SIGMATEK DDM163

Model Series Definition

• DDM: Digital Dual Mix mixed digital input/output DIAS module
• 163: Hardware version code for 8-channel input + 8-channel output configuration

Technical & Performance Parameters

1. Digital Input Specs (8 Channels)
   • Rated Input Voltage: 24 VDC nominal, maximum 30 VDC withstand
   • Signal Level Threshold: Low < 8 VDC, High > 14 VDC, typical switching threshold 11 VDC
   • Input Current: 5 mA per channel @ 24 VDC
   • Input Filter Delay: 5 ms hardware glitch suppression filter
   • Status Indication: Green LED per independent input channel
2. Digital Output Specs (8 Channels)
   • Output Drive Type: Positive switching MOSFET
   • Continuous Channel Load Current: 2 A per channel
   • Total Module Maximum Output Current: 6 A (100% duty cycle continuous)
   • Inductive Load Breaking Energy: 0.65 Joule single channel, 1.95 Joule per 4-channel group
   • Output Off-State Residual Leakage Current: ≤ 12 μA
   • Switching Delay: < 200 μs on / < 200 μs off
   • Protection: Independent channel short-circuit hardware auto-recovery protection
   • Status Indication: Yellow LED per independent output channel
3. Bus & Power Specs
   • DIAS Backplane Bus Supply: 5 VDC bus power, module consumption 5 mA typical
   • Field Load Power Supply: External 24 VDC field power
4. Environmental Specs
   • Operating Temperature: 0°C to +60°C
   • Protection Class: IP20 cabinet installation
5. Mechanical Dimensions & Weight
   • Size (W × H × D): 102 mm × 51 mm × 76 mm (4.0 in × 2.0 in × 3.0 in)
   • Net Weight: 0.1 kg

Material Composition

• Module Housing: Lightweight flame-retardant PC engineering plastic
• Internal PCB: Miniaturized FR4 high-density circuit board
• Drive Power Devices: Low on-resistance N-channel MOSFET power transistors
• Signal Isolation: High-speed optocoupler between DIAS bus and field signal circuits

Structural Features

• Narrow-width DIN rail modular design for high-density multi-module cabinet stacking
• Left side: DIAS bus gold finger connector for cascade stacking with other DIAS modules
• Front panel: Independent channel wiring terminal row, separate green DI LED and yellow DO LED indicators for each channel
• Internal hardware independent overcurrent protection circuit for every single output channel

Working Principle

Core Function Features

1. Integrated 8 isolated digital input + 8 high-current digital output single module, reducing total module quantity in control cabinets
2. Per-channel independent short-circuit protection without affecting adjacent output channels
3. Hardware glitch filter on all input channels eliminates production line sensor bounce interference
4. Visual per-channel LED status indication for rapid on-site wiring fault diagnosis
5. Low residual leakage current output circuit avoids false actuation of small inductive loads
6. Cascade DIAS bus stacking without additional communication wiring between modules

Advantage Highlights

1. Ultra-narrow module width achieves maximum cabinet signal channel density
2. 2 A single-channel output capacity directly drives solenoid valves and small contactors without intermediate relay expansion
3. Complete electrical isolation between field 24 VDC signal and internal control bus eliminates ground loop interference
4. Lightweight plastic housing reduces DIN rail load for multi-module dense installation
5. Fast switching microsecond-level response suitable for high-speed packaging machine motion control

Applicable Industries

Installation Requirements

1. Mount on standard 35 mm DIN rail inside IP54 industrial automation cabinet
2. Cascade DIAS modules must fully engage side bus interlocking buckles to ensure gold finger contact
3. External 24 VDC field load power supply wire gauge minimum 1.5 mm² copper wire
4. Inductive loads (valves, contactors) must connect freewheeling flyback diodes in parallel at load terminals

Operation & Maintenance Precautions

1. Do not exceed 6 A total continuous output current for all 8 output channels simultaneously
2. Avoid wiring inductive loads exceeding single-channel 0.65 J breaking energy without external absorption circuit
3. Check front channel LED indicator status during equipment startup to quickly locate open-circuit sensor wiring faults
4. Disconnect external 24 VDC field power supply before plugging/unplugging DIAS bus stacked modules