BACHMANN AIO216 Analog I/O Module – 16-Channel Universal Input for M1/M2 Automation Systems

The BACHMANN AIO216 (part number often listed as 140857) is a high-performance, 16-channel analog input module designed for use within Bachmann’s M1 and M2 distributed control system platforms. Widely deployed in demanding sectors such as wind energy, marine automation, hydroelectric plants, and industrial machinery, the AIO216 provides precise, simultaneous acquisition of analog process signals—including voltage (±10 V), current (0/4–20 mA), resistance (RTD), and thermocouple inputs—making it a versatile cornerstone for real-time monitoring and closed-loop control.

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Description

The BACHMANN AIO216 (part number often listed as 140857) is a high-performance, 16-channel analog input module designed for use within Bachmann’s M1 and M2 distributed control system platforms. Widely deployed in demanding sectors such as wind energy, marine automation, hydroelectric plants, and industrial machinery, the AIO216 provides precise, simultaneous acquisition of analog process signals—including voltage (±10 V), current (0/4–20 mA), resistance (RTD), and thermocouple inputs—making it a versatile cornerstone for real-time monitoring and closed-loop control.

Engineered for reliability in harsh environments, the BACHMANN AIO216 features channel-to-channel electrical isolation, 16-bit ADC resolution, and configurable input ranges per channel via software—eliminating the need for external signal conditioners. It communicates over Bachmann’s deterministic EtherCAT-based backplane or SBus+ protocol, ensuring low-latency data transfer to the central M1 CPU (e.g., MC2x3 or MC410). With support for hot-swapping and automatic module recognition, the AIO216 minimizes downtime during maintenance or system expansion, aligning with modern predictive maintenance and modular automation philosophies.

Technical Specifications

Parameter Name Parameter Value
Model Number AIO216 (Typical P/N: 140857)
Manufacturer Bachmann Electronic GmbH
Module Type 16-Channel Universal Analog Input
Supported Input Types ±10 V, 0–10 V, 0/4–20 mA, Pt100/Pt1000 RTD, J/K/T/E/N/R/S/B thermocouples
Input Resolution 16 bits (per channel)
Sampling Rate Up to 1 kHz per channel (configurable)
Isolation 500 VDC channel-to-channel and channel-to-backplane
Accuracy ±0.1% of full scale (typical)
Operating Temperature -25°C to +60°C (extended versions available)
Power Consumption ~3.5 W (from backplane)
Mounting DIN rail or M1 rack slot (standard 35 mm width)
Communication Interface SBus+ (for M1 systems) or EtherCAT (in M2 architecture)
Certifications CE, UL, DNV-GL (marine), ATEX (optional variants)

Main Features and Advantages

Universal per-channel configuration: Each of the 16 inputs can be independently configured via Bachmann’s Automation Studio software—no jumpers or DIP switches required. Mix voltage, current, and temperature sensors on the same module.

High noise immunity & precision: With galvanic isolation and differential inputs, the AIO216 rejects common-mode noise from VFDs, generators, or switching power supplies—critical in wind turbine nacelles or shipboard engine rooms.

Seamless integration with M1 ecosystem: Auto-detection during boot-up, integrated diagnostics, and synchronized sampling across multiple I/O modules enable complex control strategies like blade pitch balancing or load sharing.

Robust for extreme conditions: Conformal-coated PCBs, wide temperature tolerance, and marine-grade approvals make the AIO216 suitable for offshore platforms, arctic wind farms, and tropical hydropower stations.

Future-proof scalability: As part of Bachmann’s modular M1 platform, the AIO216 can coexist with digital I/O (DIO216), communication gateways (COM212), and safety modules (STO202)—all managed from a single engineering environment.

Application Field

The BACHMANN AIO216 is a workhorse in applications requiring high-fidelity analog data from rotating or process-critical equipment:

  • Wind Turbines: Measures generator winding temperature (RTD), gearbox oil pressure (4–20 mA), vibration sensor output (±10 V), and ambient conditions—feeding data to pitch/yaw controllers.
  • Marine Vessels: Monitors main engine exhaust gas temperature (thermocouples), fuel flow (current loop), and ballast tank levels in DNV-certified automation systems.
  • Hydroelectric Plants: Acquires wicket gate position feedback, bearing temperature, and penstock pressure for governor control and protection logic.
  • Industrial Test Benches: Captures strain gauge, torque transducer, and encoder reference signals during R&D validation of motors or gearboxes.
  • Rail & Mining: Used in traction control and conveyor monitoring where EMI resilience and long-term stability are non-negotiable.

Related Products

  • AIO208: Older 8-channel analog input module; lower density.
  • AIO232: 32-channel variant for ultra-high-density applications.
  • DIO216: 16-channel digital input/output companion module.
  • MC410 / MC233: Bachmann M1 CPU controllers that host the AIO216.
  • COM212: Communication module for Modbus TCP, PROFINET, or CANopen gateway functions.
  • Automation Studio: Official IDE for configuring, programming, and diagnosing AIO216-based systems.
  • TB-AIO216: Terminal block base unit (required for field wiring).
  • AIO216-Ex: Hazardous-area version for ATEX/IECEx Zone 2 installations.

Installation and Maintenance

🔧 Installation Tips:

  • Always install the AIO216 into a powered-off M1 rack or use hot-swap procedures if supported by the chassis.
  • Use shielded, twisted-pair cables for analog signals; ground shields at the controller end only.
  • Pair with the correct terminal base (e.g., TB-AIO216) to ensure secure screw-terminal connections.
  • Assign unique module addresses via hardware DIP switches (if required by firmware version).

🛠️ Maintenance Recommendations:

  • Monitor channel health via Automation Studio’s diagnostic viewer—look for open-circuit RTDs or out-of-range currents.
  • Periodically verify calibration using a precision signal generator, especially in safety-critical loops.
  • Keep firmware updated to benefit from improved filtering algorithms or extended sensor type support.
  • Store spares in anti-static bags at 10–30°C and <60% RH to preserve component integrity.