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- Opto‑Isolated I/O:
All input and output channels are isolated from the PC’s internal logic circuits via opto‑couplers, providing up to 5 kV isolation to protect against electrical noise, surges, and ground potential differences.
- 16 × 16 Channel Configuration:
Provides 16 digital input channels and 16 digital output channels, each independently opto‑isolated for robust signal integrity in noisy industrial environments.
- On‑Board 12 V Power Supply:
Integrated 12 VDC / 240 mA power source drives the photocoupler circuits, simplifying installation and reducing external wiring requirements.
- Wide Input Voltage Range:
Accepts TTL or 12 – 24 VDC input levels with 3 kΩ input resistance, allowing direct connection to a variety of sensors, switches, and logic devices.
- Open‑Collector Outputs:
Output channels are open‑collector type, rated for up to 35 VDC and 200 mA per channel, suitable for driving relays, lamps, and other DC loads.
- Interrupt Capability:
All 16 input signals can be configured as interrupt sources. Up to two interrupt lines (IRQ 2–7 / 9) can be used simultaneously, enabling event‑driven control.
- Fast Response:
Typical response time is within 200 µs, ensuring reliable high‑speed digital signal processing.
- Surge and Overcurrent Protection:
Output transistors include built‑in protection circuits (Zener diodes and current limiting) to guard against voltage surges and overcurrent conditions.
- Compact ISA Form Factor:
Standard ISA AT‑bus board size (163 mm × 122 mm) fits most industrial PCs and legacy control systems.
- Comprehensive Software Support:
Compatible with CONTEC’s API‑PAC(W32) driver library for Windows and Linux, and supported by LabVIEW VI‑DAQ libraries for rapid application development.
All input and output channels are isolated from the PC’s internal logic circuits via opto‑couplers, providing up to 5 kV isolation to protect against electrical noise, surges, and ground potential differences.
- 16 × 16 Channel Configuration:
Provides 16 digital input channels and 16 digital output channels, each independently opto‑isolated for robust signal integrity in noisy industrial environments.
- On‑Board 12 V Power Supply:
Integrated 12 VDC / 240 mA power source drives the photocoupler circuits, simplifying installation and reducing external wiring requirements.
- Wide Input Voltage Range:
Accepts TTL or 12 – 24 VDC input levels with 3 kΩ input resistance, allowing direct connection to a variety of sensors, switches, and logic devices.
- Open‑Collector Outputs:
Output channels are open‑collector type, rated for up to 35 VDC and 200 mA per channel, suitable for driving relays, lamps, and other DC loads.
- Interrupt Capability:
All 16 input signals can be configured as interrupt sources. Up to two interrupt lines (IRQ 2–7 / 9) can be used simultaneously, enabling event‑driven control.
- Fast Response:
Typical response time is within 200 µs, ensuring reliable high‑speed digital signal processing.
- Surge and Overcurrent Protection:
Output transistors include built‑in protection circuits (Zener diodes and current limiting) to guard against voltage surges and overcurrent conditions.
- Compact ISA Form Factor:
Standard ISA AT‑bus board size (163 mm × 122 mm) fits most industrial PCs and legacy control systems.
- Comprehensive Software Support:
Compatible with CONTEC’s API‑PAC(W32) driver library for Windows and Linux, and supported by LabVIEW VI‑DAQ libraries for rapid application development.
Comprehensive Product Summary – PIO‑16/16B(PC)H Opto‑Isolated 16/16‑Channel Digital I/O ISA Card with On‑Board Power
### 1. Product Overview
Product Name: Opto‑Isolated 16/16‑Channel Digital Input/Output ISA Card with On‑Board Power
Model Number: PIO‑16/16B(PC)H
Article Number: PIO‑16/16B(PC)H
Series: PIO Series – Digital I/O Interface Boards
Manufacturer: CONTEC Co., Ltd. (Japan)
Product Category: Industrial Automation / Measurement and Control – Digital I/O Interface Boards
Bus Type: ISA (AT‑Bus)
Product Type: Opto‑Isolated Digital I/O Board with Integrated Power Supply
The CONTEC PIO‑16/16B(PC)H is an opto‑isolated digital input/output interface card designed for ISA‑bus computers. It provides 16 optically isolated digital input channels and 16 optically isolated open‑collector output channels. The board integrates a 12 VDC on‑board power supply to drive its photocoupler circuits, eliminating the need for an external power source. It is engineered for industrial automation, process control, and data acquisition systems requiring reliable isolation between field I/O and host PC logic.
