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ABB AO845A Ability™ System 800xA® hardware selector
Source: | Author:kongjiang | Published time: 2025-06-30 | 10 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
AO845A ABB Ability™ System 800xA® hardware selector

The AO845/AO845A Analog Output Module for single or redundant applications has 8 unipolar analog output channels. The module performs self-diagnostic cyclically. Module diagnostics include:

External Channel Error is reported (only reported on active channels) if the process power supply that supply voltage to output circuitry is too low, or the output current is less than the output set value and the output set value > 1 mA (open circuit).

Internal Channel Error is reported if the output circuit can not give the right current value. In a redundant pair the module will be commanded to error state by the ModuleBus master.

Module Error is reported in case of Output Transistor Error, Short Circuit, Checksum Error, Internal Power Supply Error, Status Link Error, Watchdog or Wrong OSP behavior.

Features and benefits

 8 channels of 4...20 mA 

 For single or redundant applications 

 1 group of 8 channels isolated from ground 

 Analog inputs are short circuit secured to ZP or +24 V 

 HART pass-through communication

Related products

TU810V1   TU812V1
TU814V1   TU830V1 

TU833  TU842

TU843  TU852

Close to us.

This is our main brand, mainly engaged in PLC DCS module card category, Bently Nevada, HONEYWELL, ABB, Cogison Triconex, SCHNEIDER Schneider, GE, Emerson, Yokogawa Yokogawa, Fuji, Westinghouse vationo, AB, HIMA Dark Horse, epro, ICS, BACHMANN, WOODWARD Woodward, Siemens, Foxboro.

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