Operating Instructions
IS1 PROFIBUS 3.00 E
- Technical alterations reserved -
35
PROFIBUS DP interface for IS1+
Logic for controlling data update in the AS:
Initialization of the
data memory of the
application
Left CPU
active ?
Right CPU
active ?
Exchange of data
area application
with data area CPU
Right
Total loss of IS1
fieldstation.
Reaction of application
according project
requirements
Exchange of data
area application with
data area CPU
Left
write control register
CPU to data area
CPU left and
CPU right
Yes
Yes
No
No
