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 a 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.