7-2
Section
Using Message Communications
98
Use the type of programming shown below. The programming shown at the top
will not always read the response properly.
Instructions to
read response
WRONG: Can Improperly Read Response
Execution
condition
Message
Communications
Enabled Flag
B
IOWR
A
B
A
25506
DIFU(13) C
A
SET D
C
RSET D
D
Message
Communications
Enabled Flag
CORRECT: Properly Reads Response
Instructions to
read response
Execution
condition
Message
Communications
Enabled Flag
B
IOWR
A
B
A
25506
DIFU(13) C
A
SET D
C
RSET D
D
Message
Communications
Enabled Flag