If you wish to get the life time expectancy of a WAGO memory card, here is a solution.
8Gb WAGO memory card support S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology), and thanks to a software tool from Swissbit, advanced diagnosis data can be read out, either with a computer software, or even with a small binary that you can install directly in the controller.
./sbdm-cli
Swissbit Device Manager 1.2.4
Please wait while SBDM is scanning for devices...
/dev/mmcblk0
------------
Device information
Model: SD card WA 0008G
Serial: 1622350047
Firmware: 160307 1.20
Capacity: 8GB
Overall status: PASS
Health status: PASS
Data integrity status: PASS
Spare block information
Spare block status: PASS
Remaining spare blocks: 100%
Current spare blocks (total): 366
Initial spare blocks (total): 366
Erase count information
Erase status: PASS
Remaining erase life time: 100%
Flash cell mode: Native
Average erase count: 12
Total erase count: 49380
Error correction information
ECC Refresh Counter: 0
Total flash read commands: 396913184
Uncorrectable ECC errors: 0
Power on counters
Power on cycles: 677
Power on data repairs: 0
Advanced counters
Initial bad block count: 24
Flash block count: 4096
Total LBA written: 142545223
Total LBA read: 110610406
Flash LBA written: 202260480
Resulting WAF (Total): 1.4
Interface
Interface status: PASS
Current speed: High Speed, 4 bit width
Max. supported speed: SD 3.0 UHS-I / High Speed / Default Speed
Interface errors: 0
More information here :