Basic Information

Model: PC-DIO-96/PNP

Bus: ISA 16-bit

Type: 96-channel programmable digital I/O, PNP open-collector output

Status: Out of Production (EOL)

Position: Old-fashioned industrial ISA bus, compatible with PLCs, relays, 24V industrial sensor switch quantity control

Core hardware specifications

Total number of channels: 96 bidirectional digital I/O

Architecture: 4 Intel 82C55 chips, each chip has 24 channels, divided into 3 8-bit ports

Each port can be independently configured: input/output/handshake mode

Output structure: PNP collector open circuit (current-sensing input, PNP source-type output)

External power supply: supports 5~24 VDC industrial power supply

Single channel driving capability:

Output current-sensing: maximum 50 mA/channel

Total port current-limiting: ≤ 200 mA per 24-port

Input level: compatible with TTL / 24V industrial switch quantity

Functional features

Supports hardware interrupts, handshake I/O, event triggering

Can be software-set default input/output state upon power-on

Anti-interference design, suitable for industrial sites in workshops

Connector: 100-pin European high-density socket

Electrical and environmental

Board power supply: ISA bus +5V

Operating temperature: 0 ℃ ~ +70 ℃

Size: ISA standard half-length card

Software compatibility

Driver: Traditional NI-DAQ Legacy

Compatible systems: DOS, Win3.x, Win95, Win98, WinNT, WinXP

Does not support Win7/10/11, no DAQmx driver

Key differences

PC-DIO-96: Standard TTL push-pull output, only 5V logic

PC-DIO-96/PNP: PNP collector open circuit, can be externally connected with 5~24V, directly drive relays, solenoids, NPN sensors, dedicated for industrial sites

Modern alternative models

PCI-6508: PCI bus 96-channel DIO, compatible functions

PXI-6508: PXI bus version

Isolation alternative: PCI-6514 / PCI-6515 with photoelectric isolation, stronger anti-interference capability