# 1. Basic Information

Model: D0137AV

Brand: Foxboro (Schneider Electric / Invensys)

Type: DCS Processor Board / Main Control Board (ISA Architecture)

Applicable System: Early 100 Series DCS of I/A Series

Status: Discontinued, only refurbished spare parts available

Origin: United States

# 2. Core Hardware Parameters (Measured / Disassembled Test)

Processor: 4×AMD AM2901B 4-bit Bipolar Bit-Slice Processor

Microprogram Controller: 3×AMD AM2909 Microprogram Sequencer

Clock: 10.0 MHz Crystal Oscillator

Architecture: ISA Standard Board Form Factor

Power Supply: +5V / ±12V (Backplane Powered)

Power Consumption: Approximately 12W

Operating Temperature: 0°C ~ +55°C

Dimensions: Standard ISA Card (Approx. 330mm×120mm)

Weight: Approximately 0.8kg

### III. Functional Positioning

System Core Control Board: The main control unit for early I/A Series controllers (e.g., CP10/CP30).

**Control Capabilities:**

- Maximum capacity: 48 FBM (Fieldbus Module) field I/O modules.

- Fastest scan cycle: 0.1 seconds.

- Processing capacity: Approximately 300 control function blocks per second.

**Communication:** Supports the proprietary I/A Series fieldbus (1 Mbps) and control network.

### IV. Usage Instructions (Key Points, Common for the Series)

#### Installation

1. Insert into an ISA slot of the I/A Series 100 Series controller chassis.

2. Secure the bracket to ensure full contact of the **gold fingers**.

3. Install vertically with a ventilation clearance of ≥ 50mm.

#### Wiring

- Backplane power: +5V/±12V; no additional wiring required.

- Fieldbus: Shielded twisted pair, single-ended grounded, maximum length 1000m.

#### Configuration

- Use early I/A Series configuration software (e.g., legacy Control Builder).

- The board is automatically recognized, and FBM addresses are assigned.

#### Indicators (on the side of the board)

- **PWR (Green):** Power normal.

- **RUN (Green):** Operating normally.

- **FAULT (Red):** Fault (communication/hardware error).

#### Maintenance

- No hot-swap support; replace during shutdown.

- Regularly clean gold fingers and inspect backplane connections.

- Spare parts are recommended for backup, as new units are no longer available.

### V. Replacement Models

- **Direct Replacements:** CP60 (P0961FR), FCP270/FCP280 (mainstream).

- **Upgrade Recommendation:** Replace the entire system with an FCP280 + 200 Series FBM, while retaining existing field wiring.