1600 series is not a supported device by Mini-RMON in ciscoView
The supported devices can be found in the online help and they are:
Catalyst 3750, 3560, 2820, 1900, 2900XL, 2950, 2955, 2970, 3500XL, 3550, 3750, 5000, 5500, 4000, 4000 IOS, 4500, 6000, 6000 IOS, 6500, 7609
The online help will show the exact sysObjectID's