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| Place of Origin: | Germany |
| Brand Name: | ABB |
| Certification: | COO & COC |
| Model Number: | P854 |
P854 3BSE025349R1 ABB Power supply and communication management module AC 800M S800 I O
ABB P854 is the power and communication management module in the S800 I/O system, specifically designed for the TB854/TB855 redundant I/O baseboard. It not only provides stable and reliable + 5V and ± 15V logic power supplies for the connected DI/DO/AI/AO modules, but also manages the ModuleBus communication bus to ensure efficient and reliable transmission of I/O data between the modules and communication interfaces (such as CI854A).
Core features
Dual independent power supply input
Supports two 24V DC power inputs (L+1 / L+2)
Automatic switching, uninterrupted power supply
Built-in reverse polarity protection and overvoltage/overcurrent protection
Provide full-specification power supply for I/O modules
+ 5V DC: For digital module logic circuits
+ 15V / -15V DC: For the signal conditioning circuit of the analog module
Total output power: Meets the demand of up to 12 S800 I/O modules
Technical parameters
| Model | P854 |
| ABB Ordering Code | 3BSE025349R1 |
| Product Family | ABB AC 800M Communication Modules |
| Compatible Controllers | PM860, PM861, PM864, PM865 (and redundant variants) |
| Network Interface | 2 × 10/100 Mbps Ethernet (RJ45), auto-negotiating |
| Protocol Support | ABB Control Network (CN), IEEE 1588 PTP, Modbus TCP (configurable) |
| Redundancy | Yes – supports redundant AC 800M systems |
| Mounting | Plugs into AC 800M local I/O bus (no DIN rail required) |
| Operating Temperature | 0°C to +60°C |
| Power Consumption | ~3 W (supplied via controller backplane) |
| Certifications | CE, UL, CSA, IEC 61010-1, IEC 61326 |
Product Images
Related Products
| PM854 | 11AI810 |
| 2PM864 | 12AI815 |
| 3PM865 | 13AI835 |
| 4PS802 | 14AI845 |
| 5PS803 | 15DI810 |
| 6PS865 | 16DI811 |
| 7CI854 | 17DO810 |
| 8CI860 | 18DO814 |
| 9TB820 | 19AO810 |
| 10TU810 | 20AO815 |
