BCNet-S7300-S is used for data collection of PLCs such as Siemens S7-200/SMART S7-200/300/400/Siemens CNC 840D, 840DSL, etc. It is very convenient to build a production management system. The module integrates WiFi function, supports AP mode, STA mode and AP+STA mode, which is very convenient to build a WiFi network, and perform PLC programming, data acquisition and data exchange directly through WiFi. It supports communication with Ethernet interface of S7-200SMART, S7-1200/1500, S7-200/300/400, ModbusTCP master-slave communication and point table detection function. The straight-through type and the bridge type can be selected by dial code. The straight-through type nine-pin female port supports S7 multi-master communication, and the bridge-type nine-pin female port supports ModbusRTU master-slave communication.

BCNet-S7300-S Features

  1. Support multi-master communication, the expansion port can be connected to touch screen or other masters.
  2. Set parameters and run diagnostics on the device through the WEB server or the configuration diagnostic tool BCDevice.
  3. The baud rate is 9.6Kbps~6Mbps adaptive.
  4. Installed on a 35mm guide rail, connected to the PPI/MPI/PROFIBUS communication port of the PLC through a DP cable, and an external 24VDC power supply is required.
  5. Integrated WiFi function, support AP mode, STA mode and AP+STA mode.
  6. PLC programming, data acquisition and data exchange can be performed through WiFi.
  7. Support the function of communicating with the Ethernet interface of S7-200, S7-200SMART, S7-1200/1500, S7-300, S7-400 and the function of ModbusTCP master and slave station.
  8. The extended nine-pin female port supports the master-slave function of modbusRTU.
  9. Support Siemens S7 Ethernet communication driver, including MicroWIN, STEP7, Portal and WinCC, etc.
  10. Users can use high-level language programming (such as VB, VC, C#, etc.) according to the BCNetS7 protocol to realize data communication with S7-200/300/400, which is convenient for developing production management systems.
  11. BCNetS7 OPC server is provided free of charge, and SCADA supporting OPC channel communicates with PLC in OPC mode.
  12. Integrated ModbusTCP server, Modbus data area can be automatically or edited to map to S7-200/300/400 registers.
  13. It can realize S7TCP connection and ModbusTCP communication at the same time, and supports the connection of up to 32 upper computers.
  14. Support firmware update on the user side through Ethernet, one purchase, permanent upgrade.

Typical Application

BCNet-S7300-S Bridge Type Typical application

Technical parameters

Product ModelBCNet-S7300-S
DescriptionSiemens S7-300 Ethernet communication processor
ColorMetallic Black
Status displayPwr, Bus,WIFI
Ethernet Interface
WiFi interface
Interface Type
transmit power
Receive sensitivity
Wireless type
Security Mechanism
Protocol support
Number of TCP connections
802.11 b/g/n 2.4G-2.5G
External high gain antenna
+26dBm(MAX,2.4G 802.11b/g/n)
-89dBm(802.11b), -74dBm(802.11g), -72dBm(802.11n)
Station/AP mode
Siemens S7TCP, ModbusTCP, BCNetS7
up to 32
S7 interface
Interface Type
Transmission rate
Protocol support
DSUB 9 pin male
9.6K、19.2K、187.5K、500K、1.5M、3M、6Mbps, baud rate adaptive
PPI/MPI slave/MPI master slave/PROFIBUS
man-machine interface
Interface Type
Transmission rate
Protocol support
Type of entry
DSUB 9 pin female
MPI multi-master protocol, ModbusRTU master-slave
Siemens, MCGS, Wenview, Delta, Kinco, etc.
programming software
Configuration Software
OPC software
STEP7 MicroWIN TIA Portal
KepWare OPC, BCNetS7 OPC
Diagnostics and parameter setting toolsIE browser, default, BCDevice
Power supply
Voltage type
PLC communication port to take power directly
Working temperature0~60’C
Working humidity95% non-condensing
Installation methodPlug and play
Electromagnetic Compatibility2014/30/EU
CertificationCE certification

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