ProductPRODUCT
Featured products
Contact Us
- ABB
- PM856
- AC 800M CPU Processor Module
- Sweden
- 225 mm × 108 mm × 135 mm
- 1.1kg
- 3BSE018128R1
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 79
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| sales@plc-automations.com | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
ABB PM856 (3BSE018128R1) — Product Overview
Brand: ABB
Series: S800 / Advant Controller 80 (AC80) family
Product Introduction
The ABB PM856 is a high-performance processor module designed for the ABB S800 and AC80 series control systems. It serves as the central processing unit that executes automation logic, processes data, and coordinates communication between input/output modules and higher-level control systems.
With enhanced computing power compared to earlier models, the PM856 supports complex control algorithms and large-scale distributed systems. Its rugged design and extensive communication options make it ideal for critical industrial automation applications requiring reliability, speed, and scalability.
Product Parameters
| Parameter | Specification |
|---|---|
| Processor Type | Motorola MC68360, 25 MHz 16-bit RISC CPU |
| Memory | RAM: 512 KB; Flash: 1 MB |
| Power Supply | 24 V DC (19.2–30 V), redundant power support |
| Communication Interfaces | RS-232, RS-485, Profibus DP, Modbus RTU, Ethernet (optional) |
| Maximum Supported I/O Modules | Up to 24 (12 electrical + 12 optical) |
| Operating Temperature | -40°C to +70°C |
| Mounting | DIN-rail or rack mounting |
| Protection Class | IP20 standard |
| Dimensions (W × D × H) | 225 mm × 108 mm × 135 mm |
| Weight | Approx. 1.1 kg |
Product Applications
-
Distributed control systems in power plants, water treatment, and chemical processing
-
Control of manufacturing production lines and material handling systems
-
Complex automation tasks in oil and gas industry
-
Integrated process control for refineries and large-scale plants
-
Systems requiring high reliability, fast processing, and flexible communication options
Product Advantages
-
Enhanced Processing Power: Increased memory and processing speed compared to previous generations for complex control.
-
Wide Communication Support: Built-in interfaces support popular industrial protocols ensuring easy integration.
-
Robust Industrial Design: Designed for harsh environments with wide operating temperature range and durable construction.
-
Modular Scalability: Supports expansion up to 24 I/O modules allowing system growth without replacing the processor.
-
Reliable Operation: Redundant power supply capability and advanced diagnostics minimize downtime and improve maintenance.
Related Models in the Same Series or Family
| Model | Type | Processor / Feature | Size (mm) | Weight (kg) |
|---|---|---|---|---|
| PM825 | Processor Module | Motorola MC68360, 256 KB RAM | 225 × 108 × 135 | 1.0 |
| PM801F | Entry-Level Processor | Basic processing capability | 225 × 108 × 135 | 0.9 |
| PM855 | Processor Module | Slightly lower memory than PM856 | 225 × 108 × 135 | 1.0 |
| CI854 | Communications Interface | Protocol conversion | 150 × 108 × 135 | 0.7 |
| TB820 | Power Supply Module | Redundant power source | 90 × 108 × 135 | 0.5 |
Popular ABB Models (Same Brand)
| Model | Function | Highlight | Size (mm) | Weight (kg) |
|---|---|---|---|---|
| PM861AK01 | Advanced Processor | Higher processing capacity | 225 × 108 × 135 | 1.2 |
| PM633 | Process Module | Mid-range control | 225 × 108 × 135 | 0.95 |
| AI830 | Analog Input Module | RTD and current inputs | 45 × 102 × 119 | 0.16 |
| AO810V2 | Analog Output Module | Multiple voltage/current ranges | 45 × 102 × 119 | 0.18 |
| DO840 | Digital Output Module | Relay outputs, high voltage | 45 × 102 × 119 | 0.18 |
Frequently Asked Questions (FAQ) — ABB PM856
Q1: What power supply does the PM856 require?
A1: It operates on 24 V DC within a 19.2 to 30 V range and supports redundant power supplies for increased reliability.
Q2: What processor is used in the PM856?
A2: It uses a Motorola MC68360 16-bit RISC CPU running at 25 MHz.
Q3: How much memory does the PM856 have?
A3: The PM856 comes with 512 KB RAM and 1 MB of flash memory.
Q4: Which communication protocols are supported?
A4: It supports RS-232, RS-485, Profibus DP, Modbus RTU, and optional Ethernet interfaces.
Q5: How many I/O modules can the PM856 handle?
A5: It can support up to 24 I/O modules, divided into 12 electrical and 12 optical modules.
Q6: What are the operating temperature limits?
A6: The PM856 is designed to operate from -40°C up to +70°C.
Q7: What are the physical dimensions and weight of the module?
A7: The dimensions are 225 mm wide, 108 mm deep, and 135 mm high, weighing approximately 1.1 kg.
Q8: Can the PM856 be hot-swapped?
A8: No, it must be powered down before removal or installation to ensure system integrity.
Q9: What industrial environments is the PM856 suited for?
A9: It is ideal for heavy industry such as power plants, water treatment facilities, chemical processing, and manufacturing.
Q10: Does the PM856 support redundant power supplies?
A10: Yes, it supports redundant 24 V DC power supplies to enhance system uptime.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.