### 2. Key Features
- Opto‑Isolated I/O:
All input and output channels are isolated from the PC’s internal logic circuits via opto‑couplers, providing up to 5 kV isolation to protect against electrical noise, surges, and ground potential differences.
- 16 × 16 Channel Configuration:
Provides 16 digital input channels and 16 digital output channels, each independently opto‑isolated for robust signal integrity in noisy industrial environments.
- On‑Board 12 V Power Supply:
Integrated 12 VDC / 240 mA power source drives the photocoupler circuits, simplifying installation and reducing external wiring requirements.
- Wide Input Voltage Range:
Accepts TTL or 12 – 24 VDC input levels with 3 kΩ input resistance, allowing direct connection to a variety of sensors, switches, and logic devices.
- Open‑Collector Outputs:
Output channels are open‑collector type, rated for up to 35 VDC and 200 mA per channel, suitable for driving relays, lamps, and other DC loads.
- Interrupt Capability:
All 16 input signals can be configured as interrupt sources. Up to two interrupt lines (IRQ 2–7 / 9) can be used simultaneously, enabling event‑driven control.
- Fast Response:
Typical response time is within 200 µs, ensuring reliable high‑speed digital signal processing.
- Surge and Overcurrent Protection:
Output transistors include built‑in protection circuits (Zener diodes and current limiting) to guard against voltage surges and overcurrent conditions.
- Compact ISA Form Factor:
Standard ISA AT‑bus board size (163 mm × 122 mm) fits most industrial PCs and legacy control systems.
- Comprehensive Software Support:
Compatible with CONTEC’s API‑PAC(W32) driver library for Windows and Linux, and supported by LabVIEW VI‑DAQ libraries for rapid application development.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | ISA AT‑Bus |
| Input Channels | 16 opto‑isolated inputs |
| Output Channels | 16 opto‑isolated open‑collector outputs |
| Input Type | Opto‑isolated (for high sink current output) |
| Input Signal Level | TTL / 12 – 24 VDC |
| Input Resistance | 3 kΩ |
| Output Type | Opto‑isolated open‑collector (current sinking type) |
| Output Rating | 35 VDC max., 200 mA max. per channel |
| Isolation Voltage | Up to 5 kV between I/O and PC logic |
| Response Time (Max.) | 1 ms (typical 200 µs) |
| Internal Power Supply | On‑board 12 VDC 240 mA for photocoupler drive |
| External Power Requirement | +5 VDC 50 mA (external) / +5 VDC 800 mA (on‑board) |
| Interrupts | 2 IRQ lines selectable from IRQ 2–7 / 9–12 / 14–15 |
| I/O Address | Any 8‑byte or 16‑byte boundary (configurable) |
| Wiring Distance | Up to 50 m (max.) |
| Dimensions | 163 mm (L) × 122 mm (H) (6.5 in × 4.75 in) |
| Connector Type | 37‑pin D‑SUB female (DCL‑J37SAF‑20L9 [JAE] or equivalent) |
| Weight | Approx. 200 g |
| Operating Temperature | 0 – 50 °C (typical) |
| Storage Temperature | –20 – 60 °C (typical) |
| Humidity | 10 – 90 % RH (non‑condensing) |
| Power Consumption | 5 VDC 50 mA (external) / 800 mA (on‑board) |
| Mounting | Internal ISA slot |
| Isolation Method | Opto‑coupler isolation between I/O and logic circuits |
### 4. Functionality
The PIO‑16/16B(PC)H functions as a digital interface between field devices and an ISA‑bus computer. Each input channel receives external DC signals (12–24 VDC) through an opto‑coupler, converting them into logic‑level signals for the host system. The opto‑isolation ensures that electrical noise or surges from external equipment do not affect the PC.
Output channels use open‑collector transistors to switch external loads such as relays, solenoids, or indicator lamps. The outputs can sink up to 200 mA per channel at 35 VDC maximum. Built‑in surge suppression and current limiting protect the output transistors from transient voltages.
