolated device must be connected to the SC pin between the MB and DN
ports. This ties the two reference points together for reliable communications.
Refer to Figure 9 for wiring details.
Modbus serial devices can only be attached to the MB port on the master
module. Refer to Figure 7 for details on the bias and termination network
present on the MB port. Together, these resistors approximate one 120 Ω
terminating resistor. Terminal D+ represents the more positive connection for
the EIA-485 Modbus serial network while D– represents the less positive
connection. Make corresponding connections to Modbus serial devices. The
last device on the bus should have applied bias and termination or just
termination. A shielded twisted-pair cable should be used with interconnecting devices. Connect the shields together and attached to chassis at
only one point. Refer to Figure 9 for wiring details.
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Function
Signalling &
Data Rate
Minimum Required
Cable
Maximum
Segment Distance
Ethernet
10BASE-T
10 Mbps
Category 3 UTP
100 m (328 ft)
Ethernet
100BASE-TX
100 Mbps
Category 5 UTP
100 m (328 ft)
I/O
Unspecified
18 AWG
Unspecified
Expansion
Unspecified
Belden® 9841 or equivalent
100 m (328 ft)
Modbus
2.4–115.2 kbps
Belden® 9841, 3106A, 9842
100 m (328 ft)
CABLING CONSIDERATIONS
When attaching cables to the BASR, Table 1 should be considered.
Table 1 — Cabling Considerations
NOTE: If using shielded cable, connect to chassis at only one point. Wire
size may be dictated by electrical codes for the area where the equipment is
being installed. Consult local regulations.
Observe in Table 1 that 10BASE-T segments can successfully use Category 3,
4 or 5 cable — however, 100BASE-TX segments must use Category 5 cable.
Category 5e cable is highly recommended as the minimum for new installations.
The Ethernet port of the BASR employs Auto-MDIX technology so that either
straight-through or crossover cables can be used to connect to the network.
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POWERING
The unit (except for the BASR-8M/P) requires 24 VDC or VAC from a
source via a three-pin removable keyed connector. The proper connections
for various power options are illustrated below.
NOTE: This device is intended for use with Class 2 circuits.
Figure 8 — Power Options
The recommended size for power conductors is 16–18 AWG (solid or
stranded). Ground is directly connected to zero volts. Input connections
are reverse-polarity protected.
An internal source provides 24 VDC (allowing a maximum current
draw of 150 mA) to power external transmitters connected as inputs to
the BASR — so a separate loop supply is unneeded.
WARNING: Powering devices can special present hazards. Read the
following text carefully.
Power Supply Precautions
Internally, the BASR utilizes a half-wave rectifier and therefore can
share the same AC power source with other half-wave rectified devices.
Sharing a common DC power source is also possible. Sharing AC
power with full-wave rectified devices is NOT recommended. Fullwave rectified devices usually require a dedicated AC power source
that has a secondary elevated above ground. Both secondary connections
are considered HOT. AC power sources that power several half-wave
devices have a common secondary connection called COMMON, LO,
or GROUND. This connection might be tied to earth. The other side
of the secondary is considered the HOT or HI side of the connection.
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Connect the HOT side of the secondary to the HI input on the BASR
and the LO side to COM on the BASR. All other half-wave devices
sharing the same AC power source need to follow the same convention.
When using a DC power source, connect the positive terminal of the
source to the HI input and the negative terminal to COM on the BASR.
Reversing polarity to the BASR will not damage the BASR.
WARNING: Devices powered from a common AC source could be
damaged if a mix of half-wave and full-wave rectified devices exist. If
you are not sure of the type of rectifier used by another device, do not
share the AC source with it.
Limited Power Sources
The BASR should be powered by a limited power source complying
with the requirements of the National Electric Code (NEC) article 725
or other international codes meeting the same intent of limiting the
amount of power of the source. Under NEC article 725, a Class 2
circuit is that portion of the wiring system between the load side of a
Class 2 power source and the connected equipment. For AC or DC
voltages up to 30 volts, the power rating of a Class 2 power source is
limited to 100 VA. The transformer or power supply complying with
the Class 2 rating must carry a corresponding listing from a regulatory
agency such as Underwriters Laboratories (UL).
INDICATOR LIGHTS
Status: During boot-up, this LED flashes green. Once all files are
loaded, it glows solid green to indicate the unit is operational. If a
problem exists, it will glow solid red.
Ethernet: This LED glows if a valid link exists to an operating
Ethernet device. It indicates speed by colour: green for 100 Mbps and
yellow for 10 Mbps. It flashes to indicate activity.
I/O: Each of these LEDs glows green when the associated I/O point is
in normal condition. Depending on the programmed function, some of
these LEDs will glow red to indicate abnormal conditions. Refer to the
User Manual for a complete explanation of these LEDs.
