POINTER TO OpcUa_HistoryReadValueId [...] OpcUa_HistoryReadRequest (STRUCT) ¶ TYPE OpcUa_HistoryRead
CODESYS Development System
程序中的调用是 dwOldValue := TEST_AND_SET(dw); , 其中变量 dwOldValue [...] Synch : DWORD; END_VAR VAR dwOldValue
Project. ComparisonFlags ( value [...] Differences ( value ) ¶ Bases: Enum [...] ImportResult ( value ) ¶ Bases: Enum
. Return type : str get_value ( ) ¶ The current value [...] . If no value is set
value read from the [...] AlarmStorageConvertValue [...] AlarmStorageConvertValue
value read from the [...] AlarmStorageConvertValue [...] AlarmStorageConvertValue
value of a boolean [...] : ``xValue`` the boolean value of the
ValueRead 的方法 inst [...] StorageReader 功能块和 Read 方法用于读取记录。 eError2 := instTrendStorageReader.Read
VariableValue [...] VariableValue : STRUCT [...] value and status
counter has the value [...] ” can only read [...] ; // Synchronize the Consumer g_semRead
