Siemens S7-200PLC Bluetooth communication suite manuals

    Bluetooth is a short-range wireless communication technologies, working in 2.4 GHz of the ISM band, the band Green free band of the genus, use the band the radio resource management departments to apply for license. Bluetooth has adopted a frequency hopping spread spectrum in the way, have good shielding, entered industrial control areas, more and more applications in industrial automation, distributed data acquisition, intelligent transport, electricity, hydraulics, and many other industries, industrial control interface implemented as RS232/RS485/RS422 transparent wireless transmission of signals.

          Siemens S7-200 series PLC Bluetooth communication suite FS-BT-PPI (FS is a registered trademark of the FourStar electronic FOURSTAR ), it is  FourStar electronic research's industrial-grade Bluetooth serial port adapter, the implementation of the computer or a touch screen devices of RS232 interface or USB interface to Siemens S7-200 series PLC of RS485 estuary of Bluetooth wireless data communications, you can replace the traditional programming-communications interface cable such as PC/PPI 、 USB/PPI etc., Do not need alteration original serial communication protocol and a variety of programming software, monitoring software, etc., do not need to settings, Plug and play is very convenient, especially suitable for use in the following occasions:

★ move or rotate serial communication between devices;

★ in the opposite, opposite the river or highway or railway or communication between devices;

★ other submarine cables all inconvenient for communication between the devices;

Product characteristics and key technical indicators

● Bluetooth band:2.40GHz —2.48GHz, ISM band

● Bluetooth protocol: Bluetooth v1.2

● power ratings:Class1 (+ 20dBm)

●    received sensitivity: 85dBm

● Bluetooth communication distance: 300 m (broaden), after the high-gain antennas on matching up to 800 m (broaden)

● Power supply voltage: The respectively by the PLC communication and USB of the port itself 5VDC supply, you can add + 9 ~ power 40VDC

● Communication rate: 2.4Kbps ~115.2Kbps , for standard baud rate

●    UART serial format: Data bits: 8 bits, the parity bit: even, stop bits: 1

● PPI support and free-port communication, does not support advanced and PPI multi-master station agreement in the PPI

● Interface protection: The powers port: the pole connects an anti- protection, lead to flow protection, 500W lightning surge protection

RS485 ports: 500W lightning and surge protection, over current protection

RS232 ports surge protection, USB port surge protection

●Work temperature:-40~+85 ℃ , relative humidity: 0~95% (not congealed)

Shape size: 90 × 78 × 24(long × breadth × high) wall hang type aluminum hulls

Heavy    Measure: 150 g

Product shape structure

       A FS-BT-PPI Composed by two, a connection to PC or touch screen interface of RS232 or USB, another connection S7-200 series PLC of RS485 interface (programming port), manufactured pairing set up with good right FS-BT-PPI enclosure stamped with the same sequence number. Can only be arranged on the second FS-BT-PPI only chain of communication between the ability to build, a different pair modules cannot be mixed, the parties on the impact of communication and distrust, just like the car's remote control keys can only be opened and its automobile the same.

       In order to tell and narrative convenience, we put the connection to the computer's FS-BT-PPI called “Master module”, connections PLC的 FS-BT-PPI called “Slave module”


Antenna this product is labeled 2.4 GHz, 3dB antenna, to enhance communication in distance, optional 9dB 、 13dB 、 24dB , etc., high-gain antennas, communication distance may consult the antenna vendor.

           The following table is FourStar electronic use different gain antenna measured distance from the Bluetooth communication:

Antenna specifications

Bluetooth maximum distance, spacious zones of communication)

2.4 G, 3dB Rod antenna (standard)


2.4 G, 9dB Rod antenna


2.4 G, 9dB antenna


Need to note is that data in a table is in open zone environment measured, in the Interior and the barrier of circumstances, the Bluetooth communication range has a larger decrease, the actual situation is complex, can only be measured according to a live environment.

Actual application should reduce barrier, maximize pairing two Bluetooth module mutual “can see” visible. as possible, do not use the product is installed on a metal cabinet avoid signal is shielded, free cable FS-BT-PPI tends to lead to be installed in the Cabinet, or with an antenna will antenna tends to lead to the Cabinet.


