AO208/I Bachmann Analog Output Module | New & Original Stock
Manufacturer: Bachmann
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Part Number: AO208/I
Condition：New with Original Package
Product Type: Analog Output Modules
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Country of Origin: Austria
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Bachmann AO208/I Analog Output Module
The Bachmann AO208/I serves as the primary AO208/I Analog Output Module utilized to execute [Specific Technical Task] across Bachmann M1 platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AO208/I |
| Brand | Bachmann |
| Origin | Austria |
| Weight | 0.35 to 0.45 kg |
| Dimensions | 130 mm x 25 mm x 150 mm |
| Operating Temp | -30 to +60 deg C |
| Power Consumption | 5 W |
| Output Channels | 8 isolated analog outputs |
| Signal Formats | Current: 0-20 mA, 4-20 mA | Voltage: 0-10 V, +/-10 V |
| Resolution | 12-bit or 16-bit Digital-to-Analog Converter (DAC) |
| Conversion Accuracy | +/-0.1% of full scale |
| Galvanic Isolation | Channel-to-system up to 1500 V RMS |
| Cycle Update Rate | < 5 ms |
| Loop Load Capacity | Current: up to 500 Ohm | Voltage: up to 10 kOhm |
| Diagnostic Visuals | Onboard self-diagnostics with channel status LEDs |
| Storage Temperature | -40 to +85 deg C |
| Humidity Range | 5% to 95% RH, non-condensing |
Backplane Bus Communication and I/O Density Scaling
The AO208/I processes variable setpoints via the standard backplane bus communication velocity link of the Bachmann M1 architecture, enforcing deterministic data transfer loop updates within sub-5 ms intervals. This internal processing path allows rapid I/O density scaling without degrading the conversion synchronization of the 8 isolated channels. Integrated system logic manages firmware flash compatibility parameters across the internal microcontrollers, matching standard DAC scaling curves to physical current and voltage configurations. The 1500 V RMS galvanic isolation barrier separates the sensitive digital processing core from external field devices, suppressing systemic common-mode noise and ground loops during continuous switching profiles.
Frequently Asked Questions
Q: Are there operational restrictions regarding the hot-swap function of the AO208/I module on the M1 backplane?
A: The hardware supports active mechanical extraction and insertion while the backplane bus remains energized. However, hot-swapping must be restricted until external field loops are de-energized to prevent inductive voltage transients from damaging the output DAC circuitry during uncoupling.
Q: How does the module handle output drive calibration when switching between voltage and current modes?
A: Mode matching and scaling adjustments are executed through software parameters defined in the controller configuration utilities. Internal firmware flash compatibility blocks ensure that full-scale loop calibration factors adjust automatically to enforce the +/-0.1% accuracy threshold based on the selected current or voltage array.
Field Installation Guidelines
- DIN Rail Alignment and Grounding: Attach the module onto a standard symmetrical steel DIN rail inside an industrial-grade panel. Ensure the integrated rear mounting spring contacts the unpainted metal surface of the rail to form a functional earth path.
- Thermal Convection Clearance: Provide a minimum clear vertical boundary of 50 mm above and below the module housing to allow continuous natural convective airflow across the fanless outer casing.
- Field Wiring Terminations: Use stranded conductors protected by crimped ferrules for all analog loop connections. Keep all 4-20 mA and +/-10 V low-voltage analog cables separated from AC power distributions and motor control lines by at least 300 mm to suppress inductive interference.
- Shield Grounding Terminal Layout: Clamp all twisted-pair instrumentation shields to a dedicated low-impedance copper master ground bar inside the cabinet enclosure. Do not route shields through multiple earth connections to eliminate ground loop current issues.