PG-102-105-AC is highly powerful, superior, completely configurable and productive Building & Industrial Automation gateway for integrators to effortlessly interface devices to networks in commercial buildings and industrial plants.

PG-102-105-AC Gateway model supports BACnet MS/TP and LonWorks protocols. It is a Bi-directional Converter that can be configured as a Client and/or a Server on either protocol interface.

When configured as a LonWorks client, PG-102-105-AC can read data from your LonWorks devices and publish it as BACnet MS/TP data. Also, it can write commands sent from the BACnet MS/TP side to the LonWorks devices.

When configured as a BACnet MS/TP client, the PG-102-105-AC can read data from your BACnet MS/TP devices and publish it as LonWorks data. Also, it can write commands sent from the LonWorks side to the BACnet MS/TP devices.

PG-102-105-AC can be configured to behave as a server on both LonWorks and BACnet MS/TP interfaces. This mode is useful when data exchange is required between a  LonWorks client (for eg. SCADA) and a BACnet IP client (for eg. a Building Management System).

The PG-102-105-AC can be configured to behave as a client on both LonWorks and BACnet MS/TP interfaces.

PG-102-105-AC gateways have benefitted system integrators worldwide with its powerful line of gateways. Additionally, PG-102-105-AC gateway runs the same protocol conversion software on a productive and cost efficient platform backed by the experience, engineering expertise and technically proven support that integrators have come to expect from PG-102-105-AC.

Key Features

• Ability to interface up to 1000 points of common BAS protocols
• 1xLonWorks FTT10 port, 1xRS485 Port, 1xEthernet port
• BTL Mark – PG-10XX Series
• LonMark Certified – PG-10XX Series
• BACnet COV support for fast data communication while reducing traffic over a BACnet network
• Capacity of 1000 LonWorks network variables – almost 5 times more than competition – PG-10XX Series
• Multi-configuration capability; specific configurations selectable via DIP switches or software
• Flat panel mount standard, DIN rail mount option
• DIP switches to select baud rate or node ID on the fly

Scenario 1

• There are several Thermostats on the site which provide data output on LonWorks.
• The site has a BACnet MS/TP based Controller that needs the temperature data from the Thermostats.
• A direct exchange of data between Thermostats and Controller is not possible as the Thermostats provide the data output on LonWorks and Controller understands BACnet MS/TP only.

Solution

• The devices can directly communicate with each other only if they are on the same protocol. LonWorks and BACnet MS/TP are Serial Protocols. Hence, a converter is needed that will convert the data from BACnet MS/TP device to LonWorks and vice versa.
• PG-102-105-AC BACnet MS/TP to LonWorks is an excellent solution for this requirement. This helps the gateway in reading data from the Energy meters on LonWorks and it caches this data internally and then provides it on BACnet MS/TP when requested from the Controller.

Scenario 2

• There is a Chiller on the site which provides data output on BACnet MS/TP.
• The site has a PLC on LonWorks which needs the temperature, pressure, humidity etc on BACnet MS/TP.
• A direct exchange of data between a Chiller and PLC is not possible as a Chiller provide data output on BACnet MS/TP and PLC understands LonWorks only.

Solution

• The devices can directly communicate with each other only if they are on the same protocol. LonWorks and BACnet MS/TP are Serial Protocols. Hence, a converter is needed that will convert the data from BACnet MS/TP device to LonWorks and vice versa.
• PG-102-105-AC BACnet MS/TP to LonWorks is an excellent solution for this requirement. This helps the gateway in reading data from the Chiller on BACnet MS/TP and it caches this data internally and then provides it on LonWorks when requested from the PLC.

LonWorks

LonWorks (local operation network) is a networking platform specifically created to address the needs of control applications. This platform is created for networking devices over media such as twisted pair, power lines, fiber optics, and RF. It is used for the automation of various functions within buildings such as lighting and HVAC see building automation.

There are two physical-layer signaling technologies, twisted pair “free topology” and power line carrier, are typically included in each of the standards created around the LonWorks technology. The two-wire layer operates at 78 Kbit/s using differential Manchester encoding, while the power line achieves either 5.4 or 3.6 Kbit/s, depending on frequency.

Additionally, the LonWorks platform uses an affiliated Internet protocol (IP) tunneling standard in use by a number of manufacturers to connect the devices on previously deployed and new LonWorks platform-based networks to IP-aware applications or remote network-management tools. Many LonWorks platform-based control applications are being implemented with some sort of IP integration, either at the UI/application level or in the controls infrastructure.

BACnet MSTP

BACnet MS/TP is exclusive to BACnet and can be implemented using the EIA-485 signaling standard. This is a shielded twisted-pair (STP) LAN operating at speeds from 9.6Kbit/s to 76.0Kbit/s. This LAN type is particularly suitable for single controller and low cost communications.

Like the Control and Information Protocol (CIP) used in industrial application, BACnet uses objects to represent data on a network. Objects defined by the BACnet specification include Analog Input, Analog Output, Analog Value, Binary Input, Binary Output, Binary Value, Multi-State Input, Multi-State Output, Calendar, Event-Enrollment Program, Schedule, Command, and Device.

The BACnet protocol is a completely non-proprietary open communication software standard. The standard is now controlled by the ANSI (American National Standards Institute) and ASHRAE (American Society of Heating Refrigeration and Air-Conditioning Engineers) Standard 135- 1995. In June of 1995, ASHRAE adopted BACnet as a standard for the Building Automation industry.

• We will configure the gateway for you based on your requirement and support you during commissioning of the gateway, so you do not have to worry about configuring the PG-102-105-AC gateway.
• However, it is very helpful to know how to configure the devices. All the required tools and supporting product manuals with be provided completely free of cost with your purchase.
• Configuration of the PG-102-105-AC is done using a ‘.csv’ file. This file can be edited using any text editor (example Microsoft excel).
• In this file we need to enter information for the Client and Server side interfaces of the PG-102-105-AC. This includes but is not limited to

1. Node ids of the slave devices
2. IP addresses/device address of the slave devices
3. Baud rate, parity, stop bits for serial communication
4. Scan rates

• And finally we need to create an internal mapping that would map each data value read on the client side to a data value on the server side.
• For detailed information on configuration please get in touch with us and review the configuration manual on top of this page.