Indicator lightThe product palette with four LED indicators, the status of its work as follows:

Indicator light

Flashing on



link (blue)

Build chain

The chain is not built

Parameter sets the mode

PWR (red)

Power the normal


Fault or not power-on

TXD (yellow)

Failure or signal polarity reversed

Transfer data

Fault or not power-on

RXD (green)

Failure or signal polarity reversed

Transfer data

Fault or not power-on


The master module of RS232 socketRS232 socket for the standard DB9M (PIN), its signal is defined as follows:

RS232 socket (DB9M PIN) signal definition

PIN numbers

Signal names







RS232 signal reception



RS232The signal send



Terminal ready



Signal ground






Send the request







  Use the equipped with the product RS232 the master module for cable connection RS232 socket and computer RS232 socket, which had not been the master module available power supply,  the master module for cable connection USB and of the computer USB and use a computer USB ports of 5VDC power supply, for there is no such as like touch-screen USB port installations are now available for external power supply terminal voltage 9~ 40VDC power to supply to the master module.

    The master module of USB socket

       As a standard USB-B oriented socket, equipped with the product are available from USB cable to connect to the computer's USB estuary, when the work of the master module from the computer's power supply in USB estuary supply, no need external power supply. The first time you USB interface may prompt you to install the USB drivers, please click on the computer prompts you to install CD's USB driver USB converted to a serial port (com port), please refer to the CD of the“ USB driver installation notes document”。.

 The master module of the external power supply terminals:

       Only when you use the master module RS232 interface and not USB electricity supply when required by the external power supply power suppl

The master-slave module baud rate setting the baud rate that corresponds to the switch:





The baud rate ( bps)




AT directive settings






























       The required assurances communication software and the Lord, from the module settings to the same baud rate, change switch modules have to power the new settings will take effect.

FS-BT-PPI uses example

       Personal computer Micro/win STEP7 programming software and S7-200 series PLC implementation of Bluetooth wireless communication, uploaded, downloaded program data, monitoring PLC etc., are as follows:

1、FS-BT-PPI the master module and the slave module baud rate switch to dial and PLC the same baud rate, such as 9600bps or 19200bps , does not know PLC of The baud rate, the available PC/PPI programming cable test it out.

2、 The master module USB estuary connection to the computer's USB estuary, if this is the first use USB estuary will be prompted to install USB driver, install the driver after the USB port of  the Windows in Device Manager in the corresponding serial number(com number)。

If you use RS232 port, the master module of RS232 port connection to the computer's RS232 port, when you need to connect the master module USB port to the computer's USB interface to gain power, or in a separate add-in 9~ 40VDC DC power supply.

3、 Slave module DB9M plug into PLC of the RS485 port (programming port).If this is more than one S7-200PLC network, DB9M will plug into the network band programming port bus connector.

4、 If the Bluetooth-slave module of unanimity within range of effective communication, FS-BT-PPI  link some blue indicator light will Flash become flashing on after the seconds that represents the master-slave module has established the Bluetooth communication links, you can have transparent data transfer, this State called“ built chain”.

 5、Open the Micro/win STEP7 programming software, click “ settings PG/PC interfaces ” button and select “ PC/PPI cable(PPI)”  After you click on the “ Properties ” button, shown in the following figure:

6、 Set the local serial number in the connect and check off the“ modem connection ”,as shown here:

7、In PPI Set the baud rate , the baud rate to PLC t of he baud rate, and must be FS-BT-PPI the baud rate settings on the same baud rate that corresponds to the switch.

8、 Double-click the “ connection ”, the following figure:

9、To add a connection:

10、Select the local modem as “ radio / RF modems ”, configure com ports, baud rate, parity bit, after you click the buttons “ confirmation ”, shown in the following figure:

11、Tap “ the next step” the next step:

12、 Click “ connection ” button to connect to remote station:

13、 Double-click “ double-click refresh ” will connect to remote PLC:

       If you repeatedly double-click “ double-click refresh” is also no after PLC model, and appears unknown : 2 address ”, it's all right, you can also click on the“ confirmed ” that after the button to ignore the error for subsequent operation !

Go to this, the computer has already passed the Bluetooth wireless connection to the remote S7-200PLC , on the remote user can PLC conduct program data upload, download, monitoring the use of communication, and PC/PPI cable exactly the same, for S7-200PLC free port communication is also true.

FS-BT-PPI can also be used in the third-party touch screen or other device and S7-200PLC connections, use the free port communication or “ radio / RF modems ” PPI communications, specific reference to the above, please use the method of computing and PLC connections.

FS-BT-PPI does not support 187.5Kbps baud rate, if your S7-200PLC The rate of has been set to 187.5Kbps ,need to use USB/PPIM +  multi-master station programming cable to modify it into 9.6Kbps or 19.2Kbsp The baud rate of , etc.) supported

FS-BT-PPI per set put contains the following accessories:

FS-BT-PPI 2 modules (master module and from module)

2.4 GHz, 3dB antenna 1

RS232 1 cable (1m) 1

USB A-B cable(2m) 1

CD (with manual and USB driver) 1