ICPDAS GW-2139M User Manual

User Manual

Version 1.0.0 February 2019

GW-2139M

(BACnet MS/TP to Modbus TCP Gateway)

Written by Ives Shen

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：2

Table of Contents

1. General Information ............................................................................................................ 4

1.1 BACnet MS/TP Introduction ............................................................................................ 4

1.2 Modbus TCP Introduction ............................................................................................... 4

1.3 About GW-2139M ................................................................ ................................ ........... 5

1.4 Features .......................................................................................................................... 6

1.5 Specifications .................................................................................................................. 7

2. Hardware .............................................................................................................................. 8

2.1 Size (Unit : mm) .............................................................................................................. 8

2.2 Appearance ..................................................................................................................... 9

2.3 LED Indicator ................................................................................................................ 10

3. Getting Started With GW-2139M ....................................................................................... 11

3.1 Wiring Preparation ........................................................................................................ 11

3.2 GW-2139M Utility ................................................................ ................................ .......... 12

3.3 How to update the firmware .......................................................................................... 16

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：3

Important Information

Warranty

All products manufactured by ICP DAS are under warranty regarding defective materials for a period of one year, beginning from the date of delivery to the original purchaser.

Warning

ICP DAS assumes no liability for any damage resulting from the use of this product.ICP DAS reserves the right to change this manual at any time without notice. The information furnished by ICP DAS is believed to be accurate and reliable. However, no responsibility is assumed by ICP DAS for its use, not for any infringements of patents or other rights of third parties resulting from its use.

Copyright

Copyright @ 2018 by ICP DAS Co., Ltd. All rights are reserved.

Trademark

Names are used for identification purpose only and may be registered trademarks of their respective companies.

Contact us

If you encounter any problems while operating this device, feel free to contact us via mail at: service@icpdas.com . We guarantee to respond within 2 working days.

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：4

1. General Information

1.1 BACnet MS/TP Introduction

BACnet is a data communications protocol for Building Automation and Control Networks.

BACnet Master Slave Token Passing (MS/TP) protocol is used to relay and exchange

information between building devices. BACnet MS/TP is a based on BACnet standard protocol

SSPC-135, Clause 9. BACnet MS/TP is a peer-to-peer, multiple master protocol based on token

passing. A token is information packets in the form of a pulse signal that is passed between

devices on a network. 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

9600 bit/s to 76800 Kbit/s. This LAN type is particularly suitable for single controller and low cost

communications.

1.2 Modbus TCP Introduction

MODBUS/TCP is a variant of the MODBUS family of simple, vendor-neutral communication

protocols intended for supervision and control of automation equipment. Specifically, it covers the

use of MODBUS messaging in an “Intranet” or “Internet” environment using the TCP/IP protocols.

The most common use of the protocols at this time are for Ethernet attachment of PLC’s, I/O

modules, and gateways to other simple field buses or I/O networks.

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1.3 About GW-2139M

GW-2139M is a network gateway allowing Modbus TCP client devices to be accessed

BACnet MS/TP network as a BACnet MS/TP master. The BACnet Master Slave Token Passing

(MS/TP) protocol is used to relay and exchange information between building devices.

GW-2139M contains a large number of BACnet objects (AI, AO, AV, BI, BO, BV, MSI, MSO, MSV)

gives you flexibility in mapping Modbus TCP registers to any combination of BACnet objects.

BACnet interoperability building blocks (DS-RP-A, DS-RPM-A, DS-WP-A, DS-WPM-A,

DM-DDB-A, DM-DOB-A, DM-DCC-A, DM-RD-A) are Supported. All the data transfer is

configurable using ICPDAS Utility.

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：6

1.4 Features

Read/Write standard BACnet objects via Modbus Configurable BACnet MS/TP master Configurable Modbus TCP server Simple data translation allows you to manipulate data Supports BACne AI, AO, AV, BI, BO, BV, MSI, MSO, MSV Object Types Supports Modbus DI, DO, AO, AI Types BACnet object properties mapping configured via Modbus register Isolated COM : RS-485 Provide LED indicators Built-in Watchdog 4KV ESD Protection

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：7

1.5 Specifications

Ethernet

Controller

10/100Base-TX Ethernet Controller (Auto-negotiating, Auto_MDIX)

Connector

RJ-45 with Ethernet indictor

Protocol

Modbus TCP Server

Max. Connections

8

RS-485 Interface

Connector

terminal block (D+, D-)

Baud Rate (bps)

9600, 19200, 38400, 57600, 76800

Comm. format

N, 8, 1

Terminator Resistor

Built-in 120 ohm terminator resistor, enabled/disabled via Jump

Isolation

3 kV VDC for DC to DC, 2500 Vrms for photo couple

Protocol

BACnet MS/TP Master

Maximum

Connections

32

BACnet Objects

AI, AO, AV, BI, BO, BV, MSI, MSO, MSV

BIBBs

DS-RP-A, DS-RPM-A, DS-WP-A, DS-WPM-A, DM-DDB-A, DM-DOB-A, DM-D CC-A, DM-RD-A

Power

Protection

Power reverse polarity protection

EMS Protection

ESD, Surge, EFT

Supply Voltage

+10 VDC ~ +30 VDC

Consumption

5 W @ 24 VDC

LED Indicator

LED (Round)

Power (1), BACnet MS/TP Status (1), BACnet MS/TP Net(1), Modbus TCP TxD / RxD / Link (3)

Ethernet LED

Ethernet LED Ethernet Status (RJ-45) (2)

Mechanism

Installation

DIN-Rail

Casing

Metal

Dimensions

33 x 120 x 116 mm (W x L x H)

Environment

Operating Temp.

