MTL 8121-DI-DC-01 16-Channel Discrete Input Module

Description

The MTL 8121-DI-DC-01 is a 16-channel discrete input module designed for high-speed digital signal acquisition in industrial automation systems. It supports dry contact switches and pulse counting, making it suitable for demanding control environments including hazardous areas.

Specifications

• Model: MTL 8121-DI-DC-01

• Input Channels: 16 discrete inputs

• Input Type: Dry contact switches (source type)

• Input Voltage Range: 18–30 VDC

• ON Current Threshold: >1.2 mA

• OFF Current Threshold: <0.3 mA

• Wetting Current: 2.8 mA typical

• Minimum Pulse Width: 5 ms

• Max Frequency (Pulse Mode): 100 Hz (no debounce)

• Isolation: 250 VAC channel-to-Railbus

• Selectable Input Filter: Fast, slow, or user-defined (0–512 ms in 2 ms steps)

• Latch Inputs: Enable / Disable

• Latch Polarity: Latch on high / latch on low

• Pulse Counting: Enable / Disable

• I/O Response Time: ≤ 5 ms from field event to Railbus update

• Railbus Power Consumption: 90 mA typical, 135 mA max

• Field Power Requirement: 60 mA @ 18–30 VDC

• Module Width: 42 mm

• Dimensions: 100 mm × 100 mm × 12 mm

• Weight: 210 g

• Safety Compliance: FM non-incendive field wiring parameters

• Mounting Options: DIN rail or flat panel via PAC8000 carrier

Features

• High-Speed Input Acquisition: Captures digital signals with ≤ 5 ms response time

• Pulse Counting Capability: Supports high-frequency input monitoring up to 100 Hz

• Flexible Filtering Options: Adjustable debounce settings for signal conditioning

• Latch Functionality: Configurable input latching for event retention

• Robust Isolation: 250 VAC isolation enhances safety and system integrity

• Hazardous Area Ready: FM-approved for non-incendive field wiring

• Compact Design: Slim module profile for space-constrained installations

• Modular Integration: Seamlessly fits into PAC8000 I/O systems for scalable control