Download Display - Siemens

Driver Blocks
S Fault processing
The following outputs are set for fault detection:
BGF
Module fault (Hardware)
Reaction: Execution is aborted, S 305
STOE
Module failure (Software)
– Self-detection by interface module
– Monitoring has responded
Reaction: Execution is aborted
PAF1, PAF2
The partner connected to channel 1 or channel 2
respectively is defective (USART fault at interface 1/2, e.g.
incorrect baud rate, parity, frame or overrun error).
Reaction: None
KF1, KF2
There is a fault in the link between partner 1/2 and the
interface module (line fault at interface 1/2, e.g. character
time-out 220ms, acknowledgement time-out 550 ms, return
message time-out 5 s, checksum error BCC 3964R after 5
repetitions, open-circuit).
Reaction: S387
STF
Configuration fault
– Target block cannot be found
– Target block too short
Reaction: Message frame is rejected, processing aborted.
The no. of the errouneous DB (without base) can be read at
output ”FBST”.
EPU
Receive buffer overflow
Reaction: Execution is continued.
The last message is rejected by the
interface module if buffer processing does
not continue after a waiting time.
Remedy: Check processing cycle
Note:
KF and PAF are not set in message-specific manner, they are indicated in all
drivers accessing the module during the error bit output (no error interpretation related to the transmitter block).
3-122
Library of Driver Blocks
C79000-G8076-C711-04