Description
ABB PP846 3BSE042238R1
I. Basic Information
Model: PP846 | Part Number: 3BSE042238R1
Product Positioning: An industrial HMI operator panel from ABB Panel800 series, dedicated upper monitoring terminal matching 800xA/AC800M DCS. It serves as supporting HMI for technical revamp of legacy Advant OCS units in thermal power, petrochemical and metallurgy industries, applicable to compatibility renovation projects of new & legacy ABB control systems, and is a mainstream spare HMI for in-service DCS systems.
Brand: ABB DCS | Origin: SwedenProduct Type: 10.4-inch integrated industrial operator panel with physical keys + resistive touchscreen (integrated monolithic unit without separate base)
Compatibility: System800xA, full-range AC800M controllers (PM865/866/867), legacy Advant OCS (AC410/AC450) and AC500 PLC.
Mounting: Cutout flush mounting inside control cabinet; Overall dimension: 290(W)×226(H)×59(D) mm, Net Weight: approx. 1.6kg. Front panel rated IP65 for dustproof and water resistance, rear enclosure IP20. Die-cast aluminum housing with anti-corrosion coated finish.
Standard Configuration: 10.4-inch TFT LCD + side-mounted dedicated physical function key array + bottom navigation keys + front-panel resistive touchscreen, onboard communication ports, power terminals and status indicator LEDs.
II. Technical Specifications
(1) Display & Touch Parameters
Screen: 10.4-inch color TFT LCD, VGA resolution 640×480, 256 colors, brightness 200cd/㎡, contrast ratio 200:1.Touch: 4-wire resistive touchscreen with 3H wear-resistant top layer; equipped with dedicated side physical shortcut keys for start/stop, screen switch, alarm acknowledge and loop auto/manual mode switching, supporting dual-operation via touch + mechanical keys.
Main Control Unit: 266MHz ARM9 processor, 32MB SDRAM + 32MB Flash memory for embedded firmware and screen project storage.
(2) Electrical & Communication Specifications
Power Supply: DC24V±10%, max overall power consumption ≤18W, rated operating current ≈0.75A; built-in hardware protection against reverse polarity and surge at power input terminals.
Interface Layout:
- Serial Port: Isolated RS232 + RS485 with 2500VAC optoelectronic isolation;
- Onboard Protocols: ABB CS31, MasterBus300, native Advant protocol, Modbus RTU/TCP. Direct connection to legacy MB300 bus equipment, perfectly matching cross-generation networking solution with CI855 communication module;
Reserved USB service port for program download and screen project upload.
(3) Environmental Specifications
Operating Temperature: Continuous long-term operation from 0℃ to +50℃; Storage Temperature: -20℃ ~ +60℃.Humidity: 5%~95% RH non-condensing. Complies with IEC61000 EMC industrial EMC standards to withstand dusty and high-electromagnetic-interference environments in power and chemical plants.
III. Key Features
1. Full Compatibility between New and Legacy ABB DCS
Natively supports legacy Advant MB300 bus protocol. Paired with CI855 module, it enables interconnection between new AC800M system and traditional AC410/AC450 controllers. One single panel monitors process data of both new and existing production units, eliminating full replacement of operator stations during system revamp.
2. Dual Redundant Operation: Mechanical Keys + Touchscreen
Process-specific shortcut keys are arranged on panel side. When touchscreen malfunctions, physical buttons can still complete screen navigation, alarm reset and equipment start/stop to guarantee non-stop operation for process industries.
3. Offline Project Configuration & Online Runtime Operation
Monitor screens are programmed offline via dedicated ABB Panel Builder configuration software and downloaded into panel through USB. Supports synchronous linkage with upper 800xA system, real-time trending, pop-up alarm on limit violation and historical fault query during runtime.
4. Built-in Full Hardware Self-Diagnosis
Onboard LED indicators trigger local alerts for faults on power supply, communication and backlight. Fault codes are uploaded to AC800M controller and trigger pop-up communication fault alarms on 800xA HMI.
5. Multi-Language Support System
Pre-installed with multiple languages including Chinese, English, German and French; on-screen language can be switched online to fit domestic and overseas field projects.
IV. Operating Principle
After DC24V power-up → The unit runs self-check for backlight, touch circuit, memory and communication chips → Loads pre-downloaded HMI project files.
Downlink: Operator’s touch/key commands → Transmitted via RS485/CS31 bus to AC800M main controller → Converted into MB300 protocol by CI855 and sent down to legacy Advant controllers.
Uplink: Real-time field measurement data uploaded from DCS controllers → Dynamically refreshes values, trend curves and alarm messages on HMI screen.
Link Failure Handling: Red LED activates locally upon communication interruption, meanwhile an offline equipment alarm is generated on upper 800xA monitoring system.
V. Application Scenarios
- Local operator panel for Advant legacy DCS upgrading to 800xA on 300MW~1000MW thermal power unit retrofit projects;
- Replacement spare HMI for old operator stations during technical transformation of refining & coal chemical plants with legacy MB300 bus architecture;
- Field local HMI for projects integrating legacy Advant OCS of metallurgical blast furnace & sintering lines into new AC800M control system;
- Matching human-machine interface for local control consoles and DCS capacity expansion of existing cement and papermaking production lines.
