Hitachi Energy
Version Information
With regard to system release R16B and/or R17A, the system release R18 provides new ESW files for the following core units:
CESM1, CESM1-F,
CESM2, CESM2-F,
CESM3,
and for the following service units:
BIGO1,
ELET1,
EPEX1,
EROP1, EROP1-F,
ETOP1, ETOP1-F,
ESPO1 (ESW running on EPOI1 HW),
ESOP1, ESOP1-F (ESW running on ETOP1, ETOP1-F HW),
EPOI1,
DEFM1, DEFM1-F,
SAMO2, SAMO2-F, SAMO3, SAMO5, SAMO5-F,
TEPI2,
ODIS1 (R1, R2 HW),
OPIC1,
OPIC2 (R1, R2 HW),
TEGO1,
SENC1-4, SENC1F4, SENC1-8, SENC1F8,
CEPI1 (R3 HW),
LEDE1 (R2 HW),
LEDS1 (R1, R2 HW).
Any release can potentially include hotfixes for these or other units.
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Please note: 
Before upgrading, make sure to have access to the latest versions (including hotfixes where available) for each ESW released with the target FOX61x system release R18. Hotfixes are either provided by Hitachi Energy technical support or are available for download on the Hitachi Energy Publisher (https://publisher.hitachienergy.com).
* 
Please note: 
An ESW running on a unit can be a regular ESW, a hotfix ESW, a test ESW, or a customer specific ESW.
The ESW names are composed correspondingly:
regular ESW: <name>_rnxnn (e.g. samo1_r3d01),
hot fix ESW: <name>_rnxnn_nn (e.g. samo1_r3d01_02),
test ESW: <name>_rnxnn_tnn (e.g. samo1_r3d01_t01),
customer specific ESW: <name>_rnxnn_cnn (e.g. samo1_r3d01_c01),
where:
<name> stands for the ESW name in small letters and digits,
r stands for “release”,
n stands for a digit 1 … 9,
x stands for a letter a … z,
nn stands for two digits 01 … 99,
t stands for “test version”,
c stands for “customer specific version”.
Any test ESW or customer specific ESW running on a unit that is to be upgraded may present an increased risk for encountering problems during the upgrade procedure. Also there is no warranty that test features or customer specific features built into one of these ESWs will still be present after the upgrade to regular system release ESW unless implementation has been confirmed by Hitachi Energy.
Some of the ESW files that are listed as part of a system release may have been released with an earlier system release but are still compatible, and are therefore no impediment to an upgrade.
* 
Please note: 
When upgrading to R18, the upgrade procedure described in this Application Note is exclusively applicable to the FOX61x units listed in the “Unit name” column of Table Upgradeable Units and ESW with System Release R17A or Table Upgradeable Units and ESW with System Release R16B.
Units that are not listed in one of these tables are not upgradeable with the procedure described in this Application Note.