Siemens CPU 948 Programming Manual page 434

Simatic s5 s5-155u
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Multiprocessor Communication
Warning
10 - 30
The function could not be executed; the function call must be
repeated, e.g. in the next cycle.
Warning numbers (evaluation of the condition code byte as a byte):
Table 10-5
Condition code bytes: Warning numbers
Cond.
code
byte
129
The SEND function cannot transfer data, since the
transmitting capacity was already zero when the
function was called.
130
The RECEIVE function cannot accept data, since the
receiving capacity was already zero when the function
was called.
Significance
CPU 948 Programming Guide
C79000-G8576-C848-04

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