Product Overview
This PLC module delivers high-performance logic and motion control for sophisticated automation applications. Complex manufacturing processes require dependable processing power with extensive I/O flexibility. The 353D4F1NNETNNA4 integrates a fast processor with built-in communication and positioning functions. Its modular design accommodates various expansion options for system scalability. Automation engineers can program this unit using Siemens TIA Portal software environments. The module’s industrial-grade construction ensures reliable operation in demanding factory floor conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Processor Type | 32-bit RISC with floating-point unit |
| Program Memory | 128 KB (expandable to 512 KB) |
| Data Memory | 64 KB SRAM (battery-backed) |
| Retentive Memory | 16 KB (non-volatile Flash) |
| Digital Inputs | 16 channels, 24 VDC, sink/source selectable |
| Digital Outputs | 12 channels, 24 VDC / 1.0A (transistor) |
| Analog Inputs | 4 channels, 16-bit, 0–10 V or 4–20 mA |
| Analog Outputs | 2 channels, 14-bit, 0–10 V or 4–20 mA |
| High-Speed Counters | 4 channels, up to 100 kHz |
| Pulse Train Outputs | 2 channels, up to 200 kHz |
| Communication Ports | PROFINET (RJ45), PROFIBUS DP, RS-485 |
| Cycle Time | ≤5 ms for 10K instructions |
| Real-Time Clock | Integrated with 14-day battery backup |
| Battery Backup | 3.6V lithium cell for RAM and clock |
| Isolation | 1500 VAC (I/O to logic) |
| Supply Voltage | 24 VDC ±20% |
| Power Consumption | ≤12 W |
| Operating Temperature | –20°C to +65°C |
| Storage Temperature | –40°C to +85°C |
| Enclosure Rating | IP20 (open) |
| Dimensions (W x H x D) | 80 mm x 125 mm x 120 mm |
| Weight | 0.72 kg |
| Mounting Type | DIN-rail (35 mm) with locking slide |
Processing Power and Execution Speed
The 353D4F1NNETNNA4 executes complex control algorithms with a cycle time under 5 milliseconds. Its 32-bit RISC processor handles floating-point math and array operations efficiently. Program memory stores up to 128 kilobytes of user application code in Flash. Data memory preserves runtime variables and system status in battery-backed SRAM. An integrated watchdog timer monitors program execution and initiates recovery procedures automatically.
Integrated I/O and Motion Control
Sixteen digital input channels accept signals from sensors, pushbuttons, and selector switches. Twelve digital output channels drive contactors, valves, and indicator lamps directly. Four high-speed counters capture pulse trains from encoders and flow meters. Two pulse train outputs generate speed and position references for servo drives. Analog channels provide process measurement and control with exceptional resolution.
Communication and Network Integration
PROFINET connectivity enables high-speed data exchange with HMIs, drives, and other PLCs. PROFIBUS DP supports legacy devices and remote I/O stations in the network. RS-485 ports connect to barcode readers, printers, and instrumentation. The module acts as a PROFINET IO device or controller based on configuration settings. Integrated Ethernet services include web server, email notification, and FTP file transfer.
Memory Retention and Energy Storage
A replaceable 3.6-volt lithium cell maintains RAM contents and the real-time clock for 14 days. The module stores critical parameters in non-volatile Flash for permanent retention. Internal capacitors provide brief ride-through during input supply interruptions. Total energy storage supports controlled shutdown during sustained power loss conditions. Low power consumption minimizes heat generation and reduces cooling requirements.
Diagnostics and Maintenance Features
LED indicators display operational status, network activity, and I/O channel conditions. The module logs diagnostic events with time stamps for troubleshooting reference. Integrated self-test routines verify processor, memory, and I/O functionality at startup. The unit supports firmware updates over the network without physical access. Online debugging tools allow real-time program monitoring and variable modification.
Mechanical Installation and Environmental Tolerance
The 80-millimeter wide housing accommodates extensive I/O and communication features. Weighing 720 grams, the module requires robust rail mounting for long-term reliability. The unit operates in temperatures from –20°C to +65°C for harsh environments. Front-facing connectors and indicators simplify installation and system verification. Clear labeling assists rapid identification of terminals and configuration settings.
Details
| Weight | 0.72 kg |
|---|---|
| Dimensions | 80 × 125 × 120 mm |
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