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Honeywell CC-TUIO31 Universal Input Output IOTA

Configured for universal field signal termination and analog I/O execution in Honeywell Experion PKS control platforms, the Honeywell CC-TUIO31 (CC-TUIO31 Universal Input Output IOTA) provides direct physical and electrical interface functions for current input devices and configurable analog/digital output channels.

Hardware Specifications

Parameter	Specification
Model	CC-TUIO31
Brand	Honeywell
Product Type	Universal Input Output IOTA
Origin	USA
Weight	0.36 kg
Dimensions	5.5 x 16 x 14.5 cm
Operating Temp	-40 to +70 deg C module ambient
Power Consumption	Not specified
Input Type	Current input for 2, 3, or 4 wire devices
Input Range	0-20 mA or 4-20 mA
A/D Converter Resolution	16 bit
Input Scan Rate	10 ms
Channel Configuration	Any 4 channels
Frequency Input Range	0-15 kHz
Normal Mode Rejection Ratio	18 dB at 50 Hz, 20 dB at 60 Hz
Crosstalk (DC to 60 Hz, channel-to-channel)	60 dB
Output Protection	Electronic short circuit protection
Analog Communication Support	HART 7
HART Interface	HART modem per channel for fast performance
Scan Function	Fast Scan (Priority I/O Module Scan)
Safe State Function	Configurable FAILOPT behavior for Digital / Analog Output channels
Tariff Code	8537101190

4-20 mA HART Loop Protocol and Channel Isolation Features

The CC-TUIO31 is designed for process instrumentation signal handling within Honeywell control architectures. The module supports 4-20 mA current loops with HART 7 communication capability, allowing analog measurement signals and device diagnostic communication to be processed through the same field wiring interface.

Channel-to-channel crosstalk performance is specified at 60 dB from DC to 60 Hz. The module provides configurable channel behavior for analog and digital output safe-state handling, with electronic short circuit protection applied to output circuits.

The input subsystem uses a 16 bit A/D converter with a 10 ms input scan rate, supporting configurable field device connections including 2 wire, 3 wire, and 4 wire current devices.

Frequently Asked Questions

Q: What type of field signals can the CC-TUIO31 process?
A: The CC-TUIO31 processes current-based field signals using 0-20 mA or 4-20 mA input ranges and supports 2 wire, 3 wire, and 4 wire device configurations.

Q: Does the CC-TUIO31 support HART communication?
A: Yes. The module supports HART 7 communication through a dedicated HART modem per channel for analog I/O device communication.

Q: How are output fault conditions handled by the module?
A: Digital and analog output channels support configurable FAILOPT safe-state behavior, and output circuits include electronic short circuit protection.

Field Installation Guidelines

• Install the CC-TUIO31 according to Honeywell Experion PKS I/O assembly installation procedures and approved cabinet layouts.
• Verify field wiring polarity and terminal assignments before applying power to the I/O assembly.
• Use shielded instrumentation cable for analog current loops where required by site electrical standards.
• Connect cable shields according to the plant grounding specification to minimize electromagnetic interference.
• Separate analog signal wiring from high-current power conductors and switching circuits.
• Confirm that connected field devices match the configured 2 wire, 3 wire, or 4 wire current input arrangement.
• Validate HART communication wiring integrity when using smart field transmitters.

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