Description
Key Technical Specifications
- Output & Communication Performance: This module is equipped with 8 analog output channels, which can efficiently convert digital signals into analog signals. It supports common analog output signal requirements in industrial scenarios. With a 12-bit resolution, it can ensure the accuracy of signal output, and the output accuracy can reach ±0.5% or higher. It is configured with an RS – 485 communication interface and supports the Modbus RTU protocol, which can realize seamless data exchange with other devices in the industrial control network and facilitate centralized management and control of the system.
- Safety & Redundancy Design: It adopts a TMR triple modular redundancy architecture. When a single channel fails, the module can still maintain continuous operation, which greatly improves the fault tolerance of the system. It has obtained SIL 3 certification recognized by TÜV in accordance with the IEC 61508 standard, which fully meets the use requirements of safety-critical industrial occasions. In addition, its enclosure reaches IP65 protection level, which can effectively prevent dust and water intrusion and adapt to harsh on-site working environments.
- Physical & Power Traits: The input voltage range of the module is 20 – 32V DC, and the maximum current consumption is 25mA, with a power consumption of no more than 1.5W, which is energy-efficient. The weight of the conventional version is about 1.28kg, and there are differences in the size data of different sources. One of the versions has dimensions of 96mm×96mm×90mm. Its compact structure is convenient for installation and integration into the existing industrial control system rack.
ICS Triplex T8403C
Field Application & Problem Solved
- Turbomachinery Control: In the control system of centrifugal compressors in petrochemical plants, the T3480 module can accurately output analog signals to control the opening of valves and the speed of the compressor. Its pre-configured control algorithms can realize real-time calculation of compressor surge critical points and dynamic valve control, avoiding equipment damage caused by compressor surge. At the same time, the TMR architecture ensures that the control signal will not be interrupted due to module failure.
- Energy Industry Safety Control: In nuclear power plants and thermal power plants, the module is used to convert the digital control signals of safety instrumented systems into analog signals to drive actuators such as pressure regulating valves and flow control valves. Its SIL 3 certification ensures that even in complex and harsh working conditions, the signal output is accurate and reliable, preventing safety accidents caused by signal distortion or interruption.
ICS Triplex T8403C
Installation & Maintenance Pitfalls (Expert Tips)
- Voltage Matching Check: The module’s input voltage range is 20 – 32V DC. During installation, it is necessary to strictly match the power supply voltage to avoid excessive or insufficient voltage that may damage the module or lead to unstable signal output. After connecting the power supply, use a multimeter to verify the voltage stability before powering on the whole system.
- Communication Protocol Configuration: When connecting with the upper control system, confirm that the Modbus RTU communication parameters (such as baud rate and address) of the module are consistent with the system settings. Inconsistent parameters will cause communication failures. After configuration, conduct a communication test to ensure that data can be transmitted smoothly in both directions.
- Post-maintenance Function Verification: When replacing or maintaining the module, since it is applied to safety-critical occasions, after reinstallation, it is necessary to verify not only the normal output of analog signals but also the effectiveness of the TMR redundancy function and self-diagnosis function. It can be tested by simulating single-channel faults to ensure that the module can switch fault channels in time and send out fault alarms.
