4 | XIO USER MANUAL | 2106424MNAA
5 Calibration ........................................................................................................................... 97
6 Basic troubleshooting .......................................................................................................... 98
6.1 RMC unable to detect or communicate with the XIO .......................................................... 98
6.1.1 Verify RMC-XIO connection (physical connection) ................................................. 99
6.1.2 Verify the IP parameter configuration (IP communication) ....................................101
6.2 XIO applications not displaying on the RMC .....................................................................104
6.3 RMC failure to receive data from XIO passthrough ............................................................105
6.3.1 Missing or mismatched TCP port .......................................................................106
6.3.2 Missing or incorrect XIO serial port ....................................................................107
6.3.3 Incorrect protocol selection ..............................................................................108
6.3.4 Mismatched serial communication parameters ....................................................109
6.4 Fail Safe Watchdog alarm does not clear .........................................................................111
7 Additional procedures ........................................................................................................ 115
7.1 Enable SSH/SFTP ........................................................................................................115
7.2 Verify or add applications on the XIO .............................................................................115
8 Configure security (recommended) .................................................................................... 117
8.1 Access points ..............................................................................................................117
8.2 Communication interfaces.............................................................................................117
8.2.1 User-enabled services .....................................................................................118
8.2.2 Open Transmission Control Protocol (TCP) ports ..................................................118
8.3 Denial of service (DOS) threshold rates ..........................................................................120
8.4 Security guidelines ......................................................................................................120
8.5 Configure bi-level security with security switch ................................................................121
8.5.1 Configure non-default XIO security code on the RMC ...........................................123
8.6 Configure Role-Based Access Control (RBAC) ...................................................................123
8.6.1 Default access roles ........................................................................................124
8.6.2 Set up and create a new RBAC security control file ..............................................124
8.6.3 Edit the security file ........................................................................................126
8.6.4 Create a new user account ...............................................................................126
8.6.5 Enable RBAC authentication on communication ports ...........................................130
8.7 Secure the SSH/SFTP service ........................................................................................133
8.7.1 Supported SSH/SFTP accounts .........................................................................133
8.7.2 SSH/SFTP authentication .................................................................................134
8.7.3 Update default SSH/SFTP keys .........................................................................134
9 Service and maintenance ................................................................................................... 151
9.1 Preserve data and configuration ....................................................................................151
9.1.1 Collect data ...................................................................................................151
9.1.2 Save the device configuration ...........................................................................154
9.2 Restore the device configuration ....................................................................................159
9.3 Use the configuration from another XIO ..........................................................................162
9.4 Update device software ................................................................................................163