Product Details

The ProSoft PLX51-DF1-MSG is a DIN-rail mounted DF1 messaging gateway built for intelligent message routing between legacy DF1 serial controllers and modern EtherNet/IP Logix platforms. It is specially designed for DF1 radio modem networks and supports store-and-forward function, which is widely used in water treatment, remote skid and SCADA systems with long-distance wireless DF1 communication. It connects classic Rockwell controllers including PLC-5, SLC 500, MicroLogix and DF1 SCADA master stations to ControlLogix and CompactLogix PACs. The gateway supports three main operating modes: message initiator, DF1 slave and scheduled mode, which can adapt to different data interaction requirements without heavy modification of existing control logic. It adopts direct-to-tag technology, mapping DF1 messages directly to Logix controller tags to simplify configuration work and reduce commissioning time. This module can communicate with up to eight Logix controllers at the same time, and supports standard DF1 read and write commands, program upload and download, cross-controller messaging and HMI data collection. It supports DF1 full duplex, DF1 half duplex and DF1 radio modem protocols, with baud rate ranging from 1200 baud to 115200 baud, optional parity, CRC or BCC error checking. A built-in DF1 packet analyzer captures serial data frames, helping engineers quickly locate communication faults on DF1 radio links. The DIP switch on the module supports fixed IP setting for fast on-site deployment, and it can operate normally in redundant ControlLogix systems. Users complete tag mapping, serial parameters and alarm configuration through ProSoft PLX50 Configuration Utility. The gateway runs independently of the PLC scan cycle, so message routing and protocol conversion will not occupy controller resources or interfere with the original control logic. It records event logs in non-volatile memory and provides complete diagnostic tags for connection status, serial message counters, timeout and fault codes, which can be monitored on HMI or SCADA platforms for fast troubleshooting. A conformal coated version is optional for humid, dusty and corrosive industrial environments. This model is widely used in legacy system renovation, remote wireless PLC network migration and old SCADA upgrade projects in manufacturing, water and wastewater, oil and gas industries.

This gateway adopts rugged metal housing for DIN rail installation. It is equipped with one 10/100Mbps auto-MDIX RJ45 Ethernet port and one RS232 serial terminal port, accepts 10VDC to 36VDC wide-range DC power supply with 24VDC nominal input. LED indicators display power status, module fault, Ethernet link activity and DF1 serial communication status for convenient on-site inspection. The operating temperature range is -25°C to 70°C, storage temperature ranges from -40°C to 80°C, relative humidity 5% to 95% non-condensing. It complies with IEC industrial shock, vibration and EMC standards, and has obtained UL/cUL Class 1 Div 2, ATEX Zone 2 and CE certifications. It supports remote configuration, online firmware upgrade and configuration backup for long-term field maintenance.

This DF1 messaging gateway is widely applied in remote radio DF1 PLC network reconstruction, wastewater treatment plant control transformation, oil and gas skid remote monitoring and old SCADA system upgrading projects. It realizes stable message transmission between vintage DF1 serial wireless equipment and modern EtherNet/IP control network, avoiding the cost of replacing all legacy controllers and radio modems. As a reliable legacy protocol conversion spare part, the PLX51-DF1-MSG retains original field wiring and PLC programs and effectively reduces the renovation cost of old automation system integration.