Contemporary Control Systems BASrouter User Manual

BASRTP-B

Portable

BACnet® Multi-Network Router

Installation Guide

TD070210-0IG

For Firmware Versions 2.6.x

Trademarks

Contemporary Controls, ARC Control, ARC DETECT, EXTEND-A-BUS,
RapidRing, and CTRLink are trademarks or registered trademarks of
Contemporary Control Systems, Inc. Specifications are subject to change
without notice. Other product names may be trademarks or registered
trademarks of their respective companies. BACnet is a registered trademark
of the American Society of Heating, Refrigeration, and Air-Conditioning
Engineers, Inc. (ASHRAE).

TD070210-0IG 27 March 2013

Copyright

© Copyright 2013 by Contemporary Control Systems, Inc. All rights
reserved. No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual, or otherwise, without the prior
written permission of:

Contemporary Control Systems, Inc.

2431 Curtiss Street
Downers Grove, Illinois 60515 USA
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.ccontrols.com

Contemporary Controls Ltd

14 Bow Court, Fletchworth Gate
Coventry CV5 6SP UK
Tel: [phone]
Fax: [phone]
E-mail [e-mail]
Web: www.ccontrols.co.uk

Contemporary Controls (Suzhou) Co. Ltd

11 Huoju Road, Science & Technology Park
New District, Suzhou, PR China 215009
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.ccontrols.com.cn

Contemporary Controls GmbH

Fuggerstraße 1 B
04158 Leipzig, Germany
Tel: [phone]
Fax: [phone]
E-mail [e-mail]
Web: www.ccontrols.de

Disclaimer

Contemporary Control Systems, Inc. reserves the right to make changes
in the specifications of the product described within this manual at any
time without notice and without obligation of Contemporary Control
Systems, Inc. to notify any person of such revision or change.

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Contents

1 Introduction ..................................................................... 4

2 Specifications .................................................................. 5

Electrical ......................................................................... 5

Environmental ................................................................. 5

Functional ....................................................................... 5

Electromagnetic Compatibility ....................................... 5

Connectors ...................................................................... 6

Mechanical ...................................................................... 6

3 Power .............................................................................. 7

4 Operation ........................................................................ 9

MS/TP Port ..................................................................... 9

Ethernet Port ................................................................... 9

IP Address Reset Switch ................................................. 9

LEDS .............................................................................. 9

5 Webpage Configuration ................................................ 10

Device Parameter .......................................................... 13

BACnet Ethernet ........................................................... 13

BACnet/IP Parameters .................................................. 14

MS/TP Parameters ........................................................ 15

Status Screen ................................................................. 16

6 Warranty ....................................................................... 18

Returning Products for Repair ...................................... 18

7 Declaration of Conformity ............................................ 18

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1 Introduction

The BASRTP-B is a multi-network router, sharing messages among
BACnet/IP, BACnet Ethernet and MS/TP networks. The router is
configurable via its internal webpage. The unit attaches to a USB port of
your computer and has one isolated MS/TP port and one 10/100 Mbps
Ethernet Auto-MDIX port.

The MS/TP port offers a 3-pin terminal block with a removable plug for
the EIA-485 connection. Through this port, up to 254 devices can be
addressed — as many as 31 full-load devices on the attached segment.
All MS/TP baud rates (as stated in the BACnet standard) are supported.

The Ethernet port offers a shielded RJ-45 connector. Through auto­negotiation and Auto-MDIX, it automatically matches its duplex setting,
data rate and signal polarity to whatever is needed by the attached
equipment. Thus, only a straight-through CAT5 cable is needed for
hook-up.

The USB port is strictly used to power the BASRTP-B. No
communications is supported via the USB port.

The BASRTP-B features a user-accessible switch to reset the IP address,
subnet mask and gateway address to the factory defaults.

Three LEDs are present: A power LED glows green when proper power
is provided. The Ethernet LED glows green for 100 Mbps operation and
yellow for 10 Mbps and flashes to indicate activity. A green LED flashes
when MS/TP traffic is received.

Each unit complies with Class A radiated and conducted emissions as
defined by EN55022 and CFR 47, Part 15, and is intended for use in non­residential areas.

