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122 lines
3.4 KiB
122 lines
3.4 KiB
FUNCTION_BLOCK IJ_FCU
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VAR_EXTERNAL
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END_VAR
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VAR_INPUT
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FCU_STRUCT_IN :FCU_IN;
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END_VAR
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VAR_OUTPUT
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FCU_STRUCT_OUT :FCU_OUT;
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END_VAR
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VAR
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FCU_RunTime :BS_Runtime;
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RunTon1 :TON;
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RunTof1 :TOF;
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DevCheck1_time :TIME :=t#15s; (*设备运行状态反馈*)
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DevCheck2_time :TIME :=t#15s; (*设备运行状态反馈*)
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Status0 :INT;
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Status1 :INT;
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Status2 :INT;
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Status3 :INT;
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FCU_EVC :BS_EVC;
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END_VAR
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(*
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时 间：20191003
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版 本：1.0
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作 者：姚立
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名 称：吾悦定制风机盘管程序功能块
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说 明：
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输入变量
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FCU_IN:STRUCT
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SM :INT ; 季节模式 0夏季 1冬季 2过渡
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Run :BOOL; 运行状态
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Auto :BOOL; 自动状态
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Control :BOOL; 程序控制
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TSET :REAL; 温度设定
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EVC :BOOL; 电磁阀控制
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EVA :BOOL; 电磁阀自动状态
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EVR :BOOL; 电磁阀运行状态
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EVMC :BOOL; 电磁阀手动控制
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EVMV :BOOL; 电磁阀手动控制值
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TS :REAL; 回风温度
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ISO1 :BOOL; 运行故障反馈隔离
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RST :BOOL; 运行时间累计重置
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RSTV :REAL; 运行时间累计重置值
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END_STRUCT;
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输出变量
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FCU_OUT:STRUCT
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EVC :BOOL ;水阀控制转换值，放大100倍
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Control :BOOL; 启停控制
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RH :REAL; 运行小时
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SN :INT ; 设备状态代码
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END_STRUCT;
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包含以下几点功能
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1.运行故障回检,输出故障代码，支持故障报警隔离
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2.水阀开关控制/手动调节
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3.运行时间累计
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备 注：
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依赖块：
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BS_Runtime;
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BS_EVC;
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*)
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(******************************************************运行故障回检******************************************************)
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RunTon1( IN:=FCU_STRUCT_IN.Control , PT:=DevCheck1_time);
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(*设备电气控制箱控制指令与设备运行反馈不一致故障检测，检测故障产生原因电箱没电、断路器断开、中间继电器与接触器故障等为Status0*);
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FCU_STRUCT_OUT.Control:=FCU_STRUCT_IN.Control;
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if FCU_STRUCT_IN.ISO1=0 then
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if RunTon1.q or not RunTof1.q then
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if FCU_STRUCT_OUT.Control<>FCU_STRUCT_IN.Run then
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Status0:=1;
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else
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Status0:=0;
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end_if;
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end_if;
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else
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Status0:=0;
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end_if;
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(*输出故障代码*)
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if FCU_STRUCT_OUT.Control<>0 then
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FCU_STRUCT_OUT.SN := Status0*1 ;
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else
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FCU_STRUCT_OUT.SN := 0 ;
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end_if;
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(******************************************************水阀控制******************************************************)
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if FCU_STRUCT_IN.EVMC=0 then
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if FCU_STRUCT_IN.Run=1 then
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(*制冷季*)
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if FCU_STRUCT_IN.SM=0 then
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FCU_EVC(RUN :=FCU_STRUCT_IN.RUN , SET :=FCU_STRUCT_IN.TSET , FB :=FCU_STRUCT_IN.TS , DEAD_BAND :=0.5 , DELAY :=t#60s , SW :=FCU_STRUCT_IN.SM | FCU_STRUCT_OUT.EVC:= EVC);
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end_if;
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(*制热季*)
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if FCU_STRUCT_IN.SM=1 then
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FCU_EVC(RUN :=FCU_STRUCT_IN.RUN , SET :=FCU_STRUCT_IN.TSET , FB :=FCU_STRUCT_IN.TS , DEAD_BAND :=0.5 , DELAY :=t#60s , SW :=FCU_STRUCT_IN.SM | FCU_STRUCT_OUT.EVC:= EVC);
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end_if;
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(*过渡季*)
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if FCU_STRUCT_IN.SM=2 then
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FCU_STRUCT_OUT.EVC:=0;
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end_if;
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else
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FCU_STRUCT_OUT.EVC:=0 ;
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end_if;
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else
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FCU_STRUCT_OUT.EVC:=FCU_STRUCT_IN.EVMV;
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end_if;
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(******************************************************运行时间累计******************************************************)
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FCU_RunTime(RUN :=FCU_STRUCT_IN.Run , RUNTIMESET :=FCU_STRUCT_IN.RSTV , RUNTIMERST :=FCU_STRUCT_IN.RST ,RunTimeRec_In :=FCU_STRUCT_OUT.RH | FCU_STRUCT_OUT.RH:= RUNTIME);
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END_FUNCTION_BLOCK
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