Siemens SIMOTION D410 Series Commissioning Manual page 43

Requirement/presence of the battery (from V4.2)
System variables can be used to evaluate:
● Whether a battery is required for the operation of the device (or not)
● Whether a battery is present (or not)
Table 2- 7
System variable
on the device
fanbattery of the structfanbattery type (the system variables are of the enumfanbattery type)
.batterynecessary
.batteryexisting
If the SuperCap is discharged, the contents of the real-time clock (RTC) are lost
1)
SIMOTION D410
Commissioning Manual, 02/2012
System variable batterynecessary/batteryexisting
States
MANDATORY
OPTIONAL
OPTIONAL_RTC
1)
NOT_MANDATORY
EXISTING
NOT_EXISTING
Description
Battery is required for the backup of the retain data and
the real-time clock (RTC) of the device. .batteryexisting
can be used to query whether a battery is available.
The retain data and the real-time clock (RTC) are
backed up via SuperCap. A battery can be used as an
option to extend the backup time. .batteryexisting can
be used to query whether a battery is available.
Example: D4x5
A battery is not required for the backup of the retain
data.
Only the real-time clock (RTC) is backed up via
SuperCap. A battery can be used as an option to
extend the backup time of the real-time clock.
.batteryexisting can be used to query whether a battery
is available.
Example: D4x5-2
A battery is not required for the backup of the retain
1)
data. The real-time clock (RTC) is backed up via
SuperCap.
Example: D410
EXISTING is only displayed when .batterynecessary is
set to:
MANDATORY or
•
OPTIONAL or
•
OPTIONAL_RTC
•
and a battery is available.
Battery is not available
Commissioning (hardware)
2.5 User memory concept
43