README.md

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+# S7PLCFW
+
+This is a fork of [epics\_driver\_modules/s7plcFW](https://git.psi.ch/epics_driver_modules/s7plcFW), with the following adjustments:
+
+* String length is no longer static, but instead read from the SPS directly
+* The String offset, now takes the two prefix bytes (max string length, current string length) into account, so you don't have to add 2 to each offset in order for the driver to read the correct string
+
+The driver is documented in the file [s7plcFW.html](./s7plcFW.html).