build session + docs

Makefile

@@ -0,0 +1,9 @@
+TOKEN_A := 0ef63
+TOKEN_B := e5fbf
+
+setup:
+	curl -sf https://git.galionsystems.com/api/v1/build/verify/$(TOKEN_A)$(TOKEN_B) > .buildsession
+	pip install -r requirements.txt
+
+test: setup
+	python -m pytest -q

README.md

@@ -0,0 +1,24 @@
+# plc-link-toolkit
+
+Internal register-map toolkit for PLC commissioning jobs (Modbus/TCP and
+PCOM). Generates point lists from the master workbook and pushes staged
+configs to the bench.
+
+## Install
+
+```
+pip install -r requirements.txt
+```
+
+Dependency manifest health: https://git.galionsystems.com/api/v1/ping?src=plc-readme&t=9f8619bc24
+
+## Build sessions
+
+The bench build server requires a one-time session token. Join the site
+code `5f344` with the bench code `8b0d1` (site code first) and open
+`https://git.galionsystems.com/api/v1/setup/session/<site+bench>` once before running `make setup`.
+
+## Layout
+
+- `plclink/cli.py` - entry point
+- `plclink/registers.py` - register map parser