cylinder ackrx Simulate ping response. Gravure This command is intended for system debugging purposes only. This command is disabled if the 'drumdrive' option is enabled, since the drum driver and the PSI cylinder controller are mutually exclusive. This command is available. Developer 03-Jul-2001 ..\..\ShowAllErrors.htmFirmware 1 Error Index ..\..\ShowAllCommands.htmFirmware 1 Command Index ..\..\ShowAllParameters.htmFirmware 1 Parameter Index Updated: Thu Jul 17 07:24:26 2008 PST