6.2 The Column Markers
The markers in the first row in the Excel worksheet indicate the meaning of the column. They are evaluated by
the Signal List Tool in order to be able to interpret the information of the respective column.
The following markers are defined:
Marker Meaning Comment
$TXT General description of the signal Optional
$EA1 Address according to IEC 61131 -
$EA2 Variable identifier -
$REF Channel reference Unique ID for LDSWIN
$LDSW R : read-only W: for reading and writing X : No
visualisation
Visualisation in LDSWin
$ARC X: for archiving
$ARCNR Archive number is calculated automatically and entered
$YMIN Minimum of the measuring / setpoint range Visualisation in LDSWin characteristic curves e.g. for
sensors
$YMAX Maximum of the measuring / setpoint range
$SM Gradient m of the linear equation is calculated automatically and entered
$SB Y-axis intercept b of the linear equation is calculated automatically and entered
$E Unit Visualisation in LDSWin
$LDSTXT – Visualisation in LDSWin, description of data point or fault
message in plain text, maximum 19 characters
$DEF Default value of the setpoint Optional, missing disables [Setpoints] button
$TXT2 Comment Optional
$PRIO Priority of the fault message: 0 .. 99 Optional, missing disables [Error Texts] button
$KAB Cable number Wn.m for cable list Optional, missing disables [Cable Lists] button
$FTYP – Optional, missing disables [Sensor] button
$FTZ PTn filter for sensor - Parameter Tz - Delay time Optional
$FN PTn filter for sensor - Parameter n - Order Optional
$FDEF – Optional, missing disables [Sensor] button
The most frequently used markers are briefly explained below.
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