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GCP-MG Ethernet Modbus gateway for GCP genset controls

GCP-31/GCP-32 to Modbus Gateway with CAN and RS-485 The proconX GCP-MG is a next-generation Modbus/CAN gateway specifically designed to interface Woodward's GCP-30 series genset controls GCP-31, GCP-32, GCP-20, GCP-21, GCP-22 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 series 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.

Try the live demo: Connect to GCP-MG web server.

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Application

Possible areas of application are:

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

Key Features

  • Modbus/TCP protocol (Ethernet)
  • Modbus RTU protocol (RS-232 or RS-485, software configurable)
  • Interfaces with up to 16 GCP controls and up to 8 LS 4 controls
  • Full support of Option SB03 (Cat CCM) and Option SC06 (MTU MDEC)
  • GW4 backward compatible Modbus register layout
  • Dedicated Modbus Slave ID for each GCP and LS 4 control
  • Complete data set of one GCP 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
  • Support of Modbus function codes 03, 04, 06 and 16
  • Concurrent Modbus serial line and Modbus/TCP connections
  • Embedded web server for easy configuration and commissioning using a web browser
  • Firmware upgradeable via Ethernet
  • DIN rail mountable
  • 24 V DC (10-30 V) power supply
  • Status LEDs for Power, Ethernet Link, Device Status and Modbus/CAN status

Documentation

Browse the User manual online

Manuals & Datasheets
GCP-MG Data sheet GCP-MG Data sheetGCP-MG Ethernet Modbus gateway for Woodward GCP genset controls and LS 4 controls
GCP-MG User manual GCP-MG User manualGCP-MG Ethernet Modbus gateway: User manual v1.1
GCP-MG Installation guide GCP-MG Installation guideGCP-MG Ethernet Modbus gateway: Installation guide v1.0

Application Notes

Application Notes
Application Note 301 Application Note 301TFTP Firmware upgrade
Application Note 302 Application Note 302Remote control with the GCP-MG
Application Note 303 Application Note 303Diagnostic for the GCP-MG

Specifications

Interfaces

Ethernet

1

Serial Ports

2

1 for Modbus (either RS-232 or RS-485, software configurable)
1 for diagnostics (RS-232)

CAN

1

User Interface

LED Indicators

Power (green), Ethernet link (green), 2 status (bi-color red/green)

Monitoring & Configuration

Web browser based

Diagnostic

High Availability Features

Watchdog supervision, Brown-out detection

CAN Port

Connector

male 9-pin D-sub, CiA DS-102 pin-out

Physical Layer

ISO 11898

Speed

125 kBit/s

Max. number of nodes

64

Protocols

CAL 2.0

Isolation

non-isolated

RS-485 Modbus Port

Connector

3.81 mm 6-pin pluggable terminal block header (Mini Combicon)

Physical Layer

EIA-485-A, 2-wire

Speed

300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps

Max. number of nodes

32

Protocols

Modbus RTU slave

Isolation

non-isolated

RS-232 Modbus Port

Connector

male 9-pin D-sub, DTE, EIA-574 pin-out

Physical Layer

EIA–232-F

Signals

RXD, TXD, RTS, CTS

Speed

300, 600, 1200, 2400, 4800, 9600, 19200, 57600, 115200 bps

Protocols

Modbus RTU slave

Isolation

non-isolated

RS-232 Diagnostic Port

Connector

male 9-pin D-sub, DTE, EIA-574 pin-out

Physical Layer

EIA–232-F

Signals

RXD, TXD

Speed

9600 bps

Isolation

n/a

Protocols

ASCII Terminal

Ethernet Port

Connector

8-pin RJ-45 socket for Cat 5 shielded twisted pair

Physical & Data Link Layer Layer

IEEE 802.3i 10BASE-T

Isolation

1.5 kV galvanic

Speed

10 Mbit/s, half-duplex

Max. Cable Length

100 m (328 ft)

Ethernet Frame Types

802.3

Protocols

Modbus/TCP slave, HTTP, IP, TCP, ARP

Concurrent connections

2 Modbus/TCP, 2 HTTP

Enclosure

Material

Self-extinguishing PC/ABS blend (UL 94-V0)

Mounting

35 mm DIN Rail (EN 60715)

Classification / Type Rating

IP 20 / NEMA Type 1

Power Supply

Connector

3.81 mm 2-pin pluggable terminal block header (Mini Combicon)

Voltage

10-30 V DC

Current

30 mA typical @ 24 V DC

Intrinsic Consumption

750 mW

Environmental

Operating Temperature

0 to 60° C / 32 to 140 °F

Storage Temperature

-25 to 85° C / -13 to 185 °F

Humidity

10 to 95% non condensing

Operating Ambience

Free from corrosive gas, minimal dust

Physical

Dimensions

101 x 22.5 x 120 mm / 3.98 x 0.886 x 4.72 in

Weight

0.12 kg / 0.265 lb