Product Overview
The Siemens TI435-CPU executes control logic and processes data for industrial automation systems. This central processing unit handles complex mathematical operations and real-time I/O management. It provides the computational backbone for Siemens SIMATIC TI series installations. The unit fits into standard TI series rack-mounted chassis configurations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | TI435-CPU |
| Product Type | Central Processing Unit |
| Processor Type | 16-bit microprocessor |
| Memory Capacity | 32 KB user program memory |
| Program Memory | 16 KB RAM, 16 KB EPROM |
| I/O Capacity | 512 digital points, 64 analog channels |
| Execution Speed | 1 ms per 1K logic instructions |
| Communications | RS-232 serial port |
| Expansion Ports | I/O bus interface |
| Scan Cycle | Programmable, 5–500 ms |
| Power Supply | 5 VDC from backplane |
| Power Dissipation | 4.5 W typical |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | –40°C to 85°C |
Physical Dimensions and Mounting
This CPU module measures 250 mm in width, 35 mm in height, and 160 mm in depth. The unit weighs approximately 0.85 kg. It plugs directly into a standard TI series rack backplane. The front panel includes LED status indicators for run, fault, and communication activity. These LEDs provide immediate visual feedback on processor operation.
Processor Architecture and Memory
The TI435-CPU employs a 16-bit microprocessor for efficient control processing. It stores user programs in 32 KB of combined RAM and EPROM memory. The RAM section handles program modifications and data storage temporarily. The EPROM section retains the program permanently after programming. This architecture ensures reliable program retention during power cycles. The CPU executes logic instructions at a speed of 1 ms per 1K operations.
I/O and Communication Capabilities
This processor supports up to 512 digital I/O points and 64 analog channels. It communicates with remote I/O racks through the expansion bus interface. The built-in RS-232 serial port connects to programming terminals or host computers. The module includes diagnostic functions for fault monitoring and error reporting. The scan cycle time ranges from 5 to 500 milliseconds based on program complexity.
Installation and System Integration
You can install this CPU in any compatible TI series rack slot. Insert the module firmly into the backplane connector until seated properly. Always power down the system before inserting or removing the unit. Configure the memory settings using the programming software before operation. Connect the serial port to a programmer or operator interface for initial setup.
Environmental Compliance
This module carries CE marking and UL recognition for industrial applications. It also complies with RoHS and WEEE directives. The conformal coating provides protection against moisture and dust.
Details
| Weight | 0.58 kg |
|---|---|
| Dimensions | 45 × 230 × 140 mm |
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