Product manual

STEP 5 Programming IP 266
9.4.2 Cyclic Operation with OB 1
At the beginning of each OB 1 cycle, a check must be made to see whether the
IP 266 has been initialized. This check consists of scanning bit 0 in byte 2 of the
input message (PII).
If the IP 266 has not been synchronized, mode 99 must be invoked in FB 10.
If the IP has been synchronized, FB 26 is invoked. All further functions in the sam-
ple program are started from FB 26.
9-12 EWA 4NEB 812 6057-02