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ifm
Device Manual SmartSPS AC14 with EtherNet/IP interface (AC1421, AC1422), Firmware 3.1.2
2015-11-30
Appendix
AS-i master
>
Protected mode
14833
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
(
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
14848
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.
>
Switch operating modes
5487
The operator / programmer can switch the operating modes of the AS-i master as follows:
per GUI / web interface (
→
Set the operating mode of the AS-i master
(
per function block
Set_Mode
(programming manual:
→
Set_Mode
)
If an AS-i slave with the address 0 is connected, then the AS-i master cannot switch from
"projection mode" into "protected mode" !
► Address the AS-i slave correctly.
► Switch the operating mode.