NOTE: Starting in
Niagara 4.2, the JACE-8000 can be converted (downgraded) to run
AX-3.8U1–with some feature limitations. For example, for any JACE-8000 running
AX the USB functionality is not supported. In this configuration the USB port on the device is not monitored for insertion/removal
of devices.
Typical usage is for troubleshooting. However, in the case of IP address mis-configuration, you can use the serial system shell in order to regain access to the unit.
NOTE: Also, depending on your preference, you may wish to use the serial shell to set the JACE’s IP address, as an alternative to reconfiguring your PC’s IP address in Windows (to initially connect to a new JACE). If done as the first step, afterwards you could connect normally (Ethernet/IP) and perform all other
Niagara software installation/platform configuration using
Workbench and the Commissioning Wizard. This method would save you from having to re-configure your PC’s IP address settings in Windows:
first to connect to the JACE as shipped from the factory, and then back again to its original settings.
The following sections provide more details.