GPIO overview

NION and CAB products include a versatile GPIO (General Purpose Input Output) system at the rear for terminating external logic, controls, relays and other external systems. Each control pin is supported by NWare for configuration, control and monitoring. Any combination of control pins may be used simultaneously, regardless of the configuration.

Caution: The pin assignments for the GPIO ports on the NION and CAB devices are not the same. Please be sure to check the documentation carefully when connecting devices to the ports.

Configurable general purpose ports (16 control pins)

These ports represent the bulk of the GPIO functionality. Each of these ports can be configured as follows:

• Digital In (3.0V TTL logic - Low: 0 VDC - 0.8 VDC; High: 2.0 VDC - 24 VDC)
• Digital Out (3.0V TTL logic - Low: 0V DC - 0.4 VDC; High: 2.4 VDC - 3.3 VDC)
• Analog In 1K, 12V (using external 12 VDC power source)
• Analog In 10K, 12V (using external 12 VDC power source)
• Analog In 10K, 24V (using external 24 VDC power source)
• Analog In 1K, self powered (pin feeds required voltage through pot or switch to common)
• Analog In 10K, self powered (pin feeds required voltage through pot or switch to common)
• Rotary Encoder (requires 2 pins and a common)
• Raw (all modes available, software configurable)
• Clock signals on pins 6-8.