APPENDIX A: DEFAULT ROLE-BASED ACCESS CONTROL MODEL
D20MX INSTRUCTION MANUAL GE INFORMATION 105
Table 45: Read access flags for SEL DCA (Application number: 78))
Table 46: Modify access flags for IEC 60870-5-101/104 DPA (Application number: 101)
Table 47: Read access flags for IEC 60870-5-101/104 DPA (Application number: 101)
Table 48: Modify access flags for Landis & Gyr 8979 DPA (Application number: 185)
Table 49: Read access flags for Landis & Gyr 8979 DPA (Application number: 185)
Bit 
Position
Description Administrator 
(2)
Engineer 
(1)
Operator 
(3)
Observer 
(0)
0 Any Page Yes Yes Yes Yes
1 Not Used Yes Yes Yes No
2 Show relay level 1 password Yes Yes No No
3 Not Used Yes Yes Yes No
4 Show relay level 2 password Yes Yes No No
5 - 7 Not Used Yes Yes Yes No
8 Show MUX level 1 password Yes Yes No No
9-31 Not Used Yes Yes Yes No
Bit 
Position
Description Administrator 
[2]
Engineer 
[1]
Operato
r [3]
Observer 
[0]
0 Not Used Yes Yes Yes No
1 - 31 Not Used Yes Yes Yes No
Bit 
Position
Description Administrator 
[2]
Engineer 
[1]
Operato
r [3]
Observer 
[0]
0 Any Page Yes Yes Yes Yes
1 - 31 Not Used Yes Yes Yes No
Bit 
Position
Description Administrator 
[2]
Engineer 
[1]
Operato
r [3]
Observer 
[0]
0 Not Used Yes Yes Yes No
1 Force / Unforce Point, Delete All or 
Delete to Cursor in SOE Log Display
Yes Yes Yes No
2 Freeze Accumulator Yes Yes Yes No
3 - 31 Not Used Yes Yes Yes No
Bit 
Position
Description Administrator 
[2]
Engineer 
[1]
Operato
r [3]
Observer 
[0]
0 Main Display Yes Yes Yes Yes
1 Analog Input Display Yes Yes Yes Yes
2 ADC Reference Display Yes Yes Yes Yes
3 Indication, SOE or Digital Input Display  Yes Yes Yes Yes
4 Accumulator Display Yes Yes Yes Yes
5 SOE Log Display Yes Yes Yes Yes
6 Analog Output Display Yes Yes Yes Yes
7 Digital Output Display Yes Yes Yes Yes
8 LRU Configuration Display Yes Yes Yes Yes
9 Cross References Display Yes Yes Yes Yes
10 - 31 Not Used Yes Yes Yes No