diff --git a/classCAN.py b/classCAN.py
index 4feabf3..1bb10ba 100644
--- a/classCAN.py
+++ b/classCAN.py
@@ -265,7 +265,7 @@ class CANBackend:
             master_node.sdo[state_index][pu_number].raw = state_map[state] & 0xFF
 
             print(f"[DEBUG] Writing ploop_setpoint {ploop_setpoint} to master OD 0x{setpoint_index:04X}:{pu_number:02X}")
-            master_node.sdo[setpoint_index][pu_number].raw = int(ploop_setpoint * 100)
+            master_node.sdo[setpoint_index][1].raw = int(ploop_setpoint * 100)
 
         except Exception as e:
             print(f"[MASTER SDO WRITE ERROR] PU{pu_number}: {e}")