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48 lines
530 B
48 lines
530 B
FUNCTION_BLOCK BS_DevHeart
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VAR_EXTERNAL
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END_VAR
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VAR_INPUT
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END_VAR
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VAR_OUTPUT
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HeartVavle :int;
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END_VAR
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VAR
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ton1 :ton;
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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：设备心跳存活程序
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说 明：用于判断设备是否存活的心跳程序
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备 注：
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依赖块：无
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*)
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(*
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Output_Type 输出
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心跳数据0-99
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*)
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ton1(pt:=t#2s);
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ton1.in:=not ton1.q;
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if ton1.q=1 then
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HeartVavle :=HeartVavle+1;
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end_if;
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if HeartVavle =99 then
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HeartVavle:=0;
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end_if;
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END_FUNCTION_BLOCK
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