راهنمای جامع فایروالهای صنعتی و تقسیمبندی شبکه OT
فایروالهای صنعتی نقش حیاتی در امنیت سایبری OT ایفا میکنند و از شبکههای PLC، DCS و SCADA از طریق بخشبندی، کنترل ورود/خروج و ادغام IDS/IPS مطابق با اصول IEC 62443 محافظت میکنند.

The DVP32EH00T3-L (DVP32EH--T3-L) represents the flagship high-end positioning within the Delta DVP Series, specifically belonging to the advanced EH3 generation. This Main Processing Unit is engineered for precision motion control and complex logic sequences, offering a robust 32-point I/O configuration (16 Inputs / 16 Outputs). Designed for high-speed industrial applications such as high-speed labeling, multi-axis positioning, and advanced packaging machinery, the DVP32EH00T3-L delivers superior execution speed and enhanced data register capacity compared to standard slim-type PLCs. Its heavy-duty construction and high-speed pulse output capabilities make it a reliable core controller for high-demand automation architectures.
The EH3 Series architecture is defined by its high-speed processing and expansive expansion capabilities. It features dual-core processing to handle logic and communication independently, ensuring deterministic performance even under heavy network loads. The "T" designation indicates Transistor outputs, which are essential for high-frequency switching and controlling servo or stepper drives via pulse train output (PTO). The unit supports specialized motion control instructions and provides a high-density I/O footprint within a rugged, mountable chassis designed for maximum thermal dissipation and electrical noise immunity.
| Attribute | Specification |
| Model | DVP32EH00T3-L |
| Brand | Delta Electronics |
| Series | DVP-EH3 |
| Module Type | Main Processing Unit (Base Unit) |
| Total I/O Points | 32 Points (16 DI / 16 DO) |
| Output Type | Transistor (NPN/PNP depending on wiring) |
| Supply Voltage | 100-240 VAC |
| Program Capacity | 30k steps |
| Execution Speed | 0.24 microseconds (Basic instruction) |
| Communication | RS-232 / RS-485 (Modbus ASCII/RTU) |
| Weight | 2.0 kg |
| Operating Temp | 0-55 deg C |
What is the primary advantage of the EH3 series over the ES2 or SS2 series?
The EH3 is a "High-Performance" model featuring significantly larger program memory (30k steps), faster instruction execution, and more robust high-speed counters (up to 200 kHz). It is intended for machine-level control rather than simple sequence control.
Can I expand the I/O of the DVP32EH00T3-L?
Yes, the EH3 series supports right-side high-speed expansion modules and standard DVP-EH series extension units, allowing for a maximum configuration of up to 512 I/O points.
Does this model support high-speed pulse outputs for motion control?
Absolutely. As a transistor output ("T") model, it is equipped with high-speed pulse output channels capable of reaching 200 kHz, making it directly compatible with Delta ASDA-B2/A2 series or any third-party servo drives.
High-Speed Wiring: To prevent signal degradation on the 200 kHz pulse outputs, use shielded twisted-pair cables for the connections between the PLC and the Servo Drive. Ensure the cable length does not exceed 3 meters for high-frequency pulse stability.
Heat Management: Due to the 2.0 kg heavy-duty chassis and internal power supply, ensure the PLC is mounted vertically on a DIN rail. Maintain a minimum clearance of 50 mm from adjacent wire ducts or components to allow for natural convection cooling through the top and bottom vents.
Transistor Protection: When switching inductive loads (such as small DC solenoids) with the transistor outputs, always install a flyback diode (freewheeling diode) across the load. This prevents back-EMF spikes from damaging the internal output transistors over time.
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