MTL Instruments|8123-PL-QU| Isolated Discrete Input Module

MTL 8123-PL-QU Isolated Discrete Input Module

Description
MTL 8123-PL-QU isolated sinking discrete input module for 24 V dc field signals, featuring user-defined thresholds and pulse counting.

Features

• 8 isolated sinking inputs
• Compatible with 24 V dc field sources
• User-definable input filter and latch
• Pulse counting capability
• Bussed field power not required

Technical Specifications

• Channels: 8
• Input Type: Isolated, sinking
• Voltage Levels:
  • OFF: < 3.2 V dc
  • ON: > 11 V dc
  • Max Input: 30 V dc
  • Reverse Input: –25 V dc
• Wetting Current: 6.3 mA (nominal @ 24 V dc)
• Pulse Detection:
  • Minimum Pulse Width: 3 ms
  • Max Frequency (no-filter): 200 Hz
• Response Time: ≤ 3 ms (field event to Railbus)
• Isolation:
  • Channel to Railbus: 250 V ac (typ.)
• Configurable Settings:
  • Input Filter: Fast, slow, or user-defined (0–512 ms in 2 ms steps)
  • Latch: Enable/Disable, polarity selectable
  • Pulse Counting: Enable/Disable
• Safety (FM Non-incendive):
  • Vmax = 30 V, Imax = 100 mA
  • Ci = 0 μF, Li = 0 mH (per channel)
• Power Requirements:
  • Railbus (12 V): 35 mA (typ.), 55 mA (max.)
  • Bussed Field Power: Not required
• Mechanical:
  • Module Width: 42 mm
  • Weight: 170 g
  • Key Code: B2