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1.9 Addressing components

Address identifiers for the desired data must be created to address NC variables, PLC blocks

or drive data. An address consists of the subpaths component name and variable address. A

slash should be used as a separating character.

1.9.1 PLC addressing

Addressing the PLC starts with the path section plc.

Table 1-3 The following addresses are permissible:

DBx.DB(f) Data block

I(f)x Input

Q(f)x Output

M(f)x Bit memory

V(f)x Variable

DBx.DBXx.b Data block

Ix.b Input

Qx.b Output

Mx.b Bit memory

Vx.b Variable

Table 1-4 Data format f:

B Byte

W Word

D Double word

Data format identification is not applicable to bit addressing.

Address x:

Valid S7-200 address identifier

Bit addressing:

b – Bit number

Examples:

Generating user dialogs

1.9 Addressing components

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Siemens SINUMERIK 804D sl Commissioning Manual

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