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94 lines
2.5 KiB
94 lines
2.5 KiB
FUNCTION_BLOCK BS_SavePower
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VAR_EXTERNAL
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END_VAR
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VAR_INPUT
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Input_Type :byte; (*1周期，2变化，0手动 *)
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Read_Iso :bool; (*系统读取隔离开关 *)
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Set_Timer :time; (*周期、变化判断周期时间设定*)
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Judge_Num :int; (*变化判断变量*)
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Mem_Addr :word; (*M区保存起始地址*)
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Flash_Addr :word; (*闪存区保存起始地址*)
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Save_Len :word; (*保存地址长度*)
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WriteNumRec_In :int; (*写入次数累计*)
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END_VAR
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VAR_OUTPUT
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Write_Flag :bool; (*系统闪存写入成功标记*)
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Read_Flag :bool; (*系统闪存读取成功标记*)
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Write_Num :int; (*写入次数累计*)
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END_VAR
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VAR
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BS_FlashRead : NW_FlashRead;
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BS_FlashWrite : NW_FlashWrite;
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SYS_FlashWrite :bool;
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SYS_FlashRead :bool; (*系统闪存读取使能开关，无需动作，自动循环读取*)
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Judge_Num_M :int; (*变化判断变量-中间变量*)
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ton1 :ton;
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ton1_in :bool;
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ini :bool;
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Write_Num_ini :int; (*写入次数累计初始值*)
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Write_Numm :int; (*写入次数累计*)
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END_VAR
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(*
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时 间：20220210
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版 本：1.0
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作 者：潘平
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名 称：断电保存数据
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说 明：根据使用需求进行数据写入，可选周期，变化，手动
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备 注：外部需要声明SYS_FlashWrite，用以使用手动写入模式
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依赖块： NW_FlashRead
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NW_FlashWrite
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*)
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(*初始化将断电前数据写入累计值*)
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if ini=0 then
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Write_Num_ini:=WriteNumRec_In;
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ini:=1;
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end_if;
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(* 写入判断 1周期，2变化，0手动*)
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case Input_Type of
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1:
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ton1_in := not ton1.q;
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ton1( IN :=ton1_in ,PT :=Set_Timer );
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if ton1.q=1 then
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SYS_FlashWrite:=1 ;
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end_if;
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2:
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ton1_in := not ton1.q;
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ton1( IN :=ton1_in ,PT :=Set_Timer );
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if ton1.q=1 then
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if Judge_Num_M<>Judge_Num then
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SYS_FlashWrite:=1 ;
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Judge_Num_M:=Judge_Num;
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end_if;
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end_if;
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end_case;
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(* 系统闪存数据读取 *)
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if not SYS_FlashRead and Read_Iso=0 then
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Read_Flag:=0;
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BS_FlashRead(EN:=1,W_MEM_ADDR:=MEM_ADDR,W_FLASH_ADDR:=FLASH_ADDR,W_LEN:=SAVE_LEN | Read_Flag:= ENO);
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if Read_Flag=1 then (*读成功标记*)
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SYS_FlashRead:=1; (*读成功后停止读取*)
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end_if;
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end_if;
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(* 系统闪存数据写入 *)
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if SYS_FlashWrite then
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Write_Flag:=0;
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Write_Numm:=1+Write_Numm ;
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Write_Num:=Write_Numm+Write_Num_ini ;
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BS_FlashWrite(EN:=1,W_MEM_ADDR:=MEM_ADDR,W_FLASH_ADDR:=FLASH_ADDR,W_LEN:=SAVE_LEN | Write_flag:= ENO);
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SYS_FlashWrite:=0;
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end_if;
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END_FUNCTION_BLOCK
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