- Combines application-watchdog logic with two digital inputs and two digital outputs
- Connects through the CI858 optical I/O-ring architecture
- Uses dedicated NWIO1DI and NWIO1DO control-application function blocks
NWIO-01 64168533 is ABB's NWIO option unit for DriveBus supervision and small-scale digital I/O exchange.
The hardware monitors controller-application operation and transfers field states through the configured optical ring, with a selectable watchdog relationship for the documented output.
Before installation, verify product ID, field-voltage execution, I/O mapping, optical-ring order, watchdog timing, switch position, and CI858 software configuration.
Availability, condition, price, and shipping time for NWIO-01 64168533 are confirmed during quotation.
ABB NWIO-01 64168533 Watchdog and Digital I/O Option Unit Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Select the documented 0.2 s or 1 s watchdog behavior for the application
- Verify whether the hardware switch associates the watchdog with DO2
- Test the safe output response when controller communication is intentionally interrupted
- Place the unit in the configured CI858 optical I/O ring
- Preserve optical-ring order and dataset mapping during replacement
- Confirm ring communication before enabling dependent drive functions
- Use NWIO1DI to read the documented input signals
- Use NWIO1DO to command and supervise the output signals
- Match DI voltage execution and field wiring to the installed unit
- Watchdog supervision of an AC 800M drive-control application
- Digital field-input acquisition through a CI858 optical I/O ring
- Digital output control for DriveBus-connected auxiliary or status circuits