Function Blocks - FM 458-1 DP
4-1
Edition 03.2003
4 Service-/diagnostic
blocks
4.1 FMLED Control FM 458-1 DP diagnostics LED
FMLED
LED (user error)
―
I
AWF
QF
BO
―
error output
LED (online monitoring)
―
I
ONL
LED (communications error)
―
I
COM
LED (sampling time overflow)
―
I
CYC
The function block, which controls the FM 458-1 DP diagnostic LEDs,
can only run with an FM 458-1 DP application module.
The LEDs of the FM 458-1 DP
application module can be controlled
using this block.
The LED display is canceled for a value of 0 at the appropriate input; for
a value of 1, it is set and for a value of -1, its status is retained,
unchanged. The value of -1 is required, as this block has been configured
a multiple number of times.
Output QF has the value 1, if the inputs have invalid values, or if the
block is not configured on the FM 458-1 DP application module.
AWF
LED for user error
(default: -1)
ONL
LED for online monitoring
(default: -1)
COM
LED for communications error
(default: -1)
CYC
LED for sampling time overflow
(default: -1)
QF
Error output
(default: 0)
Computation time [µs]
FM 458-1 DP
1,0
Available online
yes
Can be configured in
Interrupt tasks
Cyclic tasks
Executed in
Normal mode
Initialization mode
Special features
-
Symbol
Brief description
Mode of operation
I/O
Configuringdata