TRICONEX 3311 Digital Input Module

• Output and Signal Parameters
  • It has 4 common - return, DC - coupled output channels, with a 12 - bit resolution and an output accuracy of less than 0.25% of the full - scale range within the 4 - 20mA controlled current range.
  • The output current can reach an over - range of 0 - 22mA and also has a 0mA output capability, with a step function response time of less than 2ms.
  • The typical switch time when a channel fails is 1ms, and the maximum switch time does not exceed 3ms.
• Power and Loop Parameters
  • The nominal external loop power supply is 24V DC, and the maximum allowable voltage is 32V DC, with reverse voltage protection.
  • For a 300Ω load, the loop power supply needs to be over 16V DC with a minimum current of 1A; for an 800Ω load, the loop power supply must be over 28V DC with a minimum current of 1A.
  • It has continuous over - range protection against 36V DC and 0V DC, which effectively protects the internal circuitry from damage due to abnormal voltage.

• Technical Specifications
  • Input and Signal Parameters
    • It is configured with 64 commoned, DC-coupled input channels. It offers software-selectable voltage options of 24 VDC or 48 VDC, adapting to different industrial field requirements.
    • The voltage range for 24 VDC is 15 - 30 VDC with a maximum voltage of 36 VDC; for 48 VDC, the range is 20 - 72 VDC. The turn-on voltage threshold exceeds 15 VDC for 24 VDC and 32 VDC for 48 VDC, while the turn-off threshold is below 6 VDC for 24 VDC and 11 VDC for 48 VDC.
    • The nominal turn-on current is 2 - 3 mA. The input delay is less than 2 ms for 24 VDC and less than 10 ms for 48 VDC, and the minimum point isolation voltage reaches 1500 VDC.
  • Physical and Weight Parameters
    • There are conflicting data on its physical dimensions from different sources, but it is designed for integration into standard Triconex system racks. One source lists its weight as 5000 grams, while another cites approximately 0.5 kilograms, and these discrepancies may stem from differences in whether accessories are included in the weighing.
  • Environmental Parameters
    • It maintains stable operation within an operating temperature range of -40°C to 70°C, which allows it to adapt to extreme temperature conditions in various industrial sites.
    • It has a protection level of IP65, enabling it to resist the impact of dust and water in harsh industrial environments and ensuring long-term reliable operation.

• Electrical Parameters
  • It is configured with 32 commoned digital output channels, the nominal output voltage is 24 VDC, and the adaptive voltage range is 16 - 32 VDC, with a maximum withstand voltage of 36 VDC.
  • Each output channel can provide a maximum current of 1.7 A, the overall power consumption of the module is less than 13 watts, and some data shows that its output power can reach 15 watts.
  • It adopts a dual-power design, which further improves the stability of power supply and avoids system operation interruption caused by single power failure.
• Processing and Memory Parameters
  • It is equipped with a dual-core PowerPC processor with a clock frequency of 800 MHz, which can efficiently support complex control algorithms and logic operations.
  • The module provides a memory range of 1 GB - 8 GB, which can store a large number of control logic programs and real-time operating data to meet the needs of complex industrial control scenarios.

Technical Specifications:

• Type: Communication Module
• System Compatibility: Designed to work within the Tricon system architecture, supporting seamless integration with other Tricon components.
• Communication Protocols: Supports various industry-standard communication protocols, facilitating connectivity with Distributed Control Systems (DCS), Supervisory Control and Data Acquisition (SCADA) systems, and other plant networks.