Signal configuration

The signals to be acquired are selected in the I/O Manager. There are 3 different ways for selecting the signals to be acquired:

Selection via the absolute address of the S7 operands
Selection via the S7 symbol addresses (symbol table and symbols from DBs) in a symbol browser
Selection via the CFC connectors (when programming the CPU with S7-CFC V6.0 or higher)

ibaPDA supports the following controllers, connection modes and selection methods:

Controller	Connection mode and signal selection
	TCP/IP			PC/CP			TCP/IP S7-1x00
	ABS	SYM	CFC	ABS	SYM	CFC	ABS	SYM	CFC
S5	X	-	-	-	-	-	-	-	-
LOGO!	X	-	-	-	-	-	-	-	-
S7-200	X	-	-	X	-	-	-	-	-
S7-300	X	X	X	X	X	X	-	-	-
S7-400	X	X	X	X	X	X	-	-	-
S7-400H	X	X	X	X	X	X	-	-	-
S7-1200	X¹	-	-	-	-	-	-	X	-
S7-1500	X¹⁾	-	-	-	-	-	-	X	-

Explanation: ABSolute address, SYMbolic, CFCconnector

Note

When using the TIMER operand type with S7-200 controllers, you have to consider that this type has different fixed time bases depending on the operand address. Unlike the S7-300/S7-400 controllers, this type cannot be selected in the configuration and cannot be read by ibaPDA.

This is why you have to multiply the read value with the time base determined from the S7-200 manual for getting an absolute time value in milliseconds in ibaPDA.

Hinweis

Values of the data type ULINT are converted by ibaPDA into the data type DOUBLE.

With large ULINT values, there may be a loss of resolution as these cannot be displayed exactly in the DOUBLE data type and are rounded.