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- 48 Total Channels: 24 digital input and 24 digital output channels, TTL-level, bidirectional configuration.
- TTL Logic Compatibility: Operates at standard 5VDC TTL logic levels, ensuring compatibility with a wide range of digital devices and controllers.
- Opto-Isolated Interface: Provides electrical isolation between the PC and external circuits to prevent noise interference and protect the host system.
- Interrupt Support: Supports up to four interrupt request lines (IRQ3–7/9), allowing event-driven control and efficient CPU utilization.
- Connector Interfaces: Equipped with a 37-pin D-sub connector and a 30-pin flat cable connector for flexible wiring and external device connection.
- Compact Form Factor: Board dimensions of approximately 340.5 mm × 107 mm, suitable for standard PC expansion slots.
- High-Speed Response: Designed for fast digital signal processing, suitable for real-time control and monitoring.
- Software Support: Compatible with CONTEC’s API-TOOL drivers for Windows and Linux, and VI-DAQ library for LabVIEW integration.
- Industrial Reliability: Built for continuous operation in industrial environments, with robust circuit protection and stable performance.
- TTL Logic Compatibility: Operates at standard 5VDC TTL logic levels, ensuring compatibility with a wide range of digital devices and controllers.
- Opto-Isolated Interface: Provides electrical isolation between the PC and external circuits to prevent noise interference and protect the host system.
- Interrupt Support: Supports up to four interrupt request lines (IRQ3–7/9), allowing event-driven control and efficient CPU utilization.
- Connector Interfaces: Equipped with a 37-pin D-sub connector and a 30-pin flat cable connector for flexible wiring and external device connection.
- Compact Form Factor: Board dimensions of approximately 340.5 mm × 107 mm, suitable for standard PC expansion slots.
- High-Speed Response: Designed for fast digital signal processing, suitable for real-time control and monitoring.
- Software Support: Compatible with CONTEC’s API-TOOL drivers for Windows and Linux, and VI-DAQ library for LabVIEW integration.
- Industrial Reliability: Built for continuous operation in industrial environments, with robust circuit protection and stable performance.
1. Product Overview
Product Name: PIO-24/24(PC)
Article Number: PIO-24/24(PC)
Series: Digital I/O Interface Boards – TTL Bidirectional Series
Manufacturer: CONTEC Co., Ltd.
Product Type: TTL Bidirectional Digital I/O Board (48-channel)
Bus Interface: PC Bus (ISA/AT compatible)
Category: Industrial Automation – Measurement and Control Products
The CONTEC PIO-24/24(PC) is a 48-channel TTL-level bidirectional digital input/output interface card designed for PC-based industrial control and measurement systems. It provides 24 input and 24 output channels, supporting TTL-level logic signals. The board is engineered for high-speed, reliable digital communication between external devices and a host PC, making it suitable for automation, data acquisition, and control applications.
2. Key Features
- 48 Total Channels: 24 digital input and 24 digital output channels, TTL-level, bidirectional configuration.
- TTL Logic Compatibility: Operates at standard 5VDC TTL logic levels, ensuring compatibility with a wide range of digital devices and controllers.
- Opto-Isolated Interface: Provides electrical isolation between the PC and external circuits to prevent noise interference and protect the host system.
- Interrupt Support: Supports up to four interrupt request lines (IRQ3–7/9), allowing event-driven control and efficient CPU utilization.
- Connector Interfaces: Equipped with a 37-pin D-sub connector and a 30-pin flat cable connector for flexible wiring and external device connection.
- Compact Form Factor: Board dimensions of approximately 340.5 mm × 107 mm, suitable for standard PC expansion slots.
- High-Speed Response: Designed for fast digital signal processing, suitable for real-time control and monitoring.
- Software Support: Compatible with CONTEC’s API-TOOL drivers for Windows and Linux, and VI-DAQ library for LabVIEW integration.
- Industrial Reliability: Built for continuous operation in industrial environments, with robust circuit protection and stable performance.
