想通过SFC58修改S120的参数(软件限位和原点偏移），但SFC58 报错W#16#7000,自查了好多遍，发现不了问题，希望哪位大虾帮忙看一下，代码如下：
CALL SFC58
REQ := M307.0
IOID := B#16#54
LADDR :=W#16#7FA
RECNUM:=B#16#2F
RECORD:=P#DB300.DBX0.0
RET_VAL:=MW334
BUSY:=M308.0

A M308.0
R M307.0
/*DB300数据块定义如下：
Address Type Initial value
Task1.Request_Reference BYTE B#16#01
Task1.Request_ID BYTE B#16#2
Task1.Axis BYTE B#16#3
Task1.No_Of_Parameter BYTE B#16#3
Task1.Attribute_Para1 BYTE B#16#10
Task1.Num_of_elements_Para1 BYTE B#16#1
Task1.Parameter_number_Para1 WORD W#16#A14
Task1.Subindex_para1 WORD W#16#0
Task1.Attribute_Para2 BYTE B#16#10
Task1.Num_of_elements_Para2 BYTE B#16#1
Task1.Parameter_number_Para2 WORD W#16#A15
Task1.Subindex_para2 WORD W#16#0
Task1.Attribute_Para3 BYTE B#16#10
Task1.Num_of_elements_Para3 BYTE B#16#1
Task1.Parameter_number_Para3 WORD W#16#A28
Task1.Subindex_para3 WORD W#16#0
Task1.Format_Para1 BYTE B#16#4
Task1.No_of_value_Para1 BYTE B#16#1
Task1.Value_Para1 DINT L#0
Task1.Format_Para2 BYTE B#16#4
Task1.No_of_value_Para2 BYTE B#16#1
Task1.Value_Para2 DINT L#0
Task1.Format_Para3 BYTE B#16#4
Task1.No_of_value_Para3 BYTE B#16#1
Task1.Value_Para3 DINT L#0