ABB 216EA61b (Order No.: HESG448230R1/G or HESG324015R1)

Model: 216EA61b (commonly written as 216EA61B)

Order No.: HESG448230R1/G (Mainstream) / HESG324015R1 (Alternative)

Type: ABB Symphony Plus DCS / High Voltage Direct Current (HVDC) System Digital Input Module

## I. Basic Information

Brand / Origin: ABB (Originally Manufactured in Switzerland / Germany)

Series: 216E Series (Dedicated I/O for Symphony Plus DCS and HVDC Converter Valves)

Functional Positioning: 16-channel digital input, high-voltage isolation, signal acquisition and status monitoring; compatible with thermal power, metallurgy and HVDC converter stations

Compatible Systems: Symphony Plus DCS, HVDC Converter Valve Control Unit, AC800M Controller

## II. Core Technical Parameters

### 1. Input Specifications

Number of Channels: 16 channels (24V DC, sourcing / sinking selectable)

Input Level: High level 15–30V DC, Low level 0–5V DC

Isolation Withstand Voltage: 1500V AC (Between I/O and system)

Response Time: ≤1ms per point

### 2. Electrical and Power Consumption

Power Supply: 24V DC (18–32V DC), backplane powered

Power Consumption: ≤10W (Full load)

Protection: Over-current / Over-voltage / Short-circuit protection, channel-level fault diagnosis

### 3. Environmental and Physical Characteristics

Operating Temperature: -20℃ ~ +60℃ (Wide temperature version: -40℃ ~ +70℃)

Storage Temperature: -40℃ ~ +85℃

Humidity: 5%–95% (Non-condensing)

Ingress Protection: IP20 (Main body), IP65 enclosure optional

Dimensions (Width × Height × Depth): Approx. 120 × 80 × 62 mm

Weight: Approx. 450g

### 4. Communication and Diagnosis

Fieldbus: PROFIBUS DP/V1, Modbus RTU

Diagnosis: Real-time reporting of channel status, communication faults and power supply abnormalities

## III. Model Definition

216EA61b

216: 216E Series I/O Module

E: Enhanced Type (High-voltage Isolation + Wide Temperature)

A: Digital Input

61: 16 Channels, 24V DC

b: Hardware Version (Version B)

HESG448230R1/G: Original Part Number; R1 = First Hardware Revision, G = Compatible with HVDC / Drive Systems

## IV. Typical Applications

HVDC Converter Valve Control: Valve bank status monitoring, trigger signal feedback and fault interlocking in high-voltage DC transmission systems

Thermal / Nuclear Power DCS: Discrete signal acquisition (valve, pump and fan status) and safety interlocking for Symphony Plus systems

Metallurgy / Mining: Equipment status monitoring, limit signal acquisition and emergency stop interlocking under high temperature and high humidity environments