The board’s on‑board 12 V power supply drives the opto‑couplers, eliminating the need for an external 12 V source. The board supports interrupt‑driven operation, allowing input changes to trigger immediate software responses. Typical applications include:
- Industrial process monitoring and control
- Machine automation and PLC interfacing
- Data acquisition and event logging
- Laboratory instrumentation
- Relay and actuator control
- Safety interlock and alarm systems
The board is compatible with CONTEC’s API‑PAC(W32) driver library, enabling easy integration with Windows or Linux applications. It can also be accessed via LabVIEW using the VI‑DAQ library.
### 5. Components & Accessories
Included Components:
- PIO‑16/16B(PC)H ISA board
- User manual and setup guide
- Software driver package (API‑PAC(W32) for Windows, Linux driver modules)
- LabVIEW VI‑DAQ library (downloadable)
Optional Accessories:
- Cables:
- PCA37P / PCB37P (37‑pin D‑SUB cable, 1.5 m)
- PCA37PS / PCB37PS (shielded 37‑pin cable, 0.5 m / 1.5 m)
- Terminal Blocks:
- EPD‑37 / EPD‑37A (37‑pin D‑SUB terminal block)
- CM‑32(PC)E (screw terminal module)
- Connector Sets:
- CN5‑D37M (37‑pin D‑SUB male connector kit)
All accessories are available from CONTEC to facilitate wiring and system integration.
### 6. Installation & Setup
System Requirements:
- IBM PC/AT compatible computer with available ISA AT‑bus slot
- +5 VDC power supply from system bus
- Supported operating systems: Windows (32/64‑bit) / Linux
Installation Steps:
1. Power off the host PC and remove the cover.
2. Insert the PIO‑16/16B(PC)H into an available ISA slot.
3. Secure the board with the mounting screw.
4. Connect external devices to the 37‑pin D‑SUB connector using the recommended cable.
5. Configure I/O address and interrupt settings via DIP switches or software utility.
6. Install the API‑PAC(W32) or Linux driver package.
7. Verify operation using the provided diagnostic utility or LabVIEW VI‑DAQ test panel.
Mounting Options:
Standard internal mounting in ISA slot; external I/O wiring via 37‑pin D‑SUB connector to terminal block or breakout module.
Configuration:
I/O address and IRQ lines are selectable. The board occupies four I/O ports and supports up to two simultaneous interrupt lines.
### 7. Performance & Capabilities
- Input Performance:
- Voltage range: 12 – 24 VDC (±10 %)
- Input current: 4 mA @ 12 V, 8 mA @ 24 V
- Input resistance: 3 kΩ
- Response time: ≤ 1 ms (typical 200 µs)
- Isolation: Opto‑coupler, 5 kV max.
- Output Performance:
- Type: Open‑collector (NPN transistor, current sinking)
- Voltage: ≤ 35 VDC
- Current: ≤ 200 mA per channel
- Protection: Zener diode for surge suppression and current limiting
- Response time: ≤ 1 ms
- Interrupt Handling:
- 16 input signals can generate interrupts
- Two IRQ lines selectable from IRQ 2–7 / 9–12 / 14–15
- Software‑configurable trigger edges (rising / falling)
- Efficiency & Reliability:
- On‑board power supply reduces external wiring and power loss
- Opto‑isolation prevents ground loops and noise interference
- Designed for continuous industrial operation in harsh environments
- Limitations:
- ISA bus interface limits use to legacy or industrial PCs with ISA slots
- Output current limited to 200 mA per channel (max.)
- Not suitable for AC load switching without external relay interface
### 8. Standards & Compliance
- Bus Standard: ISA AT‑Bus compliant
- Electrical Isolation: Opto‑coupler isolation up to 5 kV
- Safety & EMC: Designed to meet industrial EMC and safety requirements for I/O boards
- Environmental Compliance: RoHS compliant (manufacturer specification)
- Software Standards: Compatible with Windows Win32 API and Linux device driver standards
- Quality Assurance: Manufactured under CONTEC’s ISO 9001 quality management system
### 9. Additional Information
Warranty:
Standard one‑year manufacturer’s warranty covering defects in materials and workmanship.
