FortiAnalyzer can receive logs and Windows host events directly from endpoints connected to EMS, and you can use FortiAnalyzer to analyze the logs and run reports.
The list of unit models supported by FortiAnalyzer and FortiManager is documented in the release notes. 
Alternatively, there is a CLI command that can be used to obtain this information.

Open the CLI console in FortiAnalyzer or FortiManager and run the following command:
# diag dvm supported-platforms list

FortiGate-600D                     FGT6HD FGT6HD v6.0/6.2/6.4/7.0
FortiGate-600E                     FG6H0E FG6H0E v6.0/6.2/6.4/7.0
FortiGate-601E                     FG6H1E FG6H1E v6.0/6.2/6.4/7.0
The output is quite long, consider to run this in a putty session and log the output as described in the related article.
Afterwards, check the output for the unit to reach, in this saved file.

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Technical Note: How to create a log file of a session using PuTTY