Ethernet: 1 × RJ45 (10/100 Mbps), supports TCP/IP and Modbus TCP

Serial Port: 1 × Isolated RS-232/485, supports Modbus RTU

Fieldbus: Expandable to PROFIBUS DP and FOUNDATION Fieldbus HSE

I/O Expansion: ModuleBus, connecting up to 7 I/O modules

Others: LED status indicators, INIT button, SD card slot (Max. 32GB), backup battery

Control Capability: Compliant with full IEC 61131-3 languages (LD/FBD/ST/SFC) for logic and closed-loop control.

Real-time Performance: Minimum cycle time is 1 ms; Boolean instruction speed reaches 0.1 μs level.

Data Processing: Supports up to 2048 DI/DO points and 512 AI/AO points.

Communication Protocols: Modbus TCP/RTU, PROFIBUS DP, Ethernet/IP, IEC 61850.

High Availability: Hot standby redundancy, built-in hardware diagnosis, event logging, online modification and hot-swappable I/O.

Process Industry: Main controller for DCS of chemical reactors, oil & gas wellheads/pipelines and water treatment systems.

Power & Energy: Control for substations, wind/PV power plants, energy storage systems and auxiliary equipment of boilers & steam turbines.

Smart Manufacturing: Production line control for automotive welding & painting, papermaking, packaging and textile industries.

Building & Infrastructure: Automation for large HVAC systems, data centers and rail transit stations.

OEM Equipment: Control for medium-sized complete machinery, extruders, injection molding machines and printing equipment.

Positioning: PM802F is designed for compact small and medium-sized systems; PM861 and PM858 are high-performance controllers for medium and large-scale systems.

Performance: PM802F (400MHz / 4MB) < PM861 (800MHz / 16MB) < PM858 (Dual CPU redundancy).

I/O Scale: PM802F is applicable to systems with no more than 512 points; PM861 and PM858 support over 2000 points.

Redundancy: PM802F supports hot standby; PM858 adopts dual CPU hardware redundancy (SIL3).