Technical Support:
CONTEC provides comprehensive technical support through its global portal (www.contec.com), including driver downloads, software updates, and application notes.
Maintenance:
No routine maintenance required. Periodic inspection of connectors and cables is recommended to ensure signal integrity. Avoid exposure to excessive dust or moisture.
Software & Updates:
- API‑PAC(W32): Windows driver library with DLL functions for C/C++ and Visual Basic.
- Linux Driver: Open‑source module and shared library for kernel‑level access.
- LabVIEW VI‑DAQ: Free downloadable library for National Instruments LabVIEW integration.
- Firmware: No user‑upgradable firmware required.
Support Resources:
- User manual and installation guide (PDF)
- Sample source code and API reference
- Cable and terminal block wiring diagrams
- Compatibility list for supported operating systems
Ordering Information:
- Model: PIO‑16/16B(PC)H
- Description: Opto‑Isolated 16/16 Channel Digital I/O ISA Card with On‑Board 12 V Power
- Optional Accessories: PCB37P, PCB37PS, EPD‑37A, CM‑32(PC)E, CN5‑D37M
### Summary
The CONTEC PIO‑16/16B(PC)H is a robust, opto‑isolated digital I/O interface card for ISA‑bus systems, providing 16 input and 16 output channels with on‑board 12 V power for photocoupler operation. It offers high noise immunity, fast response, and comprehensive software support for Windows, Linux, and LabVIEW. With its built‑in surge protection, interrupt capability, and industrial‑grade design, the PIO‑16/16B(PC)H is ideal for machine control, process automation, and data acquisition applications requiring reliable electrical isolation and stable digital signal handling.
### 1. Product Overview
Product Name: Opto‑Isolated 16/16‑Channel Digital Input/Output ISA Card with On‑Board Power
Model Number: PIO‑16/16B(PC)H
Article Number: PIO‑16/16B(PC)H
Series: PIO Series – Digital I/O Interface Boards
Manufacturer: CONTEC Co., Ltd. (Japan)
Product Category: Industrial Automation / Measurement and Control – Digital I/O Interface Boards
Bus Type: ISA (AT‑Bus)
Product Type: Opto‑Isolated Digital I/O Board with Integrated Power Supply
The CONTEC PIO‑16/16B(PC)H is an opto‑isolated digital input/output interface card designed for ISA‑bus computers. It provides 16 optically isolated digital input channels and 16 optically isolated open‑collector output channels. The board integrates a 12 VDC on‑board power supply to drive its photocoupler circuits, eliminating the need for an external power source. It is engineered for industrial automation, process control, and data acquisition systems requiring reliable isolation between field I/O and host PC logic.
### 2. Key Features
- Opto‑Isolated I/O:
All input and output channels are isolated from the PC’s internal logic circuits via opto‑couplers, providing up to 5 kV isolation to protect against electrical noise, surges, and ground potential differences.
- 16 × 16 Channel Configuration:
Provides 16 digital input channels and 16 digital output channels, each independently opto‑isolated for robust signal integrity in noisy industrial environments.
- On‑Board 12 V Power Supply:
Integrated 12 VDC / 240 mA power source drives the photocoupler circuits, simplifying installation and reducing external wiring requirements.
- Wide Input Voltage Range:
Accepts TTL or 12 – 24 VDC input levels with 3 kΩ input resistance, allowing direct connection to a variety of sensors, switches, and logic devices.
- Open‑Collector Outputs:
Output channels are open‑collector type, rated for up to 35 VDC and 200 mA per channel, suitable for driving relays, lamps, and other DC loads.
- Interrupt Capability:
All 16 input signals can be configured as interrupt sources. Up to two interrupt lines (IRQ 2–7 / 9) can be used simultaneously, enabling event‑driven control.
- Fast Response:
Typical response time is within 200 µs, ensuring reliable high‑speed digital signal processing.
- Surge and Overcurrent Protection:
Output transistors include built‑in protection circuits (Zener diodes and current limiting) to guard against voltage surges and overcurrent conditions.
- Compact ISA Form Factor:
Standard ISA AT‑bus board size (163 mm × 122 mm) fits most industrial PCs and legacy control systems.