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2 Specifications

Electrical

INPUT USB (Type B Port)
Voltage
Current
Power:

Environmental

Operating temperature: 0°C to 60°C
Storage temperature:
Relative humidity:

Functional

Ethernet MS/TP

Signalling:

100BASE-TX

Cable length limit: 100 m 1200 m (for AWG 18)

(V, nominal): 5 VDC

(mA, typical): 300

2.5 W

–40°C to +85°C
10–95%, non-condensing

10BASE-T EIA-485

(ANSI/ASHRAE 135-2008)

MS/TP Baud rate (bps):

MS/TP node limit:

9600, 19200, 38400, 76800

254 devices total

31 full-load devices per segment

MS/TP LED:

Ethernet LED:

yellow = 10 Mbps
flashing = activity

flashing green = receive valid activity

green = 100 Mbps

Regulatory Compliance

CE Mark; RoHS; CFR47, Part 15 Class A

Electromagnetic Compatibility

Each unit complies with Class A radiated and conducted emissions as
defined by EN55022 and CFR 47, Part 15. This equipment is intended
for use in non-residential areas.

Warning This is a Class A product as defined in EN55022. In a domestic
environment this product may cause radio interference in which case the user
may be required to take adequate measures.

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Connectors

Figure 3 — RJ-45 Connector

Figure 1 — 3-pin Connector

Figure 2 — RJ-11 Connector

3-pin (MS/TP) Pin Assignments

(Also explained on product label)

RJ-11 (MS/TP) Pin Assignments

2 RT –
4 SC
5 RT +

(All other pins are unused.)

RJ-45 (MDI Ethernet) Pin Assignments

1 TD + 3 RD +
2 TD – 6 RD –

(All other pins are unused.)

Mechanical

Figure 4 — Product Dimensions

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3 Power

The BASRTP-B features a USB 2.0 Full Speed Device Port that accepts
the USB cable with Type B plug that is included in the box. It takes 5
VDC from a host computer, while typically drawing 300 mA of current.
It can operate from a USB hub, if desired, and no driver installation is
needed.

For MS/TP devices, see Figure 5 for proper 2-wire bus connections and
Figure 6 for proper 3-wire bus connections. The BASRTP-B does not
apply any failsafe bias or termination.

Figure 5 — 2-wire MS/TP Bus Wiring

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Figure 6 — 3-wire MS/TP Bus Wiring

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4 Operation

Figure 7 — Reset Switch

MS/TP Port

The MS/TP port uses an isolated EIA-485 transceiver that is connected
to both a removable 3-pin connector (Figure 1) and an RJ-11 jack. Either
connector can be used for the MS/TP line. The EIA-485 transceiver’s +
and – lines tie to + and – pins of both connectors. The SC pin ties to the
circuit ground of the EIA-485 transceiver and is isolated from both the
USB and Ethernet ports. You MUST connect the SC pin to the MS/TP
segment signal common — or MS/TP communication will fail!

The router can access 254 MS/TP devices and supports 31 devices on the
local bus at rates of 9600, 19200, 38400, or 76800 bps.

Ethernet Port

This port offers a shielded RJ-45 connector. Through auto-negotiation
and Auto-MDIX, it automatically matches its duplex setting, flow
control, data rate and signal polarity to whatever is needed by the attached
equipment. Thus, the provided CAT5 cable is the only cable needed for the
Ethernet hook-up.

IP Address Reset Switch

When pressed for at least 1 second (at any
time the router is under power), this switch
will reset the default values of the IP
address (192.168.92.68), gateway address
(192.168.92.1) and netmask (24). It is
accessed by a paper clip (or similar
device) via a small hole in the case — then after reboot, the default values
apply.

LEDS

Power glows green if power supplied to the unit is proper

Ethernet glows solid for a valid link (green for 100 Mbps or yellow

for 10 Mbps) and flashes to show activity

MS/TP flashes green when receiving valid MS/TP traffic

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5 Webpage Configuration

Each router contains an interactive web server, accessible from any
Internet-compatible PC on the local network and compatible with recent
versions of Internet Explorer (5.0 or later, suggested) or Netscape
Navigator (7.1 or later, required). It is factory-programmed with a
default IP address of 192.168.92.68 and a Class C subnet mask of

255.255.255.0 (/24).

Figure 8 shows the setup for accessing the MS/TP network using the
BASRTP-B, a computer for configuration, and a connection to the
MS/TP network. Make sure that a USB cable connects between the PC
and the BASRTP-B so it can be powered.

