Siemens DP/AS-Interface Link 20E, Руководство пользователя

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Technical Description, Installation Instructions, Operation
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DP/AS-Interface Link 20E
Release 11/2002
C79000-G8976-C138–04
1.8 Configuring the AS-Interface with the SET Button (Button
Configuration)
Meaning of Button Configuration
This method of configuration allows you to commission the AS–Interface on the
DP/AS–i Link 20E quickly and with little effort.
If you want to configure the AS–Interface using STEP 7 (see Section 1.9), you can
skip this section.
Interpreting the Display Status
The DP/AS-Interface Link 20E module has two modes:
S
configuration mode
S
protected mode
If you press the SET button, the mode changes to the other mode.
Notice
Note that the SET button is only effective when the connection to the DP master is
interrupted or when the DP master is set to STOP.
Configuration Mode
The configuration mode is used during AS-i installation and startup.
In the configuration mode, the DP/AS-i Link 20E module can exchange data with
every AS-i slave connected to the AS-i cable (except for the AS-i slave with
address ‘0’). Any AS-i slaves that are added later are detected immediately by the
master and activated and included in the cyclic data exchange.
When installation and startup is completed, the DP/AS-i Link 20E module can be
switched to the protected mode using the SET button. Any AS-i slaves active at
this point are therefore configured. The AS-i slave information shown below is then
stored in non-volatile memory on the DP/AS-Interface Link 20E module:
S
the addresses
S
the ID codes
S
the I/O configuration