- Comprehensive Software Support:
Compatible with CONTEC’s API‑PAC(W32) driver library for Windows and Linux, and supported by LabVIEW VI‑DAQ libraries for rapid application development.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | ISA AT‑Bus |
| Input Channels | 16 opto‑isolated inputs |
| Output Channels | 16 opto‑isolated open‑collector outputs |
| Input Type | Opto‑isolated (for high sink current output) |
| Input Signal Level | TTL / 12 – 24 VDC |
| Input Resistance | 3 kΩ |
| Output Type | Opto‑isolated open‑collector (current sinking type) |
| Output Rating | 35 VDC max., 200 mA max. per channel |
| Isolation Voltage | Up to 5 kV between I/O and PC logic |
| Response Time (Max.) | 1 ms (typical 200 µs) |
| Internal Power Supply | On‑board 12 VDC 240 mA for photocoupler drive |
| External Power Requirement | +5 VDC 50 mA (external) / +5 VDC 800 mA (on‑board) |
| Interrupts | 2 IRQ lines selectable from IRQ 2–7 / 9–12 / 14–15 |
| I/O Address | Any 8‑byte or 16‑byte boundary (configurable) |
| Wiring Distance | Up to 50 m (max.) |
| Dimensions | 163 mm (L) × 122 mm (H) (6.5 in × 4.75 in) |
| Connector Type | 37‑pin D‑SUB female (DCL‑J37SAF‑20L9 [JAE] or equivalent) |
| Weight | Approx. 200 g |
| Operating Temperature | 0 – 50 °C (typical) |
| Storage Temperature | –20 – 60 °C (typical) |
| Humidity | 10 – 90 % RH (non‑condensing) |
| Power Consumption | 5 VDC 50 mA (external) / 800 mA (on‑board) |
| Mounting | Internal ISA slot |
| Isolation Method | Opto‑coupler isolation between I/O and logic circuits |
### 4. Functionality
The PIO‑16/16B(PC)H functions as a digital interface between field devices and an ISA‑bus computer. Each input channel receives external DC signals (12–24 VDC) through an opto‑coupler, converting them into logic‑level signals for the host system. The opto‑isolation ensures that electrical noise or surges from external equipment do not affect the PC.
Output channels use open‑collector transistors to switch external loads such as relays, solenoids, or indicator lamps. The outputs can sink up to 200 mA per channel at 35 VDC maximum. Built‑in surge suppression and current limiting protect the output transistors from transient voltages.
The board’s on‑board 12 V power supply drives the opto‑couplers, eliminating the need for an external 12 V source. The board supports interrupt‑driven operation, allowing input changes to trigger immediate software responses. Typical applications include:
- Industrial process monitoring and control
- Machine automation and PLC interfacing
- Data acquisition and event logging
- Laboratory instrumentation
- Relay and actuator control
- Safety interlock and alarm systems
The board is compatible with CONTEC’s API‑PAC(W32) driver library, enabling easy integration with Windows or Linux applications. It can also be accessed via LabVIEW using the VI‑DAQ library.
### 5. Components & Accessories
Included Components:
- PIO‑16/16B(PC)H ISA board
- User manual and setup guide
- Software driver package (API‑PAC(W32) for Windows, Linux driver modules)
- LabVIEW VI‑DAQ library (downloadable)
Optional Accessories:
- Cables:
- PCA37P / PCB37P (37‑pin D‑SUB cable, 1.5 m)
- PCA37PS / PCB37PS (shielded 37‑pin cable, 0.5 m / 1.5 m)
- Terminal Blocks:
- EPD‑37 / EPD‑37A (37‑pin D‑SUB terminal block)
- CM‑32(PC)E (screw terminal module)
- Connector Sets:
- CN5‑D37M (37‑pin D‑SUB male connector kit)
All accessories are available from CONTEC to facilitate wiring and system integration.
