Compact IO Module AI-8-C

Analogue input module, 8 inputs.

• Screwless installation with click-on DIN-rail communication bus and power connectors
• Push-in spring connectors for cables
• Individually detachable terminal blocks per channel

The 8-channel analogue input module is used to read input signals from active and passive sensors. Its 8 individually configurable channels can read data from resistive sensors, current loops, voltage messages, and digital indications.
Poll the module from a serial Modbus master controller to get reliable, accurate, precise, and fast readings from your field equipment.

T Bus connecter (Terminal C) required for MODBUS + and - connection along with other supply voltage 24VDC and consumes 15mA.
If more than 1 module is being installed, you only need one terminal connector, if connecting say 10 of the same or different modules, only one T Bus connector is required.

Communication: Modbus RTU (RS485) at speeds up to 57600 bps. Use no parity, 8 data bits and 1 stop bit. The module will auto-detect the communication speed of the bus (9600, 19200, 38400 or 57600 bps).
Modbus address: The address of the module can be set from 1 to 63 by changing the position of dip-switches 1-6. Each dip-switch represents a binary value, as indicated on the module and datasheet.
Modbus loop termination: On the last module, the Modbus loop must be closed by connecting a 120 Ω resistor between the A and the B side of the RS-485 loop.

AI-8-C Fidelix Analog in module

– 8 analog inputs
– Measurement of resistance, voltage or current
– 20-bit A/D converter
– Pluggable connection terminals
– RS-485 communication with Modbus protocol

The AI-8-C module is used to read input signals from active and passive sensors.
Its 8 individually configurable channels can read data from resistive sensors, current loops, voltage signals and digital signals.
Quick and easy installation as the power supply and communication are integrated into the DIN rail.

Watch the YouTube video: AI-8-C youtube

Technical information
Supply voltage: 24VDC (+/- 10%)AI-8-C Fidelix
Current consumption: <25 mA
Ambient operating temperature: 0 to +40 ºC
Ambient humidity operation: Max 95%RH, non-condensing
Module size: 134 mm x 78 mm x 19 mm
Module weight: 90 g
Protection class: IP20 Communication speed: 9600 bps, 19200 bps, 38400 bps or 57600 bps
Address range: 1 – 63
Communication protocol: Modbus RTU
Resolution: 20 bits
Sensor types: NTC, PT1000, Ni1000, 0..20mA, 4..20mA, 0–10V, 2–10V
Current at resistive sensors: 0.58 mA at 1 kΩ, 0.22 mA at 10 kΩ

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  • FdxCompact IO module specifications
  • FdxCompact IO-modules connection
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  • Modbus Registers
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