Yes, you can.
The following TOS series featuring the control CPU and the memory can save the panel settings until they are turned on again:

• TOS9300 series
• TOS9200 series
• TOS7200
• TOS6200(A)/TOS6210
• TOS5300 series
• TOS5200
• TOS3200

Note: TOS series will be initialized during a repair or calibration. Please record your settings, if necessary.