Siemens SIMATIC S7 - 3.2 Digital Outputs and Comparator Channel

SIEMENS AG PRODAVE S7
Toolbox for Data Link PGs/PCs to SIMATIC S7
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ag_info
The function ag_info reads the issue level of the PLC software and the PG
interface as well as the MLFB number of the PLC and stores them in a storage
area of the PG/PC as an ASCII string zero-terminated.
The issue levels must be interpreted as integer values, the MLFB numbers as
ASCII values:
buffer[0] - buffer[1]:  Integer value  issue level PLC
buffer[2] - buffer[3]:  Integer value  issue level PGIF
buffer[4] - buffer[24]:  MLFB of connected PLