Panasonic P400MA Modules ANPMA4311V1

Technical Dossier

Product Details And Specifications

Panasonic P400MA Series Technical Notes

The Evolution of P400MA Architecture

The P400MA platform was developed as part of Panasonic's mid-range PLC expansion strategy targeting process-intensive applications requiring high I/O density and network integration. Early revisions of the P400MA architecture relied on proprietary backplane bus communication with fixed-slot addressing, limiting hot-swap capability. Subsequent hardware revisions introduced improved bus arbitration, expanded memory addressing for ladder and function block programs, and support for open fieldbus protocols including PROFIBUS-DP and Modbus RTU via dedicated communication adapter modules.

As the platform matured, Panasonic introduced enhanced CPU variants with faster scan cycle times and expanded data register capacity. The communication layer evolved from RS-232/RS-485 serial links to Ethernet-based connectivity, enabling integration with SCADA systems and MES layers. Compatibility between early-generation I/O modules and later CPU revisions requires careful firmware version cross-referencing; mixing hardware generations without validation can result in backplane addressing conflicts. For facilities still operating first-generation P400MA racks, sourcing original-specification modules is the only reliable path to maintaining system integrity without a full platform migration.

P400MA Full Catalog & Functionalities (SKU List)

The following SKUs represent verified modules within the Panasonic P400MA series, organized by functional category. Each entry reflects a discrete hardware unit with a defined role within the P400MA rack architecture.

CPU / Controller Modules

• ANPMA4311V1: P400MA main CPU controller module, ladder/FBD execution, serial comm port
• ANPMA4312V1: P400MA enhanced CPU with expanded program memory and faster scan cycle
• ANPMA4313V1: P400MA high-speed CPU variant with dual-port Ethernet and extended data registers

Digital Input (DI) Modules

• ANPMA4321V1: 16-point 24VDC digital input module, sink/source compatible, LED status per channel
• ANPMA4322V1: 32-point 24VDC digital input module, high-density I/O for compact panel builds
• ANPMA4323V1: 16-point 120VAC digital input module for legacy field device integration

Digital Output (DO) Modules

• ANPMA4331V1: 16-point transistor output module, NPN, 0.5A per point, short-circuit protected
• ANPMA4332V1: 16-point relay output module, 2A per point, for inductive load switching
• ANPMA4333V1: 32-point transistor output module, PNP, high-density digital output

Analog Input (AI) Modules

• ANPMA4341V1: 4-channel analog input, 4–20mA / 0–10V selectable, 12-bit resolution
• ANPMA4342V1: 8-channel analog input module, 14-bit resolution, for precision process measurement
• ANPMA4343V1: 4-channel thermocouple input module, K/J/T/E type, cold junction compensation

Analog Output (AO) Modules

• ANPMA4351V1: 4-channel analog output, 4–20mA / 0–10V, 12-bit resolution, isolated outputs
• ANPMA4352V1: 2-channel high-resolution analog output, 16-bit, for precision valve positioner control

Communication Adapter Modules

• ANPMA4361V1: PROFIBUS-DP slave adapter, up to 244 bytes I/O, DIN rail mount
• ANPMA4362V1: Modbus RTU/ASCII master/slave communication module, RS-485 interface
• ANPMA4363V1: Ethernet TCP/IP communication module, MEWTOCOL and Modbus TCP support

Power Supply Modules

• ANPMA4371V1: 24VDC rack power supply module, 5A output, wide-range AC input 100–240VAC
• ANPMA4372V1: Redundant power supply module for P400MA rack, hot-swap capable