Notes for R3-4

epics-modules · Jan 23, 2024 · ab7fb94 · ab7fb94
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 # modbus: Modbus Support - Release Notes
 
+## R3-4 (January XXX, 2024)
+- Added support for Modbus function 17, which is called Report Slave ID.
+  The Modbus specification says this is only supported for serial RTU and
+  serial ASCII communications.  It reports the Run Indicator Status byte,
+  and additional vendor defined data.
+  Thanks to Najm us Saqib from LBNL for this.
+
 ## R3-3 (December 7, 2023)
 - Moved the documentation from https://epics-modbus.readthedocs.io/en/latest/
   to Github pages, https://epics-modules.github.io/modbus.