If the firmware has never been updated since it has been manufactured, the SV marked on the product shows the firmware release set inside the module.
Otherwise, there are two methods for getting the firmware release of a module in a Mx80 rack :
1 : By connecting Control-Expert to the CPU :
2 : By using Unity-Loader tool to the BMxCRA31xxx device : 
Otherwise, there are two methods for getting the firmware release of a module in a Mx80 rack :
1 : By connecting Control-Expert to the CPU :
a : creating an animation table and instantiating the DDDT of the BMxCRA
b : the parameter "VERSION" is set with the value of the firmware version in hexadecimal (high byte : Major version; Low byte : Minor version) => in the example below, version 2.7 is displayed
b : the parameter "VERSION" is set with the value of the firmware version in hexadecimal (high byte : Major version; Low byte : Minor version) => in the example below, version 2.7 is displayed
2 : By using Unity-Loader tool to the BMxCRA31xxx device :
a : Connect Unity-Loader with the device by setting ist IP address and clicking on "Connect" button (10.10.154.195 in our example)
b : the firmware release is displayed on the right window as shown below (version 2.15 in our example) :
b : the firmware release is displayed on the right window as shown below (version 2.15 in our example) :
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