• Ethernet
  • Profibus

S7-200/300/400 Ethernet programming connector

Monitoring, programming and visualizing S7-PLCs over Ethernet

Product Image

NL 50-MPI-Image



At a glance

  • Connects to any free PROFIBUS/MPI/PPI port
  • Cost-effective alternative to original S7 Ethernet CPs
  • Automatic driver integration into any S7 engineering tool
  • Easy PLC to PLC coupling with Ethernet interfaceless PLCs
  • Immediate coupling of S7-compatible HMI devices over Ethernet
  • Effortless access over own applications, e.g. C++, C#

Weitere Informationen


As directly mountable or firmly attachable DIN rail device, the adaptors netLINK-MPI and netTAP-MPI replace expensive CP communication processors. The adaptors allow the programming, the visualization and the control of S7-200®, S7-300® or S7-400® PLCs via Ethernet.

The provided driver integrates into all well-known SIMATIC S7® engineering tools like STEP7® or TIA portal as a PG/PC programming interface. The device is set up with the engineering tool or conventional web browsers via the integrated web configuration pages.

The adaptors are suitable to program or change S7-PLC control programs and may serve to engineer HMI devices with the visualization software WinCC. By supporting the ”ISO on TCP“ RFC1006 Ethernet protocol, any third party or SIMATIC® visualization station can be coupled to the PLC. Once integrated into the office or plant network and connected to the internet, remote maintenance and logging over a router are also possible since plain TCP/IP protocol access mechanisms are used.

Organized in a network, direct communication between two or several PLCs via Ethernet can be realized. Even a coupling of PLCs without Ethernet port is possible using two adapters in conjunction. Fully integrated PROFIBUS diagnostics and Master Class 2 DPV1 services allow the unrestricted DP Slave device configuration and parameterization in STEP7®.

Power is supplied by a 24 V DC connector. If supported by the S7 PLC, the netLINK-MPI adaptor may be powered via the D-Sub9 connector and its extra feed-through D-Sub9 connector allows the connection of further devices to the same MPI/DP network.

Technical Details

ProductProduct nameNL 50-MPI
Part number1701.430
Brief descriptionS7-200/300/400 Ethernet Programming Connector
FunctionMonitoring, programming and visualizing S7-PLCs over Ethernet
Communication controllerTypenetX 50
Integrated MemoryRAM8 MB SDRAM
FLASH4 MB serial flash, with boot loader, firmware und configuration
Power supplySupply voltage24 V DC ± 6 V DC
Current (typically)57 mA (at 24 V), 72 mA (at 18 V), 48 mA (at 30 V)
ConnectorConnector for power supply from PLC: via D-Sub from PLC, male connector, 9-pin
Connector for external power supplyMini-COMBICON socket, 3.81 mm, 2-pin
Communication interface 1Communication standardPROFIBUS
Interface typeRS-485, non-isolated (for hardware revision 2 and 3), isolated (from hardware revision 4)
ConnectorD-Sub, male connector, 9-pin; D-Sub, female connector, 9-pin, as interface for a S7 programming tool with 1:1 connection
Communication interface 2Communication standardEthernet
Interface type10BASE-T/100BASE-TX, isolated
Auto negotiationsupported
Auto cross oversupported
ConnectorRJ45 socket
DisplaysLED displaySYS, System status
COM, Communication status
LNK, Ethernet link status
ACT, Ethernet activity status
Permitted ambient conditionsOperating temperature range0 °C … +55 °C
Humidity0 % … 85 % relative humidity (not condensing)
DeviceDimensions (L x W x H)74,3 mm x 40,6 mm x 16,7 mm
Weightapprox. 40 g
Protection classIP 20
Mounting/Installationdirectly on PLC
ConfigurationConfiguration softwareSyCon MPI or IBHnet-Treiber
Conformance with EMC directivesCE signyes
Electrostatic discharge (ESD) according to IEC/EN 61000-4-2:1995 (Air discharge method)10 kV, Criterion A
Electrostatic discharge (ESD) according to IEC/EN 61000-4-2:1995 (Contact discharge method)4 kV, Criterion B
Fast transient interferences (Burst), zone B, according to IEC/EN 61000-4-4:19951 kV Power supply connectors DC, Criterion B; 1 kV Communication and data lines, Criterion A
Surge voltage, zone B, according to IEC/EN 61000-4-5:19951 kV CM, 0,5 kV DM Power supply connectors DC, Criterion B; 1 kV CM Communication and data lines, Criterion B

Ordering information

Product namePart numberBrief description
NL 50-MPI1701.430S7-200/300/400 Ethernet programming connector

Gateways are for transferring and converting data between two identical or two different industrial automation networks. They provide a cost-effective solution that is easy to deploy for any kind of data conversion whether the application is a classic fieldbus, Ethernet, Real-Time Ethernet or a combination.