-25℃ ~ +75℃

Storage Temp.

-30℃ ~ +85℃

Humidity

10 ~ 90% RH, non-condensing

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2. Hardware

2.1 Size (Unit : mm)

Top view

Right view

Front view

Bottom view

Post view

Left view

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：9

2.2 Appearance

LED Indicator

Ethernet Port

Terminal Block

The GW-2139M is equipped with a RJ45 port for

Ethernet LAN connection. When 100BASE‐TX is

operating, the 10/100M LED is lit orange. When

10BASE‐T is operating or the machine is not connected

to the network, it is turned off. When an Ethernet link is

detected and an Ethernet packet is received, the

Link/Act LED is lit green.

RS-232

RS-485

Pow

RS-485

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：10

2.3 LED Indicator

There are six LEDs to indicate the various states of the GW-2139M. The following is the

illustration of these six LEDs.

Figure 2.1 LED position of the GW-2139M

LED Name

GW-2139M Status

LED Status

ALL LEDs

FW Updating Mode

LED will be twinkled sequentially.

PWR (Module)

Power On

On

Power Failure

Off

NET (MSTP) Connect at least one device

On

No devices are connected

Blink per 200 ms

STA (MSTP) Connect all device

On

Some devices are not connected

Blink per 200 ms

CNT (Modbus)

Connected by least one client.

On No clients connect

Blink per 200 ms

RxD (Modbus)

Data reception

On

No Data reception

Off

TxD (Modbus)

Data transmission

On

No Data reception

Off

Table 2.1 LED indication of the GW-2139M

STA

NET

PWR

TxD

RxD

CNT

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3. Getting Started With GW-2139M

This chapter mainly describes the operation process of the GW-2139M.

3.1 Wiring Preparation

Before setting up the GW-2139M, please complete the necessary preparation about wiring.

Please follow Figure 2.1 wiring diagram, to wire the following items:

1. Power Supply : +10 VDC ~ +30 VDC

2. RS-485：D+ & D- (MSTP wiring)

3. RS-232：TxD / RxD / GND (Debug Port ; N, 8, 1 ; 115200 baud rate)

4. Ethernet：Connect the GW-2139M and computer into the same LAN through cable or

Ethernet Switch/Hub.

5. INIT：Connect to GND to initial mode. (Address IP:192.168.255.1)

6. FW：Connect to GND and insert RJ45 to download mode. (LED will be twinkled.)

Figure 3.1 GW-2139M Wiring Diagram

RS-485

F.G.

P.GND

PWR

D-

GND

RxD

RS-232

Power

Supply

L

1

INIT

D+

FW

TxD

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：12

3.2 GW-2139M Utility

Please change the GW-2139M to initial mode and follow the following steps to set up the

communication between the utility and the GW-2139M.

Step0：

Power off the GW-2139M.

Step1：

Pin INIT Connect to GND and Power on to initial mode.

Step2：

Open Utiltity and click Start.

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Step3：

Set the module network parameter.

Step4：

Select the DO, DI, AO or AI page and edit the mapping table.

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：14

Step5：

Add the one item to mapping table of the page.

Step6：

Delete the one item from mapping table of the page.

1 2 1 2 3

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：15

Step7：

Delete all items from mapping table of the page.

Step8：

Write/Read the all configuration to the module.

Step9：

Please power off and remove GND from INIT Pin. Then power on to normal mode.

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：16

3.3 How to update the firmware

GW-2139M can update the firmware via a software tool (Windows) by the following:

1) Download the latest version of the firmware program and update Tool (FW_Update_Tool) on

the GW-2139M product page and store it in a computer that you want to connect to GW-2139M.

- Update Tool: Please refers to ->

http://www.icpdas.com/root/product/solutions/industrial_communication/fieldbus/bacnet_

ip/gateway/gw-2139m.html.

2) Short the FW with P.GND of GW-2139M and turn on the power. When the six LEDs of

GW-2139M turn blinking alternately, the GW-2139M is successfully entered the firmware

updating mode.

Figure 3.2 GW-2139M FW & P.GND Pin

F.G.

P.GND

PWR

D-

GND

RxD

TxD

L

1

INIT

D+

FW

GW-2139M (Modbus TCP to BACnet MS/TP Gateway) User Manual Version 1.0.0 Page：17

3) Execute “FW_Update_Tool.exe” with the administrator privileges ( ) and follow the steps as

Figure 3.3:

In "Download Interface", select a network port for connecting to GW-2139M

In "Firmware Path", select the latest firmware update file (GW2139M_xxxx.fw).

In "Firmware Update", click “Update” to start the firmware updating.

4) When the update is completed, “Update OK” will be displayed in the “FW_Update_Tool”

window to indicate that the firmware updating is successful. Next, remove the short connection

between FW and P.GND, and reboot the power supply, then check the current firmware version

on the Web interface.

Figure 3.3 FW_Update_Tool firmware update steps

ICPDAS GW-2139M User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual