The Prosoft PMF1327205 is a high-speed standalone gateway designed to convert between Modbus TCP/IP and PROFIBUS DP protocols. It allows Modbus TCP masters (such as PLCs, SCADA systems, or HMIs) to communicate seamlessly with PROFIBUS DP slave devices, eliminating the need for costly network upgrades or replacing existing field equipment. The gateway is ideal for hybrid automation environments where Ethernet-based controllers must interface with PROFIBUS networks.
Protocol 1: Modbus TCP/IP (Server or Client)
Protocol 2: PROFIBUS DP (Master)
Ethernet Interface: 10/100Base-T, RJ45, TCP/IP stack
PROFIBUS Interface: DB9 female, 9.6 kbps to 12 Mbps
Number of PROFIBUS Slaves: Up to 125
I/O Data Size: 1536 bytes input + 1536 bytes output
Modbus Connections: Up to 32 simultaneous client connections
Configuration: Web browser (HTTP) or Prosoft Configuration Builder software
Diagnostics: Built-in web server with status pages, event log, and network statistics
Power Supply: 10-30 V DC (24 V DC nominal)
Power Consumption: 5 W typical
Operating Temperature: -20°C to +70°C
Protection Rating: IP20
Mounting: DIN rail (35 mm)
Dimensions: 127 × 87 × 63 mm

The PMF1327205 can operate as a Modbus TCP server (slave) responding to read/write requests from a Modbus client, or as a Modbus TCP client (master) polling multiple Modbus servers. On the PROFIBUS side, the gateway acts as a Class 1 master (DP master) managing up to 125 slaves. Data mapping between the two protocols is user-configurable via a simple web interface or PC software, allowing flexible routing of I/O data, status information, and diagnostics.
The gateway includes an intuitive web server for configuration, monitoring, and firmware updates. The user can define Modbus address mappings, PROFIBUS GSD file uploads, and data conversion parameters. The event log captures communication errors, device status changes, and system events for troubleshooting. LEDs on the front panel indicate power, network activity, and PROFIBUS bus status.
This gateway is commonly used in water/wastewater treatment, building automation, energy management, and manufacturing facilities where existing PROFIBUS networks must be integrated with modern Ethernet-based control systems. It also serves as a cost-effective solution for OEMs who need to connect Modbus TCP HMIs to PROFIBUS drives or I/O.



