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This module is a 6-channel isolated discrete input module designed for reliable status and contact signal monitoring in industrial and hazardous environments. It supports both dry contact inputs (external power supply) and wet contact inputs (24 VDC), offers flexible sinking/sourcing input configurations, and communicates via Modbus RTU with support for LinkNet distributed I/O networks. The module is well suited for turbine control and protection systems.

Key Technical Specifications

Discrete Input

Input channels: 6 independent channels

Input types:

Dry contacts (external power supply)

Wet contacts (24 VDC)

Input mode: Sinking (leakage) / sourcing selectable

Electrical isolation: 1500 Vrms channel-to-channel isolation

Signal Processing & Diagnostics

Contact state monitoring (ON/OFF)

Signal filtering to suppress contact bounce and noise

Channel-level diagnostics for fault detection

Communication

Protocol: Modbus RTU

Network compatibility: LinkNet distributed I/O network

Power Supply

Operating voltage: 18–32 VDC

Power consumption: ≤ 2.8 W

Integrated 24 VDC circuit power supply

Physical Characteristics

Dimensions (approx.): 140 × 110 × 40 mm

Weight (approx.): 450 g

Environmental & Compliance

Operating temperature range: −40 ℃ to +55 ℃

Hazardous area rating: Class I, Division 2 explosion-proof

Designed for cabinet and field installations

Core Functions

Reliable discrete contact state acquisition

Flexible support for dry and wet contact inputs

Channel-to-channel electrical isolation for enhanced system robustness

Input filtering for improved noise immunity and signal stability

Built-in channel diagnostics to support predictive maintenance

Compatible with GE LM series gas turbine applications