Cummins PowerCommand PCC1.2 HMI220 300-6609-0 Modules

Technical Dossier

Product Details And Specifications

Cummins PowerCommand PCC1.2 Series Technical Notes

The Evolution of PCC1.2 Architecture

The PowerCommand PCC1.x control architecture was introduced by Cummins in the mid-1990s as a microprocessor-based replacement for analog relay-logic control panels. The PCC1.1 established the baseline: a single-board controller handling engine speed governing, voltage regulation, fault detection, and basic annunciation. The PCC1.2 refined this architecture with improved HMI integration, expanded fault code libraries, and enhanced compatibility with Cummins' MODBUS-based remote monitoring systems.

Key architectural characteristics of the PCC1.2 platform include a 16-bit embedded processor, CAN-bus communication backbone, discrete I/O expansion capability, and a dedicated HMI220 operator panel interface — the module referenced in SKU PCC1.2 HMI220 300-6609-0. The HMI220 panel provides the primary operator touchpoint: LED fault annunciation, digital metering display, and manual/auto/off mode selection.

Compatibility note: PCC1.2 control boards are not directly interchangeable with PCC2.0 or PCC3.3 series without firmware and wiring harness modifications. Procurement teams sourcing replacements must verify the exact assembly part number (300-XXXX-X suffix) to avoid cross-series mismatches — a common and costly field error.

PCC1.2 Full Catalog & Functionalities (SKU List)

The following SKUs represent the core module inventory within the Cummins PowerCommand PCC1.2 ecosystem. Each entry reflects a distinct functional role within the control architecture:

Control & CPU Modules

• 300-6609-0: HMI220 operator display panel — primary man-machine interface for PCC1.2 genset controllers, LED metering and fault annunciation.
• 300-4379-0: PCC1.2 main control board — core engine/alternator management, speed governing, voltage regulation.
• 300-4379-01: PCC1.2 main control board, revision 01 — updated firmware baseline, improved CAN-bus stability.
• 300-4379-02: PCC1.2 main control board, revision 02 — enhanced fault logging capacity.
• 300-4380-0: PCC1.2 base board assembly — backplane and power distribution for control stack.
• 300-4380-01: PCC1.2 base board, revision 01 — revised power rail filtering for noisy grid environments.

HMI & Display Modules

• 300-6609-0 (HMI220): Standard operator panel — 4-line digital display, LED indicators, mode selector switch.
• 300-6609-01: HMI220 panel, revision 01 — improved display contrast, updated button assembly.
• 300-6610-0 (HMI320): Enhanced operator panel — graphical display, expanded fault history, compatible with PCC1.2 and PCC2.0.
• 300-6611-0 (HMI220 Remote): Remote-mount HMI220 panel — for installations requiring panel separation from genset.

I/O & Expansion Modules

• 300-4381-0: Discrete I/O expansion module — adds 8 DI / 4 DO for auxiliary equipment control.
• 300-4382-0: Analog input module — 4-channel 4–20 mA input for remote sensor integration.
• 300-4383-0: Relay output module — 6 x SPDT relay outputs for external load control and alarm routing.

Communication & Network Modules

• 300-4384-0: MODBUS RTU communication adapter — RS-485 interface for SCADA and BMS integration.
• 300-4385-0: Ethernet gateway module — TCP/IP bridge for PowerCommand Network (PCNet) connectivity.
• 300-4386-0: Paralleling module — load sharing and synchronization for multi-genset installations.

Power Supply Modules

• 300-4387-0: 24 VDC control power supply — dedicated regulated supply for PCC1.2 control board stack.
• 300-4388-0: Battery charger module — integrated float/equalize charger for starting battery maintenance.

Sourcing Hard-to-Find & Obsolete PCC1.2 Parts

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.

Quality Control for the PCC1.2 Range

DriveKNMS quality control protocol for PCC1.2 modules includes: (1) Visual inspection for PCB corrosion, capacitor bulge, and connector pin damage. (2) Powered bench test using a Cummins-compatible test harness — verifying all I/O channels, display function, and CAN-bus communication. (3) Firmware version verification — confirming the module carries a compatible firmware revision for the target genset application. (4) 48-hour burn-in test for control board assemblies. (5) ESD-safe packaging with humidity indicator cards for international shipment.