Part Number: 3BHE027632R0101; Product Name: Industrial Serial Communication Board
Brand: ABB (ABB Group, a Global Leader in Power and Automation Technologies for Industrial Applications)
Product Status: Original New Unit; Product Category: Serial Communication Expansion Board, Specifically Designed for ABB Distributed Control Systems (DCS) and Industrial Control Panels
Core Features: Dual serial communication ports for multi-device connection; Strong anti-electromagnetic interference (EMI) performance; Wide compatibility with ABB native control systems; Compact design for cabinet-mounted installation; Built-in fault detection and signal monitoring functions; Optically isolated signal transmission for enhanced stability.
2. Electrical & Communication Specifications (Ta = 25℃, Unless Otherwise Specified)
2.1 Electrical Parameters
Supply Voltage: DC 24V (±10% Tolerance); Rated Operating Current: 250mA (Typical), 450mA (Peak);
Power Consumption: ≤10.8W (Typical, Full Load Operation); Insulation Resistance: ≥100MΩ (500V DC);
Input/Output Signal Isolation: Optically Isolated (2.5kVrms, Persistent for 1 Minute); Logic Level: TTL/RS-485/RS-232 Configurable;
Signal Response Time: ≤2μs; Operating Frequency Compatibility: 50/60Hz (System Power Synchronization).
2.2 Communication Performance
Communication Ports: 2 x RS-485/RS-232 Selectable Ports (Duplex, Configurable via Jumper);
Supported Protocols: Modbus RTU, ABB Proprietary Communication Protocol, Profibus DP (Slave Mode);
Baud Rate: Configurable (9.6Kbps, 19.2Kbps, 38.4Kbps, 115.2Kbps, 187.5Kbps); Parity Check: None, Odd, Even (Selectable);
Data Bits: 7/8 Bits (Configurable); Stop Bits: 1/2 Bits (Configurable); Maximum Number of Connected Nodes: 32 Nodes per RS-485 Port;
Communication Distance: Up to 1200m (RS-485 Mode, Using Shielded Twisted Pair Cable); Frame Error Rate (BER): ≤10⁻¹² (At Rated Communication Distance).
2.3 Protection Functions
Overcurrent Protection (OCP): Triggered When Operating Current Exceeds 700mA, Automatic Recovery After Fault Removal;
Undervoltage Protection (UVP): Triggered When Supply Voltage ≤19.2V, Fault Alarm Output via Digital Signal;
Overheating Protection (OTP): Triggered When Board Temperature ≥70℃, Reduced Power Consumption Mode Activated;
Additional Protection: Reverse Polarity Protection (Power Input), Short-Circuit Protection (Signal Ports), ESD Protection for Communication Interfaces.