examples of applications for the tds-700

P.1

Examples of Applicationsfor the tDS-700

Examples of Applicationsfor the tDS-700

Dec.22, 2010

P.2

Virtual COM Basis

Meter

PLC10/100 M

Ethernet

RS-485

VCOM6/7 VCOM6/7

Transparent

tDS-725

Command/Data/Modbus/Anything Command/Data/Modbus/Anything

Note:

1. In the virtual COM application, the command or data is being copied between the PC and tDS-700 module with no protocol convert. This allows most of the serial protocols can be used with the virtual COM.

2. The max. COM port number in a PC is up to COM256.

3. The COM port is configured and mapped by using the VxComm Utility.

4. For Modbus/TCP to Modbus RTU/ASCII gateway, please refer tGW-700 models.

Transparent (with no protocol convert)

MeterPLC

RS-485

P.3

Virtual COM Application

RFID Reader

Meter

NS-208PSEEthernet Switch with PoE

MeterPLC

MeterPLC

10/100 M

Ethernet

RS-232

RS-485

RS-485

RS-485

VCOM5

VCOM6

VCOM7

VCOM8

…

VCOM5

VCOM6

VCOM7

VCOM8

tDS-712

tDS-715

tDS-725

VxComm

Driver

PLC

P.4

Direct TCP Socket Connection

Meter

PLC10/100 M

Ethernet

RS-485

tDS-725

Send raw data via

TCP client socket.

Raw data

Note:

1. The serial ports of the tDS-700 can be also accessed via TCP socket connections. TCP port 10001 = COM1, TCP port 10002 = COM2, TCP port 10003 = COM3.

2. Users have to configure the baud rate and data format via web configuration first, else the serial ports may send garbage data.

Transparent (with no protocol convert)

MeterPLC

RS-485

Port 10001 (COM1)

Port 10002 (COM2)

P.5

Serial Port Pair-connection Basis

PLC 2 uses 115200 bps

tDS-715 uses 115200 bps


Serial Port Pair-connectionThrough the Ethernet

Port 1(RS-485)


Port 1(RS-485)

Note: 1. PLC 1 and PLC 2 can communicate with each other via the RS-485 port that

has pair-connection link through the Ethernet.

Virtual RS-485 bus through the pair-connection.

P.6

Pair-connection with Different Baud Rate





Port 1(RS-485)

PLC 1 uses 9600 bps

Port 1(RS-485)

Note: 1. PLC 1 and PLC 2 can use different baud rate and different data format at the same time

when using pair-connection. But please make sure that the tDS-700 has the same setting as local serial devices.

2. The pair-connection can be created by using same or different tDS-700 models.The pair-connection is working as port-to-port.

Virtual RS-485 bus through the pair-connection.

P.7

Virtual RS-485 Network (base on pair-connection)

PLC

Meter

RS-485

tDS-715

tDS-725

tDS-725Meter

tDS-725

tDS-735RS-485



Port 1

Port 2

Port 1

Port 2 (RS-485)

Port 1(RS-485)

Port 1

Port 1 (RS-485)

Port 2

Port 2 (RS-485)


PLC

Note: When connecting several tDS-700 (RS-485 master) in RS-485 network, you should remove the pull-high/low resister on the RS-485 port in most of the tDS-700 modules, and make sure there is only one master in the RS-485 network.

Port 3

examples of applications for the tds-700

Documents