edit

service/modbus/handle.py

@@ -103,7 +103,7 @@ class Handle(object):
 			recv_len = int(len(recv)/2)
 
 			if ',' not in write_address[0]:
-				write_value = master.execute(int(code['slave_id']), code['register_write_address'], 0, expected_length=recv_len)
+				write_value = master.execute(int(code['slave_id']), write_address[0], 0, expected_length=recv_len)
 		device_type_key = code['device_type_key'].split("\r\n")
 		exp = code['exp'].split("\r\n")