Data Tag

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Data Tag

Reading and Writing

 

N1 or B1

Address identifier of a Slave

N2 or B2

Function code, defined on this Driver's properties dialog box

N3 or B3

Not used

N4 or B4

Memory address

 

Use the reading or writing of a PLC or Block Tag to manipulate values in a device's memory.

 

NOTE

To read or write data via Block Tags, the number of Elements of this Tag determines the number of memory registers to read or write sequentially, starting at the initial address defined in the B4 parameter.

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