Direct Link Profibus to Modbus Serial Gateway

The BradCommunications™ Direct-Link™ gateway for PROFIBUS is built to enable the quick and cost effective connection of any Modbus device to a PROFIBUS-DP fieldbus. It is well suited for simple network extensions or the integration of legacy devices such as in the machine tool industry.

The BradCommunications Direct-Link gateway can act as a PROFIBUS-DP Slave on one side, and a MODBUS Master or Slave on the other side.

The gateway is built into the system without any lines of code. All parameters are set in a very user friendly way, via the usual PROFIBUS configuration tool. All the parameters are sent to the gateway automatically by the PROFIBUS Master at each network initialisation, permitting the replacement of the gateway without any configuration action.

Moreover, the Direct-Link gateway for PROFIBUS can drive up to 20 Modbus Slaves. It can exchange up to 244 bytes of inputs, and 244 bytes of outputs on PROFIBUS.

To complete the pre-defined Modbus commands, a “Pass Frame” mode is implemented to allow the composition of the Modbus commands directly from the PROFIBUS-DP buffer.

A standard Sub-DB9 Female connector provides the PROFIBUS interface and Plug Screw Terminal for Serial interface and Power Supply.

  • PROFIBUS-DP V0 Slave to Modbus Serial protocol conversion
  • Modbus Master or Slave RTU/ASCII
  • Manages up to 20 Modbus Slaves
  • Easy-to-use configuration by GSD file (no configuration tool needed)
  • Rotary switches for PROFIBUS Address
  • Automatic reconfiguration after replacement by the PROFIBUS Master (Set_Param command)
  • Serial RS232 or RS485 switch selectable
  • Full diagnostic through LEDs, dedicated RS232 port and Slave_Diag information
  • Up to 244 Input bytes and 244 Output bytes on PROFIBUS
  • Up to 20 Modbus Read and Write commands with Cyclic, Change of State or once triggers
  • DIN rail mounting, IP20
Ordering Options
Engineering No  Molex Order No  Part Description
DRL-DPS-SRM  112026-0013  BradCommunications™ Direct-Link™ PROFIBUS to Modbus Serial Gateway
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