3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Model | PIO-24/24(PC) |
| Bus Interface | PC Bus (ISA/AT compatible) |
| Input Channels | 24 channels (TTL-level) |
| Output Channels | 24 channels (TTL-level) |
| Total I/O Points | 48 |
| Signal Type | TTL (5VDC logic) |
| Input Voltage Range | 0–5VDC |
| Output Voltage Range | 0–5VDC |
| Input Resistance | Approx. 10 kΩ (pull-up) |
| Output Type | Open collector (negative logic) |
| Output Current Capacity | 40 mA per channel (max) |
| Response Time | 200 nsec (input), 1 µsec (output) |
| Interrupt Lines | 4 (IRQ3–7/9 selectable) |
| Isolation | Opto-coupler isolation between I/O and logic circuits |
| Connectors | 37-pin D-sub female + 30-pin flat cable header |
| Dimensions | 340.5 mm (L) × 107 mm (H) |
| Power Supply | +5VDC from PC bus |
| Power Consumption | Approx. 400 mA (max) |
| Wiring Distance | Up to 5 m (recommended) |
| Operating Temperature | 0–50°C |
| Storage Temperature | -10–60°C |
| Humidity | 10–90% RH (non-condensing) |
| Weight | Approx. 200 g |
| Mounting | Standard PC expansion slot |
| Compliance | CE marking (industrial EMC compliance) |
4. Functionality
The PIO-24/24(PC) functions as a digital interface board that allows a PC to communicate with external digital devices such as sensors, switches, relays, and actuators. Each of the 48 channels can be configured as either input or output, enabling flexible control schemes.
- Input Function: The 24 input channels accept TTL-level signals (0–5VDC). These inputs can detect logic states from external devices and can be used to trigger interrupts for event-driven processing.
- Output Function: The 24 output channels provide TTL-level open collector outputs capable of driving external logic circuits, LEDs, or relays.
- Bidirectional Operation: Channels can be configured for input or output operation, allowing dynamic control of data flow.
- Interrupt Handling: The board supports up to four interrupt request lines (IRQ3–7/9), enabling real-time response to external events.
- Applications:
- Industrial automation and process control
- Machine monitoring and control systems
- Data acquisition and digital signal processing
- Laboratory instrumentation and test systems
- Embedded control in manufacturing environments
Compatibility:
The board is compatible with standard PC/AT bus systems and can be integrated into legacy or modern industrial PCs using ISA expansion slots. It supports Windows and Linux operating systems through CONTEC’s driver packages and can be programmed using C/C++, Visual Basic, or LabVIEW environments.
5. Components & Accessories
Included Items:
- PIO-24/24(PC) main board
- User manual and installation guide
- Driver software (API-TOOL for Windows/Linux)
- LabVIEW VI-DAQ library (downloadable)
Optional Accessories:
- Cables:
- PCB37P or PCB37PS (37-pin D-sub cable)
- PCB30P (30-pin flat cable)
- Terminal Blocks:
- EPD-37A, EPD-37 (for D-sub connection)
- CM-32(PC)E (for flat cable connection)
- Connector Sets:
- CN5-D37M (D-sub male connector)
- CN5-H96F (half-pitch connector for extended I/O)
These accessories facilitate easy wiring between the board and external devices, ensuring reliable signal transmission and simplified maintenance.
6. Installation & Setup
Requirements:
- IBM PC/AT compatible computer with available ISA expansion slot
- +5VDC power supply from PC bus
- Supported operating system (Windows or Linux)
Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the PIO-24/24(PC) board into an available ISA slot.
3. Secure the board with the mounting screw.
4. Connect external devices using the 37-pin D-sub or 30-pin flat cable connector.
5. Install the driver software (API-TOOL or VI-DAQ).
6. Configure I/O addresses and interrupt settings via software or jumper switches.
7. Verify operation using the provided diagnostic utility.
Mounting Options:
- Standard full-size ISA slot mounting
- Compatible with industrial PC chassis and rackmount systems
Configuration:
- I/O address and IRQ lines can be set via DIP switches or software configuration.
- Supports any 8-byte or 16-byte boundary for I/O mapping.
7. Performance & Capabilities
- Speed: Input response time of 200 nanoseconds and output response time of 1 microsecond, enabling high-speed digital control.
- Capacity: 48 total I/O points (24 input + 24 output).
- Efficiency: Low power consumption (approx. 400 mA at 5VDC).
- Reliability: Opto-isolated design minimizes electrical noise and prevents damage from voltage surges.
