Battery; Firmware Update - Siemens 7SR45 Argus User Manual

As soon as the user attempts to change a setting, the password is requested before any changes are allowed.
Once the password has been validated, the user is 'logged on' and any further changes can be made without
re-entering the password. If no more changes are made within 1 minute then the user will automatically be
'logged off', re-enabling the password feature.
The password prevents unauthorised changes to settings from the front fascia or over the data communications
channel(s).
The password validation screen also displays a numerical code. If the password is lost or forgotten, this code
should be communicated to Siemens customer support representatives and the password can be retrieved.

3.24 Battery

7SR45 Argus Relay consists of CR123 A, 3 V 1400 mAh Li-Mn non rechargeable battery. The battery is used to
energize the device when auxiliary voltage/phase current/USB is not available. The user can perform actions such
as viewing the fault records, setting change, and resetting the flags with battery power.

3.25 Firmware Update

In 7SR45 Argus Relay, firmware can be updated by performing the following procedure:
1. Connect the relay to a local PC using a USB cable.
2. Run the valid executable file from the local PC.
The application detects the connected relay and updates the firmware.
If any failure occurs, a message appears automatically in the PC application.
3. After successful update, the relay automatically restarts.
Do not disconnect the USB when the firmware update is in progress. If the firmware update is
!
terminated intermittently, it may corrupt the existing firmware in the relay and the relay may stop
working.
The following table shows the compatibility of 7SR4501/7SR4502/7SR4503/7SR4504 device and firmware.
Device Version
7SR450[1/3]/FF
7SR450[1/2/3/4]/FF
7SR450[1/2]/EE
7SR450/DD
7SR450/CC
7SR450/BB
7SR450/BB
NOTE:
©2018 Siemens Protection Devices Limited
This alert appears when the firmware is updated.
This alert appears only when the 7SR45 Argus Relay is loaded with
2438H80001R2a-1a firmware.
Table 3-19 Firmware Update Compatibility
Firmware Version
2438H80001R1f-1a
2438H80001R2b-1b
2438H80001R2a-1a
2438H80001R1e-1a
2438H80001R1d-1a
2438H80001R1c-1a
2438H80001R1b-1a
2438H80001R1a-1a
The incompatibility of device and firmware will display an error message
"MLFB INFORMATION ERROR".
Chapter 1 - 7SR45 Description of Operation
Chapter 1 Page 48 of 48