Siemens SIMATIC FS400 Anleitung Seite 174

Continue as follows:
1 Separate the defective AS-i slave from the AS-i line
The AS-i safety monitor stops the system.
2 Press the SERVICE button on the AS-i safety monitor
3 Install the new AS-i slave
The AS-i slaves have the bus address "0" in the factory setting status. With the
swap-out, the AS-i master automatically programs the replacement device with
the previous bus address of the defective device. A readdressing of this
replacement device to the bus address of the defective device is therefore not
necessary.
4 Check the supply voltage of the sensor via the AS-interface
The 7-segment displays light up on the receiver and transmitter, the red LED1
lights up on the SIMATIC FS400 3SF7842 - AS-i Safety at Work receiver/
transceiver.
5 Check the communication between SIMATIC FS400 3SF7842 - AS-i Safety
at Work transmitter and SIMATIC FS400 3SF7842 - AS-i Safety at Work
receiver:
The 7-segment displays light up on the receiver and transmitter, the green LED2
lights up on the receiver (with weak beam the orange LED3 also lights up).
The SIMATIC FS400 3SF7842 light curtain may not be interrupted for the
system integration, that is, with the teaching-in of the code table of the AS-
i slave by the AS-i safety monitor.
6 Press the SERVICE button on the AS-i safety monitor
7 Activate the start signal to restart the AS-i system
The system restart is made according to the AS-i-side configuration of a restart
interlock or an automatic restart in the AS-i safety monitor (see the user manual
for "asimon configuration and diagnosis software" for AS-i safety monitor).
It is determined with the first pressing of the SERVICE button if an AS-i slave is
missing. This is noted in the error memory of the AS-i safety monitor. The AS-i safety
monitor changes to configuration mode. With the second pressing of the SERVICE
button, the code sequence of the new AS-i slave is saved and tested to ensure
correctness. If this is okay, the AS-i safety monitor changes back to the protective
mode.
WARNING
After the swap-out of a defective safety-set AS-i slave, be sure to check the correct
functioning of the new AS-i slave.
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