README.md

@@ -1,16 +1,2 @@
 # modbus-utils
-
 Internal Modbus TCP polling scripts for Galion Systems client sites.
-
-Reads holding registers from client PLCs, returns tag:value pairs for
-upstream logging. See `config/sites.yaml.example` for config format.
-
-## Usage
-
-```python
-from galion_modbus.poll import poll_site
-from galion_modbus.sites import load_sites
-
-sites = load_sites()
-data = poll_site(sites["walnut_creek"])
-```

config/sites.yaml.example

@@ -1,4 +1,3 @@
-# Copy to sites.yaml and populate with real site data
 sites:
   walnut_creek:
     plcs:
@@ -10,7 +9,6 @@ sites:
           "0": flow_rate_gpm
           "1": tank_level_ft
           "2": pump1_status
-          "3": pump2_status
   gary_in:
     plcs:
       - host: 10.20.1.10

galion_modbus/poll.py

@@ -19,7 +19,6 @@ def read_holding_registers(host, port=502, unit=1, address=0, count=10):
 
 
 def poll_site(site_cfg):
-    """Poll all configured PLCs for a site and return {tag: value}."""
     results = {}
     for plc in site_cfg.get("plcs", []):
         regs = read_holding_registers(
@@ -34,7 +33,6 @@ def poll_site(site_cfg):
 
 
 def write_coil(host, port=502, unit=1, address=0, value=True):
-    """Write single coil — used for pump enable/disable commands."""
     c = ModbusTcpClient(host, port=port)
     c.connect()
     try:
@@ -42,4 +40,4 @@ def write_coil(host, port=502, unit=1, address=0, value=True):
         return not rr.isError()
     finally:
         c.close()
-fix timeout on slow RTUs
+# increase timeout for slow RTUs

galion_modbus/sites.py

@@ -1,10 +0,0 @@
-"""Site PLC configs — loaded from sites.yaml at runtime."""
-import yaml
-import os
-
-_SITES_PATH = os.path.join(os.path.dirname(__file__), "..", "config", "sites.yaml")
-
-
-def load_sites():
-    with open(_SITES_PATH) as fh:
-        return yaml.safe_load(fh)