The FIOD series products add digital capability to your PLC / SCADA.
FIOD-0808-C-B model has 8 Digital Input and 8 Digital Output NPN Types. The outputs are isolated from the host device.
It has one (2 Wire RS485) communication port. The COM port is used to connect any Modbus master device
(PLC / SCADA / Operator Interface device). This module supports Modbus RTU (Slave) protocol.

Product Description: RENU FIOD 0808 C B Analog Input Module

1. Basic Identification & Function

• Manufacturer: RENU Electronics (A well-known rebuilder and supplier of industrial automation components). This is a refurbished/remanufactured part.

• Original Part Number: The “FIOD” and “0808” designation strongly suggests an original part from a major manufacturer like ABB (e.g., from their Advant or 800xA series). The “RENU” prefix indicates it has been professionally rebuilt and tested to meet or exceed original specifications.

• Type: Analog Input Module

• Function: This module acts as the interface between the central control system (like a DCS or PLC) and analog field devices. It receives low-voltage signals from sensors in the field and converts them into digital values that the control system can understand and process.

• Revision: A4 – This indicates the specific hardware revision or version of the module.

2. Key Specifications (Decoding the Model Number)

While exact specifications should always be verified with the manufacturer’s datasheet, the model number “0808 C B” provides strong clues:

• FIOD: Likely stands for Field Input/Output Device.

• 0808: Typically indicates the channel configuration. In this context, it almost certainly means 8 analog input channels.

• C: Often denotes the type of input signal the module accepts. Common interpretations include:

  • Voltage/Current Inputs: Capable of accepting standard analog signals like 0-10V, ±10V, 0-20mA, or 4-20mA.

  • “C” might also specify a particular input range or isolation level.

• B: This suffix usually indicates a specific product variant, housing type, or connector style (e.g., a removable terminal block).

3. Typical Technical Characteristics

• Channels: 8 single-ended or 4 differential (configurable).

• Input Signals: Compatible with standard process signals:

  • 4-20 mA (most common for process control)

  • 0-20 mA

  • 0-10V DC

  • ±10V DC

  • Thermocouple (T/C) or RTD signals (less common on a general-purpose module, but possible with specific configuration).

• Resolution: Typically 12-bit to 16-bit, providing high accuracy for process measurement.

• Isolation: Channel-to-channel and channel-to-system isolation to prevent ground loops and electrical noise interference.

• Connections: Via a removable screw terminal block or a dedicated connector on the front of the module.

• Diagnostics: Includes features for detecting wire breaks, short circuits, and out-of-range signals on the 4-20mA loops.

4. Common Applications

This module is used in a wide range of industrial and process control applications to monitor and control physical parameters, such as:

• Temperature (via transmitters)

• Pressure

• Flow Rate

• Level

• Valve Position

• Speed

• Analytical Values (pH, conductivity, etc.)

5. RENU Electronics Value Proposition

Purchasing a RENU part means you are getting a remanufactured module. The benefits include:

• Cost Savings: Significant discount compared to a new OEM part.

• Quality & Reliability: The module has been disassembled, cleaned, tested, and had any worn or failed components replaced.

• Warranty: RENU typically provides a robust warranty, often comparable to new parts.

• Availability: Faster delivery than a long-lead-time new part.

• Sustainability: Supports environmental efforts by reusing core components.

6. System Compatibility

This module is designed to plug into a specific I/O rack or baseplate. Common compatible systems include:

• ABB Advant OCS (Open Control System)

• ABB AC 800M I/O stacks (like the S800 series)

• ABB 800xA and Symphony Plus control systems