Overview
The Honeywell TC-IDK161 is a 16-point isolated discrete input module engineered for 120VAC signal acquisition in Honeywell C200 and DCS control systems. Each input channel features individual isolation, ensuring reliable operation and strong noise immunity in demanding industrial environments. This module converts AC field signals into digital format suitable for PLC and automation system processing.
Key Features
- 16 isolated input channels (8 points per common)
- 120VAC input voltage operation (79–132 VAC range)
- Galvanic isolation between channels for noise rejection
- Individual channel isolation for independent switching
- Detects standard AC field devices: limit switches, push buttons, motor starters, sensors
- 20-position terminal block connections (TC-TBNH)
Technical Specifications
- Input channels: 16 points (8 per common)
- Input voltage: 79–132 VAC, 50/60 Hz
- Nominal voltage: 120 VAC
- On-state current (min): 5 mA @ 79 VAC
- Off-state voltage (max): 20 VAC
- Off-state current (max): 2.5 mA
- Power dissipation: 6.0 watts maximum
- Isolation voltage: Channel-to-channel and user-to-system 100% tested at 2546 VDC for 1 second
- Input impedance (max): 11 kΩ @ 60 Hz
- Connection: TC-TBNH terminal block, 20-position
- Form factor: CIOM-A (Compact Input/Output Module)
Typical Applications
- Process control systems monitoring sensor states and alarm conditions
- Machine automation systems reading switch positions and equipment status
- Safety systems verifying interlocked equipment operation
- Industrial HVAC and environmental control monitoring
- Batch processing and discrete manufacturing automation
- Critical downtime-sensitive applications requiring reliable signal isolation
Compatibility & Replacements
Compatible With
- Honeywell C200 control systems
- Honeywell DCS (Distributed Control Systems)
- CIOM-A compatible chassis and backplanes
- Standard 120VAC field devices (switches, sensors, relays)
- Industrial automation and process control networks
Replaces / Drop-In Replacement For
- TK-IDK161 (conformal-coated version of TC-IDK161)
- Other Honeywell 16-point AC input modules in legacy C200 systems
Works With
- Honeywell C200 engineering software and programming environments
- Standard PLC communication protocols integrated with Honeywell DCS
- Discrete input signal processing for CIOM-A architecture
- Existing CIOM-A terminal block interconnections