To configure the router, attach it to a computer with an Ethernet
connection and a standard web browser. For initial configuration, the PC
chosen for the procedure should temporarily have its IP address modified
as illustrated in Figure 9 — which employs a Windows

The example in Figure 9 suggests an IP address for the PC of

192.168.92.69, but the final quad of the address could be any value from
3 to 254 — except for 68 which is used by the router. After the IP
address of the PC has been set to the same subnet as the router, a browser
can access the router via its default IP address.

®

XP example.

Figure 8 — Setup for Initial IP Address Configuration

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On some systems, this
option is
“My Network Places”.

:

Figure 9 — Steps for Changing the IP Address of the PC Used for Setup

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After entering the router’s IP address into your browser’s address field, you
will see the Router Configuration Page with the default values as shown in
Figure 10 — using a web browser.

Figure 10 — Router Configuration Page with Default Values

Each parameter of the configuration is explained on the following pages.
When save changes is selected, the parameters are stored to non-volatile
memory and you are prompted to recycle power to the unit.

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Device Parameter

Device Name (Default Value = BASRTP-Bxxxxxx)

The BASrouter’s Device Object Name can be configured in this field. It
is required to be unique throughout the BACnet network. It can be up to
20 characters and defaults to a unique name of the form BASRTP­BXXXXXX — where the Xs are replaced with the final six characters of
the router’s Ethernet MAC address.

Device Instance

The router’s device instance is a 22-bit value (0–4,194,302). Do not use
4,194,303 which is reserved by BACnet. Each BACnet device within the
same BACnet internetwork must have a unique device instance. One
must be assigned to the BASRTP-B.

(Default Value = 0)

BACnet Ethernet (0 disables BACnet Ethernet)

Ethernet Network (Default Value = 0)

Most BACnet communication that is carried by Ethernet uses the
BACnet/IP protocol. However, there are still instances in which the
older BACnet Ethernet protocol (ISO 8802-3) is found. The BASRTP-B
allows these two protocols to communicate.

BACnet Ethernet uses Ethernet MAC addresses for station addressing —
unlike BACnet/IP which addresses messages by means of Internet

Protocol (IP) addresses. Each Ethernet MAC address (often called the
physical address) is unique to the Ethernet network adapter. It is

permanently embedded into the adapter during manufacture and cannot
be changed. It is composed of six two-digit hexadecimal numbers (00–
FF). An example of an Ethernet MAC address is:

00-08-A1-10-BD-EB

Each Ethernet network adapter has the ability to store an IP address that
is changeable. This IP address is typically represented as four decimal
values (each is 0–255) separated by dots. Often called the dotted quad
format, an example is:

192.168.92.1

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NOTE: Although they may share the same Ethernet physical network,
BACnet Ethernet devices and BACnet/IP devices must have their own
unique network number and these two networks cannot communicate
unless their messages pass through a router. These network numbers
must be in the range of 1–65534 (0 and 65535 are reserved). If the
BACnet Ethernet network value is left at its default value of 0, the
BACnet Ethernet function within the BASRTP-B will be disabled. To
prevent message loops, a subnet must have only one router enabled for
BACnet Ethernet.

BACnet/IP Parameters

BACnet/IP UDP Port (Default Value = 0xBAC0)

This 16-bit hex value (BAC0–BACF) is set to BAC0 by default.
Usually, this default value should not be changed. In a typical
installation, each BASRTP-B will be assigned the same UDP port.

BACnet/IP Network

(Default Value = 1)

The BACnet/IP network number is a 16-bit value (1–65534). Each
network within the BACnet internetwork must have a unique number.
This includes the BACnet/IP and MS/TP sides of the BASRTP-B. Do
not use addresses 0 or 65535 since these addresses are reserved.

IP Address

(Default Value = 192.168.92.68)

The IP address of the router can be 0.0.0.1–255.255.255.254. A private
address is usually assigned to the BASRTP-B.

IP Subnet

(Default Value = 24)

This value (0–30 in the “slash” notation) is the number of bits with a “1”
in the mask. The default value of 24 corresponds to 255.255.255.0 in the
dotted decimal format. All devices on the same subnet which
communicate via BACnet/IP should use the same subnet mask.

IP Gateway

(Default Value = 192.168.92.1)

The default gateway for the IP stack is a dotted decimal number in the
range of 0.0.0.0–255.255.255.254. This will be the IP address of your
local IP router — if one exists.

