B&B Electronics VFG3000 - Manual - Manual (Page 298)

I S D EVICE O NLINE ( DEVICE ) V LINX F IELDBUS G ATEWAY M ANAGER U SER M ANUAL
P AGE 282
I
S
D
EVICE
O
NLINE
(
DEVICE
)
A RGUMENT T YPE D ESCRIPTION
device int Reports if device is online.
D ESCRIPTION
Reports if device is online or not. As device is marked as offline if a repeated sequence of
communications error have occurred. When a device is in the offline state, it will be polled
periodically to see if has returned online.
Note: The device number can be identified in Fieldbus Gateway Manager’s status bar when a
device is selected in Communication.
F
UNCTION
T
YPE
This function is passive.
R ETURN T YPE
int .
E XAMPLE
Okay := IsDeviceOnline(1)