ICS TRIPLEX T8451 Trusted 24 Vdc Digital Output Module

Overview

The ICS TRIPLEX T8451 Trusted 24 Vdc Digital Output Module provides reliable, high-performance control for industrial applications. With 40 output channels and Triple Modular Redundant (TMR) architecture, this module ensures fault tolerance and system reliability. It includes automatic diagnostics, line monitoring, and output short-circuit protection, offering robust performance even in critical environments.

Key Features

Feature	Description
Number of Outputs	40 channels, based on Triple Modular Redundant (TMR) architecture
Independent Power Groups	5 power groups, each containing 8 outputs
Fault Tolerance	Fully triplicated circuit design with optional line monitoring
Diagnostics & Self-test	Automatic diagnostics and self-test to ensure continuous system monitoring
Output Voltage	Measurement range: 0 to 32V dc Maximum withstand: -1V to 40V dc
Output Current Rating	Continuous: 2A per channel, limited to 8A per power group
Short Circuit Protection	Latching electronic protection for output short circuits
Sequence of Events (SOE) Reporting	Logs events with 1 ms resolution when output states change
Hot Replacement	Supports hot-replacement via Companion slot or SmartSlot configurations
Intrinsic Safety	Requires external barrier for intrinsic safety compliance
Temperature Rating	Operating: -5°C to 60°C (23°F to 140°F) Non-operating: -25°C to 70°C (-13°F to 158°F)
Certification	TϋV Certified IEC 61508 SIL 3

Electrical Specifications

Parameter	Value
System Supply Voltage Range	20 to 32V dc
Field Voltage Range (Operational)	18 to 32V dc
Output Voltage Measurement Range	0 to 32V dc
Maximum Withstanding Output Voltage	-1V to 40V dc
Continuous Output Current	2A per channel (limited to 8A per power group)
Output Off State Resistance (Leakage)	33Ω
Output On State Resistance	0.6Ω
Output Short Circuit Protection	Latching electronic protection
Crosstalk Between Channels	>-40 dB
Flashing/Pulsing Current Loads (Release 3.5)	At least 2800 µF at 2A
Minimum On State Load Current	50mA
Power Consumption	Field Supply (1A per channel): 24W System Supply (24V): 24W

Mechanical Specifications

Parameter	Value
Dimensions (LxWxH)	30cm x 3cm x 24.1cm (11.8in x 1.2in x 9.5in)
Weight	1.13 kg (2.5 lbs)

Environmental Specifications

Parameter	Value
Operating Temperature	-5°C to 60°C (23°F to 140°F)
Non-operating Temperature	-25°C to 70°C (-13°F to 158°F)
Temperature Change Rate	0.5°C/min
Operating Humidity	5% to 95% RH (non-condensing)
Vibration	10 to 57Hz ±0.075mm 57 to 150Hz 1.0g
Shock	15g, ½ sine wave, 11ms
EMI (Electromagnetic Interference)
ESD (Electrostatic Discharge)	Air discharge to 15kV Contact discharge to 8kV
Radiated Fields	10V/m, 27MHz to 500MHz
Transients and Bursts	2kV, 2.5kHz for t=60 seconds

Description

The T8451 Trusted 24 Vdc Digital Output Module offers precise control for industrial automation systems. With Triple Modular Redundant (TMR) design, this module delivers high fault tolerance and ensures reliability even in critical environments. It features automatic diagnostics, including line monitoring, to detect open and short circuits in wiring.

The module logs Sequence of Events (SOE) with 1ms resolution, capturing output state changes as they happen. Additionally, it supports hot-replacement for continuous system uptime. The module operates within a wide temperature range and meets IEC 61508 SIL 3 safety standards, making it ideal for high-integrity applications.

With advanced short circuit protection and output monitoring, the T8451 module guarantees that all field devices receive safe, reliable power. The module supports up to 40 output channels, each with independent power groups for optimal distribution. Its robust diagnostics ensure that your system performs under the harshest conditions.