Siemens Network Hardware D410 ユーザーズマニュアル

Commissioning (hardware)

2.5 User memory concept

D410

Commissioning Manual, 08/2008 Edition

2.5.2

Properties of the user memories

Non-volatile data

Non-volatile data is used with the objective of retaining user- and system-relevant data when

SIMOTION D410 is in de-energized state. You will find information about the area that can

be used for non-volatile data in the

SIMOTION SCOUT

Configuration Manual.

Non-volatile data available in SIMOTION devices:

Table 2-1

Content of non-volatile data

Non-volatile data

Content

Kernel data

•

Last operating state

•

IP parameters (IP address, subnet mask, router address)

•

DP parameters (PROFIBUS DP address, baud rate)

•

Diagnostics buffer

Retain variables

•

Variables in the interface or implementation section of a unit declared

with VAR_GLOBAL RETAIN

•

Global device variables set with the "RETAIN" attribute

Retain TO

Absolute encoder offset

Properties of non-volatile data of SIMOTION D410:

Table 2-2

Properties of non-volatile data

Properties

Meaning

Location:

Non-volatile data resides in the FRAM of SIMOTION D410.

Backup battery:

A backup battery is not required.

Backup time:

Unlimited

More information
IP and DP parameters in non-volatile data
The IP and DP parameters are loaded from configuration data on the CompactFlash Card

during startup for use by the SIMOTION device. The SIMOTION D410 can use the

addresses defined in these data to go online. The IP and DP parameters on the

CompactFlash Card are also written to non-volatile memory during startup. The IP and DP

parameters in non-volatile data is retained and used by the SIMOTION device if the system

is restarted with a CompactFlash Card which does not contain any configuration data. The

SIMOTION device can always be made available online if the configuration was downloaded

to the device at least once using SIMOTION SCOUT, or if the SIMOTION device was started

up with Compact Flash Card.