SCM-1 DEIF Synchronizing and Measuring Module in stock

• Brand
  DEIF
• Model
  SCM-1
• Product Name
  Synchronizing and Measuring Module for Generator Control
• Place of Origin
  Denmark
• Customs HS Code
  8537101190
• Power Supply
  24 V DC
• Dimensions
  130 mm × 90 mm × 55 mm
• Weight
  0.32 kg
• Operating Temperature
  -25 °C to +70 °C
• Storage Temperature
  -40 °C to +85 °C
• Warranty
  12 month
• Product Status
  original

How DEIF SCM-1 Communicates with Third-Party PLC and DCS Systems

The DEIF SCM-1 implements data interchange with external third-party PLC and DCS platforms primarily based on open-standard Modbus protocols. Standard basic data communication does not depend on vendor-specific proprietary hardware adapters; proper cable wiring and communication parameter configuration are sufficient to establish valid data links.

Two physical media are available for external third-party integration: RS-485 serial port and Ethernet RJ45 network port.

For RS-485 serial-bus connection, Modbus RTU serves as the communication protocol. In this architecture, the third-party PLC or DCS functions as the Modbus master device, whereas the SCM-1 operates as a Modbus slave node on the multi-drop bus. The master station initiates cyclic read requests targeting SCM-1 holding registers to retrieve a full range of process data, including electrical measured parameters, unit operating states, binary status flags and alarm diagnostic information. Furthermore, the master can transmit operational instructions by writing values into assigned register addresses, enabling remote functions such as synchronisation activation, load-sharing adjustment and related control operations. Appropriate RS-485 bus termination resistors and matching baud-rate, parity-bit and slave-address settings are mandatory to guarantee serial-bus communication stability.

For Ethernet-based networking, Modbus TCP protocol is deployed. Straight-through network cables link the SCM-1 Ethernet interface to the existing control-system local area network. The PLC or DCS sets up an active TCP client connection toward the IP address of SCM-1. Once the network socket is established, the controller directly accesses the complete SCM-1 register mapping table. Bidirectional real-time interaction is achieved: high-frequency acquisition of generator measurements, status feedback and alarm events, as well as transmission of remote control commands from upper-level automation systems.

It should be emphasised that the CAN bus and DEIF exclusive DCS bus are designed exclusively for internal inter-module communication among native DEIF controller products. These interfaces cannot be directly interfaced to generic third-party PLC or DCS hardware.

DEIF SCM-1 Compatibility, Supported Software & Communication Protocols

Compatible Systems

Native DEIF Systems

The SCM-1 functions as a core synchronization and measuring unit for marine, offshore and on shore generator power plants. It features full integration with DEIF Delomatic-4 and Delomatic 3 power management platforms, and interoperates seamlessly with DEIF 8900-range multi-generator controllers, protection relays and auxiliary modules.

Third-party PLC & DCS Systems

Siemens S7-1200 / S7-1500 / S7-300 PLC series

Allen-Bradley ControlLogix / CompactLogix control platforms

Schneider Modicon Quantum / M340 PLC

Widely-adopted industrial DCS applied in power generation, marine automation and distributed energy control scenarios.

Upper-level SCADA & Monitoring Systems

Compatible with mainstream SCADA and HMI software such as Wonderware, WinCC and Ignition, as well as local marine monitoring systems. It enables data collection, genset status visualization, alarm transmission and remote command execution.

Field-side Devices

Generator circuit breakers, automatic voltage regulators, governors, current-voltage transducers, alarm annunciators and marine bus-tie protection equipment.

Supported Software

DEIF PC Tool Software

Official dedicated tool for SCM-1 configuration, parameter setup, commissioning and troubleshooting. It supports parameter downloading, synchronisation curve adjustment, measurement calibration, fault log retrieval and firmware update via RS-232, RS-485 or Ethernet.

DEIF Utility Software Suite

Provides offline project configuration, parameter file backup & restoration, and alarm-event report export for the complete genset power-management system.

Third-party Configuration Software

Any HMI or SCADA software equipped with standard Modbus drivers is applicable. PLC programming tools can directly access and modify SCM-1 register data without custom-developed drivers.

Communication Interfaces

RS-232: Point-to-point local commissioning link

RS-485: Multi-drop field bus connection

Ethernet: TCP/IP network-based communication

Supported Communication Protocols

Modbus RTU (RS-485 / RS-232): Primary serial protocol. Reads electrical measurements, genset operating status and alarm information through registers; also accepts writable commands for synchronisation, load sharing and equipment control.

Modbus TCP (Ethernet): Delivers real-time data exchange between SCM-1 and supervisory hosts, PLCs and SCADA systems over Ethernet networks.

CAN / CANopen: Internal bus interface for data exchange with DEIF local controllers, delivering high-speed real-time control signals among multi-generator modules.

DEIF proprietary DCS bus: Exclusive internal protocol for inter-module communication within Delomatic systems. It implements load-sharing and parallel-operation logic between multiple SCM-1 units and associated controllers.

MDR2
AGC 242
AGC 245
PPU-3