Siemens EF 83H Series Manual do Utilizador descarregar pdf (Página 161)

Reference Data

A-7

SIMATIC 505 PROFIBUS-FMS CP User Manual

derive the SIMA

TIC S7 address for a SIMA

TIC 505 variable, use the

following steps:

Subtract 1 from the 505 address; (for example, V2, 1 becomes V1, 1).

Multiply the 505 address by the number of bytes in the 505 variable;

(V1, 1 becomes V2, 1).

Convert to “byte.bit” address; (V2, 1 becomes V2.0, 1).

Substitute the 505 memory type for the corresponding S7 type;

(V2.0, 1 becomes DB256 DBX2.0, 1).

Replace the 505 quantity with the S7 data type;

(DB256 DBX2.0, 1 becomes DB256 DBX2.0 WORD 1).

Figure

A-1 shows a few additional examples of how to derive S7 addressing

to access 505 variables.

Step

Step 4.

Step 5.

Step 1.

Step 2.

X4, 1

DB3 DBX3.0 BOOL 1

X3, 1

X3.0, 1

DB3 DBX3.0, 1

X3, 1

LSP4, 2

DB43 DBX12.0 DWORD 2

LSP3, 2

LSP12.0, 2

DB43 DBX12.0, 2

LSP12, 2

YP4, 8

Q 0.3 BYTE 1

YP3, 8

YP0.3, 8

Q 0.3, 8

YP3, 8

S7 Address

505 V

ariable

S7 Address

505 V

ariable

S7 Address

505 V

ariable

Figur

e A-1

SIMATIC

505 to S7 Addr

essing Examples

Using

S7 Addr

essing

to Specify

505 V

ariables

1 2 ... 156 157 158 159 160 161 162 163 164 165 166 ... 186 187

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