### 6. Installation & Setup
System Requirements:
- IBM PC/AT compatible computer with available ISA AT‑bus slot
- +5 VDC power supply from system bus
- Supported operating systems: Windows (32/64‑bit) / Linux
Installation Steps:
1. Power off the host PC and remove the cover.
2. Insert the PIO‑16/16B(PC)H into an available ISA slot.
3. Secure the board with the mounting screw.
4. Connect external devices to the 37‑pin D‑SUB connector using the recommended cable.
5. Configure I/O address and interrupt settings via DIP switches or software utility.
6. Install the API‑PAC(W32) or Linux driver package.
7. Verify operation using the provided diagnostic utility or LabVIEW VI‑DAQ test panel.
Mounting Options:
Standard internal mounting in ISA slot; external I/O wiring via 37‑pin D‑SUB connector to terminal block or breakout module.
Configuration:
I/O address and IRQ lines are selectable. The board occupies four I/O ports and supports up to two simultaneous interrupt lines.
### 7. Performance & Capabilities
- Input Performance:
- Voltage range: 12 – 24 VDC (±10 %)
- Input current: 4 mA @ 12 V, 8 mA @ 24 V
- Input resistance: 3 kΩ
- Response time: ≤ 1 ms (typical 200 µs)
- Isolation: Opto‑coupler, 5 kV max.
- Output Performance:
- Type: Open‑collector (NPN transistor, current sinking)
- Voltage: ≤ 35 VDC
- Current: ≤ 200 mA per channel
- Protection: Zener diode for surge suppression and current limiting
- Response time: ≤ 1 ms
- Interrupt Handling:
- 16 input signals can generate interrupts
- Two IRQ lines selectable from IRQ 2–7 / 9–12 / 14–15
- Software‑configurable trigger edges (rising / falling)
- Efficiency & Reliability:
- On‑board power supply reduces external wiring and power loss
- Opto‑isolation prevents ground loops and noise interference
- Designed for continuous industrial operation in harsh environments
- Limitations:
- ISA bus interface limits use to legacy or industrial PCs with ISA slots
- Output current limited to 200 mA per channel (max.)
- Not suitable for AC load switching without external relay interface
### 8. Standards & Compliance
- Bus Standard: ISA AT‑Bus compliant
- Electrical Isolation: Opto‑coupler isolation up to 5 kV
- Safety & EMC: Designed to meet industrial EMC and safety requirements for I/O boards
- Environmental Compliance: RoHS compliant (manufacturer specification)
- Software Standards: Compatible with Windows Win32 API and Linux device driver standards
- Quality Assurance: Manufactured under CONTEC’s ISO 9001 quality management system
### 9. Additional Information
Warranty:
Standard one‑year manufacturer’s warranty covering defects in materials and workmanship.
Technical Support:
CONTEC provides comprehensive technical support through its global portal (www.contec.com), including driver downloads, software updates, and application notes.
Maintenance:
No routine maintenance required. Periodic inspection of connectors and cables is recommended to ensure signal integrity. Avoid exposure to excessive dust or moisture.
Software & Updates:
- API‑PAC(W32): Windows driver library with DLL functions for C/C++ and Visual Basic.
- Linux Driver: Open‑source module and shared library for kernel‑level access.
- LabVIEW VI‑DAQ: Free downloadable library for National Instruments LabVIEW integration.
- Firmware: No user‑upgradable firmware required.
Support Resources:
- User manual and installation guide (PDF)
- Sample source code and API reference
- Cable and terminal block wiring diagrams
- Compatibility list for supported operating systems
Ordering Information:
- Model: PIO‑16/16B(PC)H
- Description: Opto‑Isolated 16/16 Channel Digital I/O ISA Card with On‑Board 12 V Power
- Optional Accessories: PCB37P, PCB37PS, EPD‑37A, CM‑32(PC)E, CN5‑D37M
### Summary
The CONTEC PIO‑16/16B(PC)H is a robust, opto‑isolated digital I/O interface card for ISA‑bus systems, providing 16 input and 16 output channels with on‑board 12 V power for photocoupler operation. It offers high noise immunity, fast response, and comprehensive software support for Windows, Linux, and LabVIEW. With its built‑in surge protection, interrupt capability, and industrial‑grade design, the PIO‑16/16B(PC)H is ideal for machine control, process automation, and data acquisition applications requiring reliable electrical isolation and stable digital signal handling.
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ContecCatalog2011-2012-en-H Digital IO.pdf
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