Honeywell TK-IOLI01 I/O Module | 16-Channel Universal

Technical Specifications Overview

The table below details the core technical parameters of this I/O module.

Parameter	Specification
Model Number	TK-IOLI01
Product Type	I/O Module (Analog Input)
Compatible System	Honeywell Experion PKS Series
Number of Inputs	16 channels (universal)
Input Signal Types	4-20 mA, 0-20 mA, 0-10 VDC, or ±10 VDC
Resolution	16-bit (0.0015% of full scale)
Input Accuracy	±0.05% of full scale (at 25°C)
Temperature Drift	±25 ppm/°C (maximum)
Input Impedance (Current)	100 Ω (for current modes)
Input Impedance (Voltage)	> 1 MΩ (for voltage modes)
Conversion Time	10 ms per channel (typical)
Channel Isolation	1500 VAC (channel-to-channel)
Common Mode Rejection	90 dB (minimum at 50/60 Hz)
Internal Power Draw	5 VDC, 350 mA
Dimensions (W x H x D)	45 mm x 130 mm x 120 mm
Weight	0.30 kg
Terminal Type	34-point removable screw terminal block
Indicators	16 green LEDs (one per input channel)
Operating Temperature	0°C to +60°C

Universal Analog Input Flexibility

The TK-IOLI01 I/O module provides 16 universal analog input channels for versatile process signal acquisition. This I/O module accepts four different signal types—4-20 mA, 0-20 mA, 0-10 VDC, or ±10 VDC—offering exceptional flexibility for system design. Each channel operates independently, allowing users to mix signal types within the same module.

The module delivers exceptional 16-bit resolution, translating to 0.0015% of full-scale granularity. This high resolution ensures precise measurement of temperature, pressure, flow, and level variables. The TK-IOLI01 achieves an input accuracy of ±0.05% at 25°C, meeting the demands of critical process control applications.

Superior Noise Rejection and Input Protection

This I/O module provides 1500 VAC isolation between each input channel, eliminating ground loop issues and ensuring signal integrity. The module’s 90 dB common mode rejection effectively attenuates electrical noise from motors, drives, and other industrial equipment. This specification guarantees stable readings even in electrically noisy environments.

The TK-IOLI01 includes comprehensive input protection against over-voltage and transient surges. The module’s 10 ms conversion time enables smooth monitoring of process variables without sacrificing accuracy or resolution.

Physical Design and Installation Features

This I/O module occupies a single slot in the Experion 13-slot chassis and measures 45 mm in width. The module weighs 0.30 kg, making handling straightforward during installation and replacement. A 34-point removable screw terminal block on the front panel accepts all field wiring connections, simplifying both installation and maintenance.

Sixteen green LEDs provide clear visual status indication, with one LED per channel showing active input signal presence. This comprehensive indicator set enables rapid troubleshooting without requiring a programming terminal. The terminal block accepts wires up to 2.5 mm² (AWG 14), ensuring secure and reliable connections.

Power and Environmental Specifications

The TK-IOLI01 draws 350 mA from the 5 VDC backplane, ensuring stable operation in fully populated racks. This I/O module operates reliably across a temperature range of 0°C to +60°C. It also withstands humidity from 5% to 95% (non-condensing) and resists vibration up to 2G at 10-150 Hz.