Product Overview

The Honeywell DC-TCNT01 is a high-integrity, 8-channel pulse counter module engineered for the Experion PKS ecosystem and FSC Safety systems. Designed to meet stringent SIL3 safety requirements, this module provides precision frequency and pulse measurement essential for safety-instrumented functions and critical process control. As a member of the Series C I/O family, the DC-TCNT01 facilitates high-accuracy flow calculation and positioning data by interfacing directly with turbine meters and encoders. Its architecture is optimized for the C300 controller environment, utilizing a chassis-less Input/Output Termination Assembly (IOTA) design that maximizes cabinet space while maintaining superior galvanic isolation and signal protection.

Technical Performance and Safety Parameters

• Safety Integrity Level Certified SIL3 for safety-critical applications

• Channel Density 8-Channel High-Speed Pulse Counting

• Counting Modes Configurable Quadrature and Linear modes

• Frequency Response Up to 10kHz per channel

• Input Voltage Range 5V DC to 30V DC

• Galvanic Isolation 1500V DC protection

• Environmental Tolerance -40°C to +70°C operating range

• Mounting Type Direct IOTA mounting (Chassis-less)

• Redundancy Support Fully compatible with redundant C300 Controller pairs

• Mass and Volume 0.36 kg | 43cm x 23cm x 25cm

Industrial Safety and Measurement Scenarios

The DC-TCNT01 is a vital component in sectors where measurement accuracy and functional safety are non-negotiable. It bridges the gap between high-speed field mechanical motion and digital safety logic.

• Custody Transfer & Flow Metering Delivering the precision counting required for revenue-grade flow measurement in oil and gas pipelines.

• Turbine Speed Monitoring Providing real-time RPM data for overspeed protection systems in power generation facilities.

• Safety Instrumented Systems (SIS) Functioning as a SIL3-rated input for safety loops that require pulse-based triggers, such as emergency shutdown (ESD) protocols.

• Rotary Encoding & Positioning Interfacing with industrial encoders to provide accurate position feedback for large-scale valves or mechanical actuators in chemical processing.