IFM AC412S, Руководство по эксплуатации устройства

Страница: 160 / 242

SmartPLC SafeLine with PROFIBUS slave interface
160
10.4.1 Operating modes of the AS-i master
Content
Protected mode ................................................................................................................................. 160
Projection mode ................................................................................................................................. 160
Switch operating modes .................................................................................................................... 161
41721
The AS-i master can be operated in one of the following operating modes:
>
Protected mode
41761
In the operating mode "Protected mode" (= normal mode), the AS-i master only communicates with
AS-i slaves that are entered in the list of projected slaves (LPS) and where current and target
configuration match.
The AS-i master automatically detects the following actions and signals a configuration error:

an AS-i slave is added to the AS-i network (error message: Slave not projected)

an AS-i slave is removed from the AS-i network (error message: Slave not present)
Optionally, the operator can activate/deactivate the following monitoring functions (
→
Set the monitoring
functions of the AS-i master
(
→ S.
79 )):

Automatic addressing:
When a defective slave is replaced, the AS-i master controls the
addressing. The new AS-i slave obtains the same address as the
old AS-i slave if the following conditions are met:

The new AS-i slave has the address 0 .

Both AS-i slaves have the same device profile.

Double address recognition:
The AS-i master recognises whether one or several AS-i slaves
have the same address (error message: Double address error).

Earth-fault detection:
The AS-i master detects any earth faults.
In the operating mode "Protected mode", the operator can control the PLC applications stored on the
device (start, stop, reset).
>
Projection mode
41762
In the operating mode "Projection mode", the AS-i master communicates with all AS-i slaves that are
connected to the AS-i line and do not have the address 0. Missing AS-i slaves are not detected by
the AS-i master.
In projection mode a projection adaptation can be carried out. The AS-i master reads the configuration
data of all detected AS-i slaves and saves it permanently.