- Interrupt Performance: Supports multiple interrupt lines for real-time event handling.
- Limitations:
- TTL-level only (not suitable for high-voltage or analog signals).
- Requires external power for driving high-current loads.
- Limited to PC systems with ISA bus interface.
Use Case Examples:
- Monitoring digital sensors and switches in automated production lines.
- Controlling relays, solenoids, and indicator lamps.
- Interfacing with programmable logic controllers (PLCs).
- Capturing digital signals from test equipment or encoders.
8. Standards & Compliance
- Bus Standard: ISA/AT bus compliant
- Electrical Isolation: Opto-coupler isolation between I/O and logic circuits
- Safety & EMC: CE marking for industrial electromagnetic compatibility
- Software Standards:
- Windows API-TOOL driver (Win32 API compatible)
- Linux API-TOOL driver (module-style device driver)
- LabVIEW VI-DAQ library (compatible with National Instruments’ DAQ VI format)
- Environmental Compliance: RoHS compliant (lead-free manufacturing)
Supported Operating Systems:
- Windows 10/8/7 (32-bit and 64-bit)
- Linux kernel 2.6 or later
Driver Features:
- License-free development and runtime use
- Supports DLL-based function calls for Windows
- Shared library interface for Linux
- Sample programs and documentation included
9. Additional Information
Warranty:
- Standard 1-year manufacturer warranty covering defects in materials and workmanship.
Technical Support:
- Comprehensive online resources, including driver downloads, manuals, and FAQs.
- Global technical support via CONTEC’s website (www.contec.com).
Maintenance:
- Periodic inspection of connectors and cables recommended.
- Keep board free from dust and moisture.
- Firmware and driver updates available through CONTEC’s support portal.
Software Updates:
- Regular updates for API-TOOL and VI-DAQ libraries ensure compatibility with new operating systems and development environments.
Service Options:
- Extended warranty and calibration services available upon request.
- Replacement parts and accessories can be ordered directly from CONTEC distributors.
### Summary
The CONTEC PIO-24/24(PC) is a robust, high-performance TTL-level digital I/O board designed for PC-based industrial control systems. With 48 total channels (24 input and 24 output), opto-isolated protection, and support for multiple interrupt lines, it provides a reliable interface for digital signal acquisition and control. Its compatibility with both Windows and Linux environments, along with LabVIEW integration, makes it a versatile solution for engineers and system integrators.
The board’s combination of high-speed response, flexible configuration, and industrial-grade reliability ensures dependable operation in demanding automation, testing, and data acquisition applications.
Key Advantages:
- 48-channel TTL bidirectional I/O
- Opto-isolated design for noise immunity
- Multiple interrupt support for real-time control
- Comprehensive software ecosystem (Windows, Linux, LabVIEW)
- Proven reliability from CONTEC’s industrial-grade product line
Ideal Applications:
- Factory automation and process control
- Machine vision and robotics
- Test and measurement systems
- Embedded control in industrial PCs
In summary, the PIO-24/24(PC) delivers a balanced combination of performance, flexibility, and reliability, making it a cornerstone component for digital control and monitoring in industrial computing environments.
Product Name: PIO-24/24(PC)
Article Number: PIO-24/24(PC)
Series: Digital I/O Interface Boards – TTL Bidirectional Series
Manufacturer: CONTEC Co., Ltd.
Product Type: TTL Bidirectional Digital I/O Board (48-channel)
Bus Interface: PC Bus (ISA/AT compatible)
Category: Industrial Automation – Measurement and Control Products
The CONTEC PIO-24/24(PC) is a 48-channel TTL-level bidirectional digital input/output interface card designed for PC-based industrial control and measurement systems. It provides 24 input and 24 output channels, supporting TTL-level logic signals. The board is engineered for high-speed, reliable digital communication between external devices and a host PC, making it suitable for automation, data acquisition, and control applications.
2. Key Features
- 48 Total Channels: 24 digital input and 24 digital output channels, TTL-level, bidirectional configuration.
- TTL Logic Compatibility: Operates at standard 5VDC TTL logic levels, ensuring compatibility with a wide range of digital devices and controllers.
