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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.
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In this section |
See also |
These ports represent the bulk of the GPIO functionality. Each of these ports can be configured as follows:
Digital Output |
3.0V TTL logic - Low: 0VDC - 0.4VDC; |
Digital Input |
3.0V TTL logic - Low: 0VDC - 0.8VDC; |
Analog Input |
Using external, regulated 24VDC supply. |
Rotary encoder |
Requires 2 pins and a common. |
Four Form C relays are available for general purpose usage. These are user configurable from within NWare.
A hardware fault indicator that shows that the CAB is working correctly, or that an internal fault has occurred.
Note: On the main board of the CAB 4n is an EPROM slot referred to as U22. This contains an EPROM specifically programmed for the type of CAB (CM-1 or CM-2). If an incorrectly programmed EPROM has been fitted, the mismatch can be identified using CobraNet Discovery, but the fault relay may not necessarily be triggered.