B&B Electronics VFG3000 - Manual - Manual (Page 8)

T ABLE OF C ONTENTS V LINX F IELDBUS G ATEWAY M ANAGER U SER M ANUAL
P AGE VI
C
OMPACT
F
LASH
A
CCESS
................................................................................. 164
A CCESSING THE W EB S ERVER .......................................................................... 165
U SING E THERNET ......................................................................................................................... 165
U SING M ODEMS ........................................................................................................................... 165
W EB S ERVER S AMPLES ................................................................................... 166
U SING THE S ECURITY S YSTEM ....................................................................... 169
S ECURITY B ASICS ......................................................................................... 169
O BJECT -B ASED S ECURITY ............................................................................................................... 169
N AMED U SERS ............................................................................................................................. 169
U SER R IGHTS .............................................................................................................................. 170
A CCESS C ONTROL ......................................................................................................................... 170
W RITE L OGGING .......................................................................................................................... 170
D EFAULT A CCESS ......................................................................................................................... 171
O N -D EMAND L OGON ..................................................................................................................... 171
M AINTENANCE A CCESS .................................................................................................................. 171
S ECURITY S ETTINGS ..................................................................................... 171
C
REATING
U
SERS
......................................................................................... 172
S PECIFYING T AG S ECURITY ............................................................................. 173
S
PECIFYING
P
AGE
S
ECURITY
............................................................................ 173
T HE S ECURITY M ANAGER P RIMITIVE .................................................................. 173
S ECURITY R ELATED F UNCTIONS ....................................................................... 173
W
RITING
E
XPRESSIONS
............................................................................... 174
D ATA V ALUES .............................................................................................. 174
C ONSTANTS ................................................................................................................................ 174
T AG V ALUES ................................................................................................................................ 176
C OMMUNICATIONS R EFERENCES ....................................................................................................... 176
S IMPLE M ATH .............................................................................................. 176
O PERATOR P RIORITY ..................................................................................... 176
T
YPE
C
ONVERSION
....................................................................................... 177
C OMPARING V ALUES ...................................................................................... 177
T
ESTING
B
ITS
............................................................................................. 178
M ULTIPLE C ONDITIONS .................................................................................. 178
C
HOOSING
V
ALUES
....................................................................................... 179
M ANIPULATING B ITS ..................................................................................... 179
A ND , O R AND XOR ....................................................................................................................... 179
S HIFT O PERATORS ........................................................................................................................ 179
B ITWISE NOT ............................................................................................................................. 180
I NDEXING A RRAYS ........................................................................................ 180
I NDEXING S TRINGS ....................................................................................... 180
A DDING S TRINGS ......................................................................................... 180
C
ALLING
P
ROGRAMS
...................................................................................... 180
U SING F UNCTIONS ........................................................................................ 180
P
RIORITY
S
UMMARY
...................................................................................... 181
W RITING A CTIONS ..................................................................................... 183