- Opto-Isolated Interface: Provides electrical isolation between the PC and external circuits to prevent noise interference and protect the host system.
- Interrupt Support: Supports up to four interrupt request lines (IRQ3–7/9), allowing event-driven control and efficient CPU utilization.
- Connector Interfaces: Equipped with a 37-pin D-sub connector and a 30-pin flat cable connector for flexible wiring and external device connection.
- Compact Form Factor: Board dimensions of approximately 340.5 mm × 107 mm, suitable for standard PC expansion slots.
- High-Speed Response: Designed for fast digital signal processing, suitable for real-time control and monitoring.
- Software Support: Compatible with CONTEC’s API-TOOL drivers for Windows and Linux, and VI-DAQ library for LabVIEW integration.
- Industrial Reliability: Built for continuous operation in industrial environments, with robust circuit protection and stable performance.
3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Model | PIO-24/24(PC) |
| Bus Interface | PC Bus (ISA/AT compatible) |
| Input Channels | 24 channels (TTL-level) |
| Output Channels | 24 channels (TTL-level) |
| Total I/O Points | 48 |
| Signal Type | TTL (5VDC logic) |
| Input Voltage Range | 0–5VDC |
| Output Voltage Range | 0–5VDC |
| Input Resistance | Approx. 10 kΩ (pull-up) |
| Output Type | Open collector (negative logic) |
| Output Current Capacity | 40 mA per channel (max) |
| Response Time | 200 nsec (input), 1 µsec (output) |
| Interrupt Lines | 4 (IRQ3–7/9 selectable) |
| Isolation | Opto-coupler isolation between I/O and logic circuits |
| Connectors | 37-pin D-sub female + 30-pin flat cable header |
| Dimensions | 340.5 mm (L) × 107 mm (H) |
| Power Supply | +5VDC from PC bus |
| Power Consumption | Approx. 400 mA (max) |
| Wiring Distance | Up to 5 m (recommended) |
| Operating Temperature | 0–50°C |
| Storage Temperature | -10–60°C |
| Humidity | 10–90% RH (non-condensing) |
| Weight | Approx. 200 g |
| Mounting | Standard PC expansion slot |
| Compliance | CE marking (industrial EMC compliance) |
4. Functionality
The PIO-24/24(PC) functions as a digital interface board that allows a PC to communicate with external digital devices such as sensors, switches, relays, and actuators. Each of the 48 channels can be configured as either input or output, enabling flexible control schemes.
- Input Function: The 24 input channels accept TTL-level signals (0–5VDC). These inputs can detect logic states from external devices and can be used to trigger interrupts for event-driven processing.
- Output Function: The 24 output channels provide TTL-level open collector outputs capable of driving external logic circuits, LEDs, or relays.
- Bidirectional Operation: Channels can be configured for input or output operation, allowing dynamic control of data flow.
- Interrupt Handling: The board supports up to four interrupt request lines (IRQ3–7/9), enabling real-time response to external events.
- Applications:
- Industrial automation and process control
- Machine monitoring and control systems
- Data acquisition and digital signal processing
- Laboratory instrumentation and test systems
- Embedded control in manufacturing environments
Compatibility:
The board is compatible with standard PC/AT bus systems and can be integrated into legacy or modern industrial PCs using ISA expansion slots. It supports Windows and Linux operating systems through CONTEC’s driver packages and can be programmed using C/C++, Visual Basic, or LabVIEW environments.
5. Components & Accessories
Included Items:
- PIO-24/24(PC) main board
- User manual and installation guide
- Driver software (API-TOOL for Windows/Linux)
- LabVIEW VI-DAQ library (downloadable)
Optional Accessories:
- Cables:
- PCB37P or PCB37PS (37-pin D-sub cable)
- PCB30P (30-pin flat cable)
- Terminal Blocks:
- EPD-37A, EPD-37 (for D-sub connection)
- CM-32(PC)E (for flat cable connection)
- Connector Sets:
- CN5-D37M (D-sub male connector)
- CN5-H96F (half-pitch connector for extended I/O)
These accessories facilitate easy wiring between the board and external devices, ensuring reliable signal transmission and simplified maintenance.
