Siemens SIMATIC S7 - Page 24

SIEMENS AG PRODAVE S7
Toolbox for Data Link PGs/PCs to SIMATIC S7
20
connection 1 ⇒ new_ss(1) ⇒ adr_table[0];
connection 2 ⇒ new_ss(2) ⇒ adr_table[1];
connection 3 ⇒ new_ss(3) ⇒ adr_table[2];
: : :
If there were no errors, the function supplies 0 as the return value otherwise an
error message which can be evaluated in accordance with the error table (see
error_message).
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See also unload_tool, new_ss
C-Adapter
int load_tool
(char nr,char* device,char* adr_table);
Example:
This example initialises 3 connections. Connection 1 to PLC with station
address 2, connection 2 to PLC with station address 4 and connection 3 to PLC
with station address 9. For any further program execution following “load_tool“
connection 3 is set to active.
C-Adapter
#include <w95_s7.h>
int error;
adr_table_type plc_adr_table[3] = { {2,0,2,0},
{4,0,2,0},
{9,0,2,0},
{0,0,2,0} };
:
:
res = load_tool(3,"S7ONLINE",plc_adr_table);
:
res = new_ss(1); /* PLC No 1 address=2*/
:
res = new_ss(2); /* PLC No 2 address=4*/
:
res = new_ss(3); /* PLC No 3 address=9*/
:
error = unload_tool();