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FIELD CONNECTIONS
When attaching devices, observe proper cabling using Figure 9 as a guide.
Figure 9 — Sample Wiring Diagram
Wire Channels 1–6 so the most positive wire
goes to the ―A‖ terminal and the most negative
wire to the ―B‖ terminal.
The wiring options for Channels 1–6 are
shown in Figure 10. For each case in which
polarity matters, proper polarity is indicated.
Considerations in making field connections for
various types of input and output devices are
discussed in the following pages.
Figure 10 — I/O Options
(Channels 1–6)
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Thermistors
The BAS Remote has built-in calibration curves for 10 kΩ Type II or
Type III thermistors. These devices are non-linear with a negative
coefficient of resistance to temperature and provide a nominal resistance
of 10 kΩ at 25°C. Using the web server, configure an input for either
Type II or Type III thermistor. As shown in Figure 11, connect the
two-wire thermistor to points A and B. Polarity is not an issue. If
averaging of temperature is desired, connect multiple thermistors in a
series-parallel combination so that the nominal resistance remains at 10 kΩ
as shown. Make sure that all devices are of the same type. The effective
range of temperature measurement is from +40° to +110°F (+4.4° to
+44°C). An open input results in a fault condition that produces a red
LED indication for that channel.
Figure 11 — Thermistor Connections
Contact Closure
The BAS Remote can sense the make or break of a contact from a relay
or push-button. The contacts being sensed must be absent of any applied
source of energy, and be rated for low-voltage, low-current switching.
The BAS Remote will provide the electrical energy to be sensed. Using
the web server, configure an input for contact closure. As shown in
Figure 12, simply connect the contacts between points A and B. For
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common mechanical contacts, polarity is not an issue. The open-circuit
voltage is 24 VDC and the short-circuit current is 2 mA.
Figure 12 — Contact Closure Connections
For solid-state switches, there are further concerns. It is recommended that a
solid-state device have an opto-isolated open-collector NPN transistor output
stage with a collector-emitter output voltage (Vce) of at least 30 V. Output
sinking current should be greater than 5 mA. The collector-emitter saturation
voltage should be less than 0.2 V when sinking 2 mA. The emitter should be
connected to point B and the collector to point A which is the more positive
point. This polarity must be observed when using solid-state devices. When
an input is configured for a contact closure, the BAS Remote sets the lowthreshold to 2 V and the high-threshold to 3 V. When a contact is made or the
solid-state switch is on (resulting in a saturated output), the voltage at point A
is close to zero volts. The corresponding LED for that channel will be on. If
the contact is opened or the solid-state switch is turned off, the voltage at
point B will quickly begin to rise towards 24 V. Once the voltage passes the 3
V high-threshold, the input channel will sense the ―off‖ state. To return to the
―on‖ state, this voltage needs to return to 2 V. The one-volt difference is
called hysteresis. There is no need to add an external pull-up resistor when
using a contact closure input.
Contact closure inputs are sampled every 10 ms and for a change of state to be
recognized, the input state must be stable for two consecutive samples.
Therefore, contact closure response is from 20–30 ms.
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Pulse Inputs
A variation on contact closure inputs is pulse inputs. In this situation speed is
critical so the input filtering that limits the time response is removed. When
an input is configured for Pulse Input, a pulse rate up to 40 Hz can be
measured, assuming a 50% duty cycle. The pulse device could have an optoisolated open-collector NPN transistor output stage like the one identified
under Contact Closure, or it could provide an active sinusoidal output signal
that needs to be detected. Data is in the form of accumulated pulse count.
The Pulse Input voltage range is 0–10 VDC and the installer can set both the
low-threshold and high-threshold on the Pulse Input web page. The difference
in the two thresholds is the hysteresis. You can detect sinusoidal input signals
by setting the high threshold below the positive peak and the low threshold
above the negative peak. Setting the two thresholds well toward the centre of
the sinusoidal waveform (rather than near its peaks) offers some noise immunity.
It is not necessary for the input signal to swing from zero to 10 V. Any
substantial swing within this range can be detected. The input impedance
using Pulse Input is 100 kΩ. Connect the output of the pulse device to point A
and the common to BAS Remote common as shown in Figure 13.
Figure 13 — Pulse Input Connections
The pulse output could be sinusoidal with no DC offset so the BAS Remote
could experience both positive and negative excursions of the signal.
The BAS Remote can only detect positive voltages so the negative
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excursions will be ignored. It is still possible to detect the input signal
by only sensing the positive excursions.
