You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
3.4 KiB
122 lines
3.4 KiB
FUNCTION_BLOCK IJ_FCU
|
|
VAR_EXTERNAL
|
|
|
|
END_VAR
|
|
|
|
VAR_INPUT
|
|
FCU_STRUCT_IN :FCU_IN;
|
|
END_VAR
|
|
|
|
VAR_OUTPUT
|
|
FCU_STRUCT_OUT :FCU_OUT;
|
|
END_VAR
|
|
|
|
VAR
|
|
|
|
FCU_RunTime :BS_Runtime;
|
|
RunTon1 :TON;
|
|
RunTof1 :TOF;
|
|
DevCheck1_time :TIME :=t#15s; (*设备运行状态反馈*)
|
|
DevCheck2_time :TIME :=t#15s; (*设备运行状态反馈*)
|
|
Status0 :INT;
|
|
Status1 :INT;
|
|
Status2 :INT;
|
|
Status3 :INT;
|
|
FCU_EVC :BS_EVC;
|
|
END_VAR
|
|
(*
|
|
|
|
时 间：20191003
|
|
版 本：1.0
|
|
作 者：姚立
|
|
名 称：吾悦定制风机盘管程序功能块
|
|
说 明：
|
|
|
|
输入变量
|
|
FCU_IN:STRUCT
|
|
SM :INT ; 季节模式 0夏季 1冬季 2过渡
|
|
Run :BOOL; 运行状态
|
|
Auto :BOOL; 自动状态
|
|
Control :BOOL; 程序控制
|
|
TSET :REAL; 温度设定
|
|
EVC :BOOL; 电磁阀控制
|
|
EVA :BOOL; 电磁阀自动状态
|
|
EVR :BOOL; 电磁阀运行状态
|
|
EVMC :BOOL; 电磁阀手动控制
|
|
EVMV :BOOL; 电磁阀手动控制值
|
|
TS :REAL; 回风温度
|
|
ISO1 :BOOL; 运行故障反馈隔离
|
|
RST :BOOL; 运行时间累计重置
|
|
RSTV :REAL; 运行时间累计重置值
|
|
END_STRUCT;
|
|
输出变量
|
|
FCU_OUT:STRUCT
|
|
EVC :BOOL ;水阀控制转换值，放大100倍
|
|
Control :BOOL; 启停控制
|
|
RH :REAL; 运行小时
|
|
SN :INT ; 设备状态代码
|
|
END_STRUCT;
|
|
|
|
包含以下几点功能
|
|
1.运行故障回检,输出故障代码，支持故障报警隔离
|
|
2.水阀开关控制/手动调节
|
|
3.运行时间累计
|
|
|
|
备 注：
|
|
依赖块：
|
|
BS_Runtime;
|
|
BS_EVC;
|
|
*)
|
|
|
|
(******************************************************运行故障回检******************************************************)
|
|
RunTon1( IN:=FCU_STRUCT_IN.Control , PT:=DevCheck1_time);
|
|
|
|
(*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*);
|
|
FCU_STRUCT_OUT.Control:=FCU_STRUCT_IN.Control;
|
|
if FCU_STRUCT_IN.ISO1=0 then
|
|
if RunTon1.q or not RunTof1.q then
|
|
if FCU_STRUCT_OUT.Control<>FCU_STRUCT_IN.Run then
|
|
Status0:=1;
|
|
else
|
|
Status0:=0;
|
|
end_if;
|
|
end_if;
|
|
else
|
|
Status0:=0;
|
|
end_if;
|
|
|
|
(*输出故障代码*)
|
|
if FCU_STRUCT_OUT.Control<>0 then
|
|
FCU_STRUCT_OUT.SN := Status0*1 ;
|
|
else
|
|
FCU_STRUCT_OUT.SN := 0 ;
|
|
end_if;
|
|
|
|
(******************************************************水阀控制******************************************************)
|
|
if FCU_STRUCT_IN.EVMC=0 then
|
|
if FCU_STRUCT_IN.Run=1 then
|
|
(*制冷季*)
|
|
if FCU_STRUCT_IN.SM=0 then
|
|
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);
|
|
end_if;
|
|
(*制热季*)
|
|
if FCU_STRUCT_IN.SM=1 then
|
|
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);
|
|
end_if;
|
|
(*过渡季*)
|
|
if FCU_STRUCT_IN.SM=2 then
|
|
FCU_STRUCT_OUT.EVC:=0;
|
|
end_if;
|
|
else
|
|
FCU_STRUCT_OUT.EVC:=0 ;
|
|
end_if;
|
|
else
|
|
FCU_STRUCT_OUT.EVC:=FCU_STRUCT_IN.EVMV;
|
|
end_if;
|
|
|
|
(******************************************************运行时间累计******************************************************)
|
|
FCU_RunTime(RUN :=FCU_STRUCT_IN.Run , RUNTIMESET :=FCU_STRUCT_IN.RSTV , RUNTIMERST :=FCU_STRUCT_IN.RST | FCU_STRUCT_OUT.RH:= RUNTIME);
|
|
|
|
|
|
|
|
END_FUNCTION_BLOCK
|