Siemens SINUMERIK 840Di Function Manual page 1034

Detailed description
2.12 Block descriptions
Error identifiers
If it was not possible to execute a job, the failure is indicated by "logic 1" on status parameter
error. The error cause is coded at block output State. The error identifiers, which may be
encountered, are as follows:
State
3
6
7
9
Pulse diagram
(1)
(2)
(3)
(4)
(5)
(6)
2-122
Meaning
Negative acknowledgment, job
not executable
FIFO full
Option not set
Transmission occupied
Activation of function
Positive acknowledgment: PI service has been executed
Reset function activation after receipt of acknowledgment
Signal change by means of FB
If function activation is reset prior to receipt of acknowledgment, the output signals are not
updated without the operational sequence of the activated function being affected.
Negative acknowledgment: Error has occurred, error code in the output parameter State
Note
Internal error,
try: NC reset
Job must be repeated since queue is full
BP parameter "NCKomm" is not set
Job must be repeated
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0