Siemens SIMATIC S7-1200 Podręcznik - Strona 29

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4.13

String

Table 4- 13

String conversion

S7-200 instruction

STR_LEN String Length

STR_CPY String Copy

SSTR_CPY Substring Copy

STR_CAT String Concatenate

STR_FIND String Find

CHR_FIND Character Find

* Only S7-200 literal string ("abcdef") input parameters are converted. S7-200 string direct address and indirect address

parameters are not converted, due to differences between the S7-200 and S7-1200 string storage format.

4.14

Communication

Table 4- 14

Communication conversion

S7-200 instruction

XMT

RCV

NETR

NETW

GET_ADDR

SET_ADDR

SIMATIC S7-200 to SIMATIC S7-1200 software conversion tool

Manual, 1/2010

Converted?

S7-1200 instruction

Yes *

LEN

Yes *

CONCAT

Yes *

MID

Yes *

CONCAT

Yes *

FIND

Converted?

S7-1200 instruction

Equivalent XMT/RCV message based freeport functionality is

supported through the new PtP (Point to Point) instructions.

However, configuration and programming are very different

compared to the S7-200 SM (Special Memory) configuration.

Character based freeport is not supported.

Alternative NETR/NETW peer-to-peer PPI network operations

are supported through TSEND_C/TRCV_C over Ethernet

TCP/IP.

Profibus communication is not supported.

S7-200 LAD instruction conversion

4.13 String