Schneider 172PNN21022 Modbus Plus Option Adapter

Overview

The 172PNN21022 is a Modbus Plus Option Adapter designed specifically for the Modicon Momentum automation platform. It enables fast and reliable communication between programmable logic controllers (PLCs) and other devices over the Modbus Plus network. This adapter supports industrial automation systems that demand robust and continuous data exchange. It mounts directly on the I/O base and communicates via a single 9-pin D-shell connector. The device operates on 5 V DC power supplied through the I/O base and includes a lithium battery backup to maintain accurate clock operation during power loss.

Technical Specifications

Product Type:

• Modbus Plus Option Adapter

Platform Compatibility:

• Modicon Momentum automation platform

Communication Protocol:

• Modbus Plus

Communication Ports:

• 1 × 9-pin D-shell connector

Supply Voltage:

• 5 V DC (via I/O base)

Input Voltage Tolerance:

• ±5%

Current Consumption:

• ≤ 350 mA @ 24 V DC (maximum)

• Typically 200 mA @ 24 V DC

Battery:

• Type: Lithium (2/3 AA size)

• Life: Approx. 5 years

• Backup Autonomy: Up to 30 days after low battery warning at 40°C

Clock Accuracy:

• ±13 seconds per day

Material:

• Impact-resistant Lexan plastic

Local Signaling:

• 1 LED indicating communication status

Dimensions (H × W × D):

• 0.98 × 5.63 × 2.36 inches (25 × 143.1 × 60.06 mm)

Net Weight:

• 85.05 g (0.19 lb)

Mounting:

• On-board installation with I/O base

Environmental Conditions:

• Operating Temperature: 0 to 60 °C (32 to 140 °F)

• Storage Temperature: -40 to 85 °C (-40 to 185 °F)

• Relative Humidity: 5 to 95% (non-condensing)

• Operating Altitude: ≤ 2000 m (6561.68 ft)

Electrical and Mechanical Resistances:

• Dielectric Strength: 500 V DC

• Shock Resistance: ±15 g, 11 ms half sine wave

• Vibration Resistance: 1 g (57–150 Hz), 0.075 mm amplitude (10–57 Hz)

• Electrostatic Discharge: 4 kV contact, 8 kV air (IEC 801-2)

• Electromagnetic Field Resistance: 10 V/m (80–1000 MHz, IEC 801-3)