2 Operating principle
Blocking Protection for Pumps with SIMOCODE pro V
Article ID: 109478058, V2.0, 09/2020
19
©
S
iem
e
n
s A
G
2020
A
ll r
igh
ts
re
se
rv
e
d
Cyclic send
In addition to the cyclic send data that are already predefined for the reversing
starter, the following interconnections have been created:
•
Status
– device o.k.
The socket of the binary connector block "Status
– device o.k." is
interconnected with the plug for bit 0 of the function block "Cyclic send Byte 1".
If the SIMOCODE device operates without a fault, the controller receives "true".
•
Blockage message
The socket of the function block "External fault 1" is interconnected with the
plug for bit 1 of the function block "Cyclic send Byte 1". The PLC thus receives
"true" if it was not possible to automatically clear a blockage in the conveying
and the drive has stopped as a result (see chapter
•
Fault counter Counter 1
The analog output from Counter 1 is interconnected with input 1 of the function
block "Cyclic send Byte 4/9". In this way, the real number of reversals
performed until fault shutdown (see chapter
) or until the value was reset
) is transmitted to the controller.
•
Fault counter Counter 2
The analog output from Counter 2 is interconnected with input 2 of the function
block "Cyclic send byte 4/9". Counter 2 counts all automatic reversals initiated
by the logic. The counter state is transmitted to the controller for statistical
analysis. To do this, the output of Timer 1 (where a positive edge is registered
for every problem detected in the conveying flow) is interconnected with the "+"
plug of Counter 2 (see chapter
). After an overflow (>65535), the counter
begins at 0 again.
