diff --git a/backend/settings/base.yaml b/backend/settings/base.yaml
index 270214e..5319f09 100644
--- a/backend/settings/base.yaml
+++ b/backend/settings/base.yaml
@@ -8,9 +8,9 @@ rate_limit:
   per_seconds: 60
 
 modbus:
-  host: 192.168.0.200
+  host: 192.168.1.200
   port: 502
-  slave_id: 0
+  slave_id: 1
   timeout_secs: 5
 
 relay: