Product Short Description
Product Name: Siemens CTI-2501 Analog I/O Module
Product Introduction: The CTI-2501 is an 8-channel analog input and 4-channel analog output module manufactured by Control Technology Inc. (CTI), designed for compatibility with Simatic® 505 programmable controllers. It is engineered for seamless integration into industrial control systems, offering precise analog signal handling for enhanced process monitoring and control.
Description
Technical Specifications:
| Parameter | Specification |
|---|---|
| Manufacturer | Control Technology Inc. (CTI) / Siemens Compatible |
| Product Type | Analog Input/Output Module |
| Input Channels | 8 |
| Output Channels | 4 |
| Input Range | -10V to +10V or 4 to 20 mA |
| Output Range | 0V to 10V |
| Resolution | 16-bit analog-to-digital conversion |
| Accuracy | ±0.1% |
| Response Time | <1ms |
| Sampling Rate | 1 kHz |
| Output Type | Relay |
| Power Supply Voltage | 24V DC |
| Communication Interface | Profinet |
| Operating Temperature | -25°C to +85°C or -25°C to +70°C |
| Protection Rating | IP20 |
| Connection Type | Terminal block / Modular |
| Mounting Style | Panel mount / DIN rail |
| Weight | Approximately 0.5 kg |
Functional Features:
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High-resolution 16-bit analog-to-digital conversion for unparalleled accuracy in measuring and processing real-world analog signals
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8 independent analog input channels and 4 analog output channels for complex industrial environments
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Integrated overvoltage and short-circuit protection circuits
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Profinet communication interface for seamless network integration and real-time data exchange
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Compact design and lightweight construction for easy installation and maintenance
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M12 connectors for quick connection to other devices
Performance Parameters:
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16-bit ADC resolution
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1 kHz sampling rate for real-time monitoring and control
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Response time less than 1ms
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Accuracy ±0.1%
Material Composition: Robust industrial-grade materials rated for -25°C to +85°C operation
Structural Features:
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Compact module design
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Panel mount or DIN rail mounting options
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Terminal block connection type
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IP20 rated connectors for protection against dust and non-corrosive liquids
Working Principle: The CTI-2501 converts analog input signals (voltage or current) from sensors into digital values using a 16-bit ADC. These digital values are transmitted to the programmable controller via the Profinet interface. The module also converts digital output commands from the controller into analog output signals for controlling actuators and other field devices.
Advantages and Strengths:
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High precision 16-bit resolution for demanding measurement applications
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Fast 1kHz sampling rate ensures real-time process monitoring
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Wide operating temperature range for harsh industrial environments
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Profinet integration for seamless system connectivity
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Built-in protection circuits for reliable operation
Applicable Industries:
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Manufacturing automation
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Energy and power
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Transportation
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Temperature, pressure, and flow measurement applications
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Petrochemical
Model Series: CTI-2500 Series (Compatible with Simatic® 505)
Installation Requirements:
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Panel mount or DIN rail installation
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Modular connection type for easy setup
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Requires 24V DC power supply
Usage Precautions:
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Designed for compatibility with Simatic® 505 programmable controllers
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M12 connectors for quick connection
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IP20 rating requires installation in protected environments or enclosures






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