DEIF PCM4.3 | Delomatic 400 Power and Control Module

The DEIF PCM4.3 is the power supply and main control module used in DEIF Delomatic 400 systems. It is installed at the leftmost position of the rack, supplies power to the other modules, manages data exchange through the backplane, and contains the main control program and communication interfaces. DEIF documentation identifies the PCM 4.3 as an 8TE module.

The module is suited to industrial and marine power-control applications where generator control, monitoring, communication, and coordination between rack modules are required. The available interfaces include CAN, RS-422/485, ARCNET, Ethernet, and a service interface.

📋 Product Datasheet

The official DEIF documentation specifies 18–36 VDC input power with a maximum 6 A rating, three independent CAN interfaces, one RS-422/485 interface, one ARCNET interface, one Ethernet interface, a 180 MHz processor, 64 MB SDRAM, and 16 MB Flash.

⚙️ Main Features

🔹 Main Rack Controller

PCM4.3 manages common system functions and data exchange between modules through the Delomatic rack backplane.

🔹 Integrated Power Supply

The module supplies the other modules installed in the rack. The specified supply range is 18–36 VDC, with maximum current consumption of 6 A.

🔹 Multiple Communication Interfaces

The module provides three independent CAN interfaces, RS-422/485, ARCNET, Ethernet, and a service interface, making it suitable for multi-module control-system architectures.

🔹 Embedded Control Software

The PCM4.3 contains the control unit and application software used for the common functionality of the Delomatic 400 system.

🔹 Industrial Rack Construction

The 8TE module is designed for installation in a Delomatic rack and is positioned on the left side of the rack.

🛠️ Operating Procedure & How to Use

1. Verify the Module

Before installation, check:

• PCM4.3 model marking
• Hardware revision
• Delomatic system type
• Rack compatibility
• DC supply voltage
• CAN configuration
• RS-422/485 configuration
• ARCNET connection
• Ethernet connection
• Existing application configuration

2. Install the Module

The PCM4.3 should be installed in the leftmost position of the Delomatic 400 rack.

🔧 Ensure the rack is de-energized unless an approved maintenance procedure specifically permits powered replacement.

🛡️ Use ESD protection when handling the PCB/module.

3. Connect Power

Connect the DC control supply within the specified 18–36 VDC range.

Check polarity and terminal wiring carefully before energizing.

4. Connect Communication

Depending on the system architecture, connect:

• CAN 1
• CAN 2
• CAN 3
• RS-422/485
• ARCNET
• Ethernet

DEIF installation documentation recommends screened twisted-pair cabling for CAN, RS-485, and ARCNET communication.

5. Configure the System

Use the appropriate DEIF engineering/service tools and the existing application configuration to verify communication parameters and system functions.

Typical checks include:

• CAN bus speed
• Node/network configuration
• RS-485 parameters
• ARCNET communication
• Ethernet settings
• Application software
• I/O module communication

⚡ Power-On Sequence

1. 🔒 Place the generator or controlled equipment in a safe startup condition.
2. 🔍 Confirm PCM4.3 installation.
3. 🔍 Check the rack backplane connection.
4. 🔍 Verify 18–36 VDC supply.
5. 🔍 Check DC polarity.
6. 🔍 Inspect CAN/RS-485/ARCNET wiring.
7. 🔍 Check Ethernet connection.
8. ⚡ Apply DC power.
9. 🟢 Observe module status indications.
10. 🧪 Allow the controller to complete initialization.
11. 🌐 Verify communication with rack modules.
12. 📡 Check CAN and other configured communication links.
13. 🖥️ Verify application status.
14. ⚙️ Check generator/control-system functions.
15. ✅ Return the system to normal operation.

🔌 Power-Off Sequence

1. 🛑 Stop the controlled generator/system according to the plant procedure.
2. 🔒 Disable relevant automatic control functions.
3. 💾 Save or record the current configuration.
4. 📊 Record alarms and communication status.
5. ⚡ Remove DC power according to the approved maintenance procedure.
6. 🔍 Confirm the module is de-energized.
7. 🛡️ Apply ESD protection.
8. 🔧 Remove the PCM4.3 from the rack if required.
9. 📦 Protect the module from static discharge and moisture.

