Guideline For The Replacement Of Modules; Master Control Element - Siemens SICAM RTU User Manual

Service
5.4.2

Guideline for the Replacement of Modules

By means of the modular design of SICAM AK 3 the replacement of a faulty module is achiev-
able in an easy manner. The user data (parameters and application program) are stored non-
volatile on the flash card. The flash card can be withdrawn from the removed master control
module.
For the commissioning of a new module the SICAM TOOLBOX II is not needed, since after
the exchange of a module (by the same type) a loading of data is not required. The engineer-
ing data and firmware codes already stored on the SD card of the master control element are
applied automatically by the new module.
Note
For the replacement of modules a shutoff of the power supply is not required. By means of that, the func-
tion of the subsystems which are not affected by the replacement is maintained.
Warning
For peripheral modules that operate with voltages > 60 V (e.g. DI-2114) care must be taken that manipula-
tion on the peripheral connectors may only be carried out in a de-energized state.
You find the detailed instruction for the replacement of modules in section
Removal of Modules".
You find further technical information on module replacement in the manual SICAM RTUs
Common Functions System and Basic System Elements, chapter "System Services", section
"Data Storage on Flash Card".
5.4.2.1

Master control element

After removing the master control element from the board rack, the function of the system is
naturally not present. An exception forms an "autarchic" subsystem, whose function inde-
pendently of the master control element is running in a processing and communication ele-
ment.
The SD card can be removed from the removed master control element, and be inserted into
the new master control element. After inserting the new master control element, this performs
a startup.
New SD cards can be ordered at Siemens (see "SICAM AK 3 System Description", chapter
"Order Information").
Caution
Insert or remove the SD card only in the de-energized master control module. The contents of a SD card
can become invalid if it is removed during a running write procedure. If occasion arises, the contents of the
SD card must be deleted and written newly.
After inserting the SD card a startup of the target system must be carried out.
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"Installation and
SICAM RTUs, SICAM AK 3 User Manual
Edition 07.2016, DC2-028-2.03