GCP-MG Modbus gateway with Ethernet for Woodward GCP-30 genset controls and LS 4 controls

GCP-31/GCP-32 to Modbus Gateway with CAN and RS-485
Designed for GCP-31/GCP-32 Designed for LS 4 Works with Ethernet Works with Modbus Works with Controller Area Network

GCP-MG is a next-generation Modbus/CAN gateway specifically designed to interface Woodward's GCP-30 series genset controls (GCP-31, GCP-32), and LS 4 circuit breaker controls with Modbus networks. The GCP-MG gateway has been developed in cooperation with Woodward to ensure the highest possible degree of interoperability with Woodward equipment.

The gateway features CAN, serial RS-232 and RS-485 ports as well as an Ethernet port and can be mounted on a DIN rail. On the CAN side it implements the Woodward CAL protocol to connect to the GCP controls. On the serial ports and on Ethernet it implements a Modbus server (Modbus RTU and Modbus/TCP) and accepts connections from Modbus master devices like PLCs and SCADA systems.

Usage and configuration of the gateway is simple and conveniently performed using a web browser which connects to the embedded web server.

Common applications include:

  • PLC connection
  • Operator panel interfacing
  • HMIs
  • SCADA integration
  • Power station automation
  • Gen set control
  • Remote control & monitoring
  • Data logging

Features

  • Modbus/TCP protocol (Ethernet)

  • Modbus RTU protocol (either RS-232 or RS-485, software configurable)

  • Interfaces with up to 16 GCP-30 controls and up to 8 LS 4 controls

  • Full support of Option SB03 (Cat CCM) and Option SC06 (MTU MDEC)

  • Modbus register layout compatible with GW 4

  • Dedicated Modbus slave ID for each GCP-30 and LS 4 control

  • Large internal buffer for data

  • Complete data set of one GCP-30 unit can be read with a single Modbus transaction

  • Integer/Exponent value pairs for voltages, power and currents are additionally represented as 32-bit floating point registers

  • Transparent handling of data guarantees compatibility with future Woodward firmware updates

  • Serial baud rate up to 115200 bps

  • Support of Modbus function codes 03, 04, 06 and 16

  • Concurrently one Modbus serial line and up to two Modbus/TCP connections

  • Low configuration overhead, just an IP address

  • Embedded web server for easy configuration and commissioning using a web browser

  • Firmware upgradeable via Ethernet

  • Status LEDs for power, Ethernet link, device status and communication status

  • 24 V DC (10-30 V) power supply

  • DIN rail mountable