1. General Information

1.1 Product Overview

1.2 Key Features

• Multi-Signal Compatibility: Supports analog (4–20 mA, 0–10 V), digital (24 V DC), and RS-485 serial inputs.

• High Precision: 16-bit resolution with ±0.1% full-scale accuracy.

• Signal Conditioning: Built-in filtering, amplification, and isolation for noise immunity.

• Industrial Durability: Rugged construction for harsh environments.

• Easy Integration: Standard DIN rail mounting and software-configurable parameters.

1.3 Specifications

• Model: 1172C25

• Manufacturer: Emerson

• Input Types: Analog, Digital, RS-485

• Resolution: 16-bit

• Accuracy: ±0.1% FS

• Power Supply: 24 V DC ±10%, 150 mA

• Operating Temperature: -25°C to +60°CEmerson

• Storage Temperature: -40°C to +85°CEmerson

• Humidity: 5%–95% RH (non-condensing)Emerson

• Isolation: 1500 V DC (input-to-power)

• Dimensions: 120 mm × 80 mm × 25 mm

• Weight: 350 g

2. Safety Precautions

• Installation: Only qualified personnel should install and service this module.

• Power Off: Disconnect all power before wiring to avoid electric shock.

• Environment: Avoid explosive, corrosive, or conductive dust environments.

• Ventilation: Maintain 25 mm clearance around the module for coolingEmerson.

• Cable Routing: Separate signal and power cables to reduce interference.

• Grounding: Connect the module’s ground terminal to a reliable earth ground.

3. Installation

3.1 DIN Rail Mounting

1. Ensure the DIN rail is clean and securely mounted.

2. Align the module’s top hooks with the rail.

3. Press the module downward until it snaps into place.

4. Verify the module is firmly attached and cannot be moved.

3.2 Wiring

3.2.1 Terminal Assignment

3.2.2 Wiring Steps

1. Strip 6 mm of insulation from cable ends.

2. Loosen terminal screws with a small screwdriver.

3. Insert wires into the correct terminals.

4. Tighten screws to 0.5–0.6 N·m torque.

5. Secure cables with cable ties to prevent strain.

4. Configuration

4.1 Software Setup

1. Connect the module to a PC via the RS-485 port.

2. Install Emerson’s configuration software (e.g., DeviceManager).

3. Launch the software and select “1172C25” from the device list.

4. Click “Connect” to establish communication.

4.2 Parameter Configuration

• Analog Inputs:

  • Set input type (4–20 mA or 0–10 V).

  • Configure range (e.g., 0–100°C, 0–50 bar).

  • Enable/disable filtering (0–100 Hz).

• Digital Inputs:

  • Set logic (NPN/PNP).

  • Configure debounce time (0–500 ms).

• RS-485:

  • Baud rate: 9600 bps (default).

  • Data bits: 8, Stop bits: 1, Parity: None.

  • Slave address: 1–247.

4.3 Save Configuration

1. After setting parameters, click “Save” in the software.

2. Disconnect the module from the PC.

3. Power cycle the module to apply changes.

5. Operation

5.1 Power-Up

1. Apply 24 V DC power to the module.

2. The POWER LED will illuminate green.

3. The module will perform a self-diagnostic check (takes ~2 seconds).

4. If normal, the STATUS LED will flash green; if faulty, it will flash red.

5.2 Normal Operation

• Analog Inputs: The module converts analog signals to digital data and transmits it to the controller.

• Digital Inputs: The module detects high/low states and updates the controller in real time.

• RS-485 Communication: The module communicates with the controller using the Modbus RTU protocol.

6. Maintenance

• Regular Inspection: Check wiring terminals for tightness and corrosion every 6 months.

• Cleaning: Use a dry cloth to clean the module surface; do not use liquids.

• Firmware Updates: Check Emerson’s website for the latest firmware and update via the configuration software.

• Replacement: If the module is faulty, replace it with the same model and reconfigure parameters.

7. Troubleshooting

8. Ordering Information

• Model: 1172C25

• Accessories: RS-485 cable, DIN rail mounting kit

• Replacement Parts: Terminal blocks, LEDs