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| Place of Origin: | Germany |
| Brand Name: | ABB |
| Certification: | COO & COC |
| Model Number: | AO845A |
AO845A 3BSE045584R1 ABB High-density intelligent analog output module AC 800M System 800A
ABB AO845A is a new generation 16-channel analog output module in the AC 800M distributed control system. While providing high-density 4-20mA output, it natively supports HART digital communication write function. It can directly send set values, range parameters or operation commands to on-site HART execution devices (such as intelligent valve positioners and frequency converters), achieving true "digital + analog" hybrid control.
Core features
16-channel high-density output
Output signal: 4-20 mA (default), which can be configured by software as 0-20 mA
Load capacity: Maximum 750 Ω (@24V DC)
Output accuracy: ±0.1% of span (typical value, 25°C)
HART writing function (industry-leading) :
Support writing commands (such as set points, damping time, and range) to HART devices connected to each channel
Compatible with HART 5/6/7 protocol, suitable for intelligent valve positioners (such as ABB TZIDC, YTC, etc.)
HART data goes directly to the field equipment without the need for an additional communication gateway
Spring terminal tool-free wiring
Push-in technology, supporting 0.14-2.5mm ² (26-12 AWG) wires
Anti-vibration and anti-loosening, significantly reducing installation and maintenance time
Technical parameters
| Model Number | AO845A |
| Manufacturer | ABB |
| Product Type | Analog Output Module |
| Compatible Controller | ABB AC 800M Series (part of S800 I/O family) |
| Number of Output Channels | 8 |
| Mounting | DIN rail (EN 50022 compliant) |
| Operating Temperature | 0°C to +60°C (+32°F to +140°F) |
| Storage Temperature | –40°C to +85°C (–40°F to +185°F) |
| Humidity | 5% to 95% relative humidity, non-condensing |
| Weight | Approx. 480 g (1.06 lb) |
Product Images
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