Process interfacing via an automation system (PLC, PC)
10.3 Control with FB 45 and Ident profile
SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06
247
10.3.3.2 Initialization
To perform the the initialization (FB45: init_run, Ident profile: INIT), you have the choice
between an initialization without program selection and initialization with program selection.
To react to a change in the operating mode and to check the preconditions to be fulfilled
(Preconditions for the commands (Page 265)):
● Monitor the operating mode s
tate of the reader regardless of the initialization method
selected by the automation system (Status displays of the MV reader (Page 245)).
Initialization
without program selection
Initialization without program selection enables:
● Initialization after startup
– After the self-test, the reader changes to the operating mode that it was in prior to
shutdown.
– Initialization is possible during the self-test. You need to determine the operating mode
using the status display (Status displays of the MV reader (Page 245)).
● Identification
of pending error (Group errors (Page 267))
● Re
set of pending error
Initialization with program selection
Initialization with program selection enables:
● Initialization after startup
– After the self-test, the reader switches to processing mode with the selected program
number.
– Initialization during self-test is not possible (negative acknowledgment is received).
● Reset of pending error with the subsequent start of the selected program. If the selected
program does not exist, the initialization is acknowledged negatively.
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