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AO845A 3BSE045584R1 | ABB | Redundant Analog Output Digital I O Module

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AO845A 3BSE045584R1 | ABB | Redundant Analog Output Digital I O Module

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Brand Name : ABB

Model Number : AO845A

Place of Origin : Switzerland

MOQ : 1

Price : Negotiations

Delivery Time : 2-3 working days

Packaging Details : New original box

Rated Insulation Voltage : 50V

Dielectric Test Voltage : 500VAC

Current Consumption +5 V Modulebus : 70mA

Power Dissipation : 1.6W

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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


General info
Type Analog Output
Signal specification 4..20mA
Article number 3BSE045584R1
Number of channels 8
HART Yes
SOE No
Redundancy Yes
High integrity No
Intrinsic safety No
Mechanics S800


Detailed data
Resolution 12 bit
Isolation Groupwise isolated from ground
Under/over range ±15%
Output load Max 750 Ω
Error Max. 0.1%
Temperature drift Max. 50 ppm/°C
Rise Time Output filter: Disable 23 ms, Enable max 4 mA / 12.5 ms
Input filter (rise time 0-90%) 23 ms (0-90%), max 4 mA / 12.5 ms
Update cycle time 10 ms
Current limiting Short circuit proof current limited output
Maximum field cable length 600 meters (656 yards)
Rated insulation voltage 50 V
Dielectric test voltage 500 V a.c.
Power dissipation Typ. 3.5 W
Current consumption +5 V Modulebus Max. 125 mA
Current consumption +24 V external 218 mA


Environment and certification
CE mark Yes
Electrical safety IEC 61131-2, UL 508
Hazardous Location C1 Div2 cULus, C1 Zone2 cULus, ATEX Zone 2
Marine certification BV, DNV-GL, LR
Protection rating IP20 according to IEC 60529
Corrosive atmosphere ISA-S71.04 G3
Climatic operating conditions 0 to +55 °C (Storage -40 to +70 °C), RH=5 to 95 % no condensation, IEC/EN 61131-2
Pollution degree Degree 2, IEC 60664-1
Mechanical operating conditions IEC/EN 61131-2
EMC EN 61000-6-4 and EN 61000-6-2
Overvoltage categories IEC/EN 60664-1, EN 50178
Equipment class Class I according to IEC 61140; (earth protected)
Max ambient temperature 55 °C (131 °F), for vertical mounting in compact MTU 40 °C (104 °F)
RoHS compliance EN 50581:2012
WEEE compliance DIRECTIVE/2012/19/EU



Product Tags:

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