6. Installation & Setup
Requirements:
- IBM PC/AT compatible computer with available ISA expansion slot
- +5VDC power supply from PC bus
- Supported operating system (Windows or Linux)
Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the PIO-24/24(PC) board into an available ISA slot.
3. Secure the board with the mounting screw.
4. Connect external devices using the 37-pin D-sub or 30-pin flat cable connector.
5. Install the driver software (API-TOOL or VI-DAQ).
6. Configure I/O addresses and interrupt settings via software or jumper switches.
7. Verify operation using the provided diagnostic utility.
Mounting Options:
- Standard full-size ISA slot mounting
- Compatible with industrial PC chassis and rackmount systems
Configuration:
- I/O address and IRQ lines can be set via DIP switches or software configuration.
- Supports any 8-byte or 16-byte boundary for I/O mapping.
7. Performance & Capabilities
- Speed: Input response time of 200 nanoseconds and output response time of 1 microsecond, enabling high-speed digital control.
- Capacity: 48 total I/O points (24 input + 24 output).
- Efficiency: Low power consumption (approx. 400 mA at 5VDC).
- Reliability: Opto-isolated design minimizes electrical noise and prevents damage from voltage surges.
- Interrupt Performance: Supports multiple interrupt lines for real-time event handling.
- Limitations:
- TTL-level only (not suitable for high-voltage or analog signals).
- Requires external power for driving high-current loads.
- Limited to PC systems with ISA bus interface.
Use Case Examples:
- Monitoring digital sensors and switches in automated production lines.
- Controlling relays, solenoids, and indicator lamps.
- Interfacing with programmable logic controllers (PLCs).
- Capturing digital signals from test equipment or encoders.
8. Standards & Compliance
- Bus Standard: ISA/AT bus compliant
- Electrical Isolation: Opto-coupler isolation between I/O and logic circuits
- Safety & EMC: CE marking for industrial electromagnetic compatibility
- Software Standards:
- Windows API-TOOL driver (Win32 API compatible)
- Linux API-TOOL driver (module-style device driver)
- LabVIEW VI-DAQ library (compatible with National Instruments’ DAQ VI format)
- Environmental Compliance: RoHS compliant (lead-free manufacturing)
Supported Operating Systems:
- Windows 10/8/7 (32-bit and 64-bit)
- Linux kernel 2.6 or later
Driver Features:
- License-free development and runtime use
- Supports DLL-based function calls for Windows
- Shared library interface for Linux
- Sample programs and documentation included
9. Additional Information
Warranty:
- Standard 1-year manufacturer warranty covering defects in materials and workmanship.
Technical Support:
- Comprehensive online resources, including driver downloads, manuals, and FAQs.
- Global technical support via CONTEC’s website (www.contec.com).
Maintenance:
- Periodic inspection of connectors and cables recommended.
- Keep board free from dust and moisture.
- Firmware and driver updates available through CONTEC’s support portal.
Software Updates:
- Regular updates for API-TOOL and VI-DAQ libraries ensure compatibility with new operating systems and development environments.
Service Options:
- Extended warranty and calibration services available upon request.
- Replacement parts and accessories can be ordered directly from CONTEC distributors.
### Summary
The CONTEC PIO-24/24(PC) is a robust, high-performance TTL-level digital I/O board designed for PC-based industrial control systems. With 48 total channels (24 input and 24 output), opto-isolated protection, and support for multiple interrupt lines, it provides a reliable interface for digital signal acquisition and control. Its compatibility with both Windows and Linux environments, along with LabVIEW integration, makes it a versatile solution for engineers and system integrators.
The board’s combination of high-speed response, flexible configuration, and industrial-grade reliability ensures dependable operation in demanding automation, testing, and data acquisition applications.
Key Advantages:
- 48-channel TTL bidirectional I/O
- Opto-isolated design for noise immunity
- Multiple interrupt support for real-time control
- Comprehensive software ecosystem (Windows, Linux, LabVIEW)
- Proven reliability from CONTEC’s industrial-grade product line
Ideal Applications:
- Factory automation and process control
- Machine vision and robotics
- Test and measurement systems
- Embedded control in industrial PCs
In summary, the PIO-24/24(PC) delivers a balanced combination of performance, flexibility, and reliability, making it a cornerstone component for digital control and monitoring in industrial computing environments.
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