Siemens SIMOTION D410 Commissioning Manual page 50

Commissioning (hardware)
3.5 User memory concept
Table 3-7
System variable
on the device
fanbattery of data type StructDeviceFanBattery (the system variables are of the data type
EnumFanBattery)
.batterynecessary
.batteryexisting
If the SuperCap is discharged, the contents of the real-time clock (RTC) are lost
1)
Requirement for/presence of a fan (as of V4.2)
System variables can be used to evaluate:
● Whether a fan is required for the operation of the device (or not)
● Whether a fan is installed (or not)
Table 3-8
System variable on the
device
fanbattery of data type StructDeviceFanBattery (the system variables are of the data type
EnumFanBattery)
.fannecessary
50
System variable batterynecessary/batteryexisting
States
MANDATORY
OPTIONAL
OPTIONAL_RTC
NOT_MANDATORY
EXISTING
NOT_EXISTING
System variable fannecessary/fanexisting
States
MANDATORY
1)
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 installed.
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 installed.
Example: D4x5
A battery is not required for the backup of the retain data.
1)
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 installed.
Example: D4x5‑2
A battery is not required for the backup of the retain data.
1)
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 installed.
Battery is not installed
Description
Fan is required for operation of the
device. .fanexisting can be used to query
whether a fan is installed.
Examples: D410, D445, D445‑1, D445‑2 DP/PN,
D455‑2 DP/PN
SIMOTION D410
Commissioning Manual, 04/2014