When interfacing to a pulse device that has an opto-isolated open-collector
output, a pull-up resistor must be added to the device output. In Figure 13,
a 3-phase wattmeter has three opto-isolated open-collector outputs, each
requiring an external pull-up resistor. Since each of the opto-isolators
is rated for 60 VDC, install a 100 kΩ pull-up resistor between each
output and the +24 V loop supply. The common of the opto-isolators
connects to the common of the BAS Remote. Since each BAS Remote
input has a 100 kΩ input impedance, the resulting voltage divider sets
the off-state voltage to 12 V. Even though the BAS Remote input
range is 0–10 VDC, this will not harm it. Set the two thresholds to 2 V
and 3 V. The threshold points on digital signals are not critical.
Consult the pulse device manual for more guidance.
Analog Input
Either voltage in the range of 0–10 VDC or current in the range of 0–20
mA can be measured with an analog input. Transmitters that produce
an elevated ―zero‖ such as 2–10 VDC or 4–20 mA can be measured as
well. Using the web page, configure the input for either voltage or
current and select an appropriate range. Scaling the input is accomplished
by assigning the low and high points to engineering units. When set as
a voltage input, the input impedance is 100 kΩ and for a current input,
the impedance is 250 Ω.
With voltage measurement, connect the more positive voltage to point
A and the less positive to BAS Remote common as shown in Figure 14.
On three-wire devices such as damper actuators, the output signal is
referenced to the damper’s power supply common. That common must
be at the same reference as the BAS Remote common. Notice the
connections in the diagram. In this situation it is only necessary to
attach the transmitter output to point A on the BAS Remote input.
When measuring current, remember the BAS Remote sinks current to
ground. A 250 Ω impedance is effectively applied between points A
and B on the input. To measure current, it must be driven into point A
with respect to point B. For two-wire current transmitters, the more
positive point on the transmitter attaches to the +24 V on the BAS
Remote loop supply or it can attached to an external loop supply as long
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as that loop supply has a common connection with the BAS Remote.
The less positive connection is made to point A on the input.
Figure 14 — Analog Input Connections
Care should be exercised when connecting to a three-wire current
transmitter. These are usually non-isolated devices between the power
source and signal output. The BAS Remote will sink current from its
input to ground so the transmitter must source current from a positive
potential to ground. If the three-wire transmitter works in this manner,
it can be accommodated.
Four-wire transmitters usually have isolation between power supply and
signal output so their output stage can usually be treated as a two-wire
transmitter.
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Analog Output
Either voltage in the range of 0–10 VDC or current in the range of 0–20
mA can be outputted by assigning analog outputs. Configure an output
using a web page. Select the appropriate range. For DC voltage, the
output voltage is applied to point A with respect to common. For DC
current, the output current is sourced from point A to common so there
is no need for a loop supply. A current output can source up to 20 mA
into a resistive load not exceeding 750 Ω. Verify the burden that a
current output device will present. The BAS Remote can not generate
enough voltage to drive loads with higher resistance.
Figure 15 — Analog Output Connections
Figure 15 illustrates connections to a three-wire damper actuator. The
damper requires a 0–10 V command signal which can easily be
accomplished by the BAS Remote. However, if a current output is
desired it is possible to set the BAS Remote analog output to 4–20 mA
and install an external 500 Ω resistor that will convert the 4–20 mA
signal to 2–10 V.
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NEED MORE HELP INSTALLING THIS PRODUCT?
Additional information can be found in the technical documentation available
on our web site at www.ccontrols.com. When contacting one of our offices,
just ask for Technical Support.
WARRANTY
Contemporary Controls (CC) warrants its new product to the original purchaser for
two years from the product shipping date. Product returned to CC for repair is
warranted for one year from the date that the repaired product is shipped back to the
purchaser or for the remainder of the original warranty period, whichever is longer.
If a CC product fails to operate in compliance with its specification during the
warranty period, CC will, at its option, repair or replace the product at no charge.
The customer is, however, responsible for shipping the product; CC assumes no
responsibility for the product until it is received.
CC’s limited warranty covers products only as delivered and does not cover repair
of products that have been damaged by abuse, accident, disaster, misuse, or incorrect
installation. User modification may void the warranty if the product is damaged by
the modification, in which case this warranty does not cover repair or replacement.
This warranty in no way warrants suitability of the product for any specific
application. IN NO EVENT WILL CC BE LIABLE FOR ANY DAMAGES
INCLUDING LOST PROFITS, LOST SAVINGS, OR OTHER INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY
TO USE THE PRODUCT EVEN IF CC HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY ANY PARTY
OTHER THAN THE PURCHASER.
THE ABOVE WARRANTY IS IN LIEU OF ANY AND ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING
THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR
PURPOSE OR USE, TITLE AND NONINFRINGEMENT.
RETURNING PRODUCTS FOR REPAIR
Return the product to the location where it was purchased by following the
instructions at the URL below:
www.ccontrols.com/rma.htm
DECLARATION OF CONFORMITY
Information about the regulatory compliance of this product can be found at the
URL below:
www.ccontrols.com/compliance.htm
June 2011
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