📖 Product Usage Instructions

The PCM4.3 is not normally used as a standalone PLC. It is the central power and control module within a Delomatic 400 rack.

A typical architecture is:

DC Power → PCM4.3 → Backplane → Other Delomatic Modules

At the communication level:

PCM4.3 ↔ CAN / RS-485 / ARCNET / Ethernet ↔ Other Controllers or System Devices

The PCM4.3 controls data exchange through the rack backplane and contains the application software responsible for common system functionality.

For generator and power-management applications, the surrounding Delomatic system can use additional measurement, I/O, and control modules. The exact functions depend on the application software installed in the PCM4.3.

🔍 Installation & Commissioning Checklist

Before commissioning:

• Confirm PCM4.3 model.

• Check hardware revision.

• Verify Delomatic 400 rack.

• Confirm leftmost rack position.

• Check 18–36 VDC supply.

• Verify DC polarity.

• Check backplane connector.

• Inspect CAN wiring.

• Verify CAN termination.

• Check RS-485 wiring.

• Check ARCNET wiring.

• Verify Ethernet cable.

• Confirm application software.

• Check module communication.

• Verify connected I/O modules.

• Check system alarms.

• Test communication channels.

• Verify generator/control functions.

• Record final configuration.

❓ Common Questions & Answers

Q: What is DEIF PCM4.3?

A: PCM4.3 is the power supply and main control module for the DEIF Delomatic 400 system. It supplies other rack modules and manages backplane data exchange.

Q: Where is PCM4.3 installed?

A: It is installed in the leftmost position of the Delomatic 400 rack.

Q: What is the power supply range?

A: The documented supply range is 18–36 VDC, with maximum current of 6 A.

Q: How many CAN interfaces does it have?

A: It provides three independent CAN interfaces. Depending on the documentation revision/application, the supported CAN speed range is specified up to 1000 kbit/s.

Q: Does PCM4.3 support Ethernet?

A: Yes. It provides one 10/100 Mbit/s Ethernet interface.

Q: Does it have RS-485?

A: Yes. It provides one RS-422/485 interface.

Q: What is ARCNET used for?

A: ARCNET provides communication within compatible Delomatic system architectures. The documented PCM4.3 interface operates at 2.5 Mbit/s.

Q: Is PCM4.3 a power supply or controller?

A: It is both. DEIF describes it as the power supply and main control module, combining rack power distribution with control processing and communication functions.

Q: What processor does PCM4.3 use?

A: The documented module uses a 180 MHz processor, with 64 MB SDRAM and 16 MB Flash memory.

Q: Can PCM4.3 be replaced while the rack is powered?

A: Do not assume it can be hot-swapped. Because PCM4.3 is the main power and control module, replacement should follow the specific DEIF maintenance procedure for the installed system.

Q: What should be checked when replacing PCM4.3?

A: Match the complete model, hardware revision, application software, rack configuration, communication settings, and connected modules. A physically similar module is not necessarily a functional replacement.

🔟 Recommended DEIF Related Models

1. DEIF PCM4.3 — Delomatic 400 Power and Main Control Module
2. DEIF SCM4.1 — System Control / Measurement Module
3. DEIF IOM4.2 — Multifunction I/O Module
4. DEIF PCM4.2 — Power and Control Module
5. DEIF AGC-4 — Automatic Genset Controller
6. DEIF AGC-4 Mk II — Advanced Genset Controller
7. DEIF AGC-150 — Advanced Genset Controller
8. DEIF PPM-3 — Power Management Controller
9. DEIF ASC-4 — Automatic Sustainable Controller
10. DEIF GPU-3 — Generator Protection Unit

⚠️ Replacement note: The PCM4.3 belongs to the Delomatic 400 architecture and should not be treated as a generic PLC CPU. Before purchasing a replacement, verify the exact hardware revision, Delomatic rack type, application software, communication configuration, and connected modules.