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MS/TP Parameters

MS/TP MAC (Default Value = 00)

This is the 8-bit (0–127) MAC address of the router’s MS/TP port, in
decimal. Lower MAC address numbers are preferred with the default
recommended. It is further recommended that all other BACnet devices
attached to the same MS/TP network be assigned consecutive MAC addresses
beginning with 1 without allowing any gaps in addressing. Slave devices may
have MAC addresses of 128–254, but MAC address 255 is reserved.

MS/TP Network

(Default Value = 2001)

This 16-bit decimal network number (1–65534) must be unique for all
BACnet networks within the BACnet internetwork. No other networks,
regardless of type, can have the same network number. Do not use
addresses 0 or 65535 since these addresses are reserved.

Max Masters

(Default Value = 127)

Only master nodes participate in the MS/TP token-passing process. The
highest master MAC address (in decimal) in the MS/TP network is 127
and you should use 127 if you are unsure of other MS/TP device
addresses. Each MS/TP device should use this same value. For a value
in this field to be proper, it must equal or exceed the highest MAC
address for any master on the network. Optimum performance occurs
when this value:

1. equals the highest MAC address of any master, and

2. all masters use sequential MAC addresses

Since many BACnet devices do not allow this parameter to be changed,
leave the BASRTP-B at the default value.

Max Info Frames

(Default Value = 40)

This is the maximum number of messages that can be routed onto the
MS/TP network by the router per token pass. Its range is 1–100, and
typical values are 20–40. Smaller values provide less access to the
MS/TP network from the BACnet/IP network because they give native
MS/TP messages higher priority than those passed by the router from
BACnet/IP. The default value usually provides good performance.

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MS/TP Baud Rate (Default Value = 9600)

Figure 11 — Status Screen

The baud rate of the MS/TP network can be 9600, 19200, 38400 or
76800 bps. All MS/TP devices on the same MS/TP network must use
the same baud rate. On power up the router checks for other masters; if
finding none, it begins token passing — at which point autobauding
devices will adjust to the router’s baud rate.

MS/TP Tolerance

This setting determines the degree to which interoperability with devices
is successful. The Lenient option is less efficient for traffic flow but
optimises interoperability. A slight improvement in performance will be
realised by selecting the Strict setting.

(Default Selection = Strict)

Status Screen

The Status Screen depicted in Figure 11
reports the traffic of the various
protocols handled by the BASRTP-B
including the number of messages
transmitted and received for each
network. Packet counts only increment
for protocols in use. “BIP 1” is the
primary BACnet/IP port and “BIP 2” is
the secondary port.

After the packet counts, Figure 11
displays the instantaneous state of some
router MS/TP values. These are
documented in the MS/TP portion of the
BACnet standard — with the following
parameters being noteworthy:

“RFSM” is the current Receive Frame
State Machine state.

“MNSM” is the current Master Node
State Machine state.

“Next Station” is the MS/TP MAC address of the device to which the
router will next pass the token. This value may change if devices leave
or enter the network — and when the router searches for devices on the
network, as per the BACnet MS/TP standard.

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The Status Screen refreshes automatically — so you can watch the router
MS/TP state change and gain insight into the condition of the MS/TP
network (as seen by the router). For example, if “MNSM” always
reports SoleMaster or PollForMaster, after repeated refreshes, then the
router cannot communicate with any MS/TP devices.

“Available Memory” is the amount of RAM remaining after buffers are
allocated. If one network is temporarily offline and another network is
attempting to communicate with this network, the available memory may
drop very low until the offline network returns to an online condition.

“TX PFM Count” is the number of Polls For Master transmitted

“RX PFM Count” is the number of Poll For Master received.

“TX Token Count” is the number of tokens transmitted.

“RX Token Count” is the number of tokens received.

“Invalid Long Frames” is the number of frames received that have a
length exceeding 1024.

“Clear Silence Timer” is the number of times the Silence resets because
its value is too large.

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6 Warranty

Contemporary Controls (CC) warrants this 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 the repaired product is shipped back to the
purchaser or for the remainder of the original warranty period, whichever is longer.

If the 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

7 Declaration of Conformity

Information about the regulatory compliance of this product is at the URL below:

www.ccontrols.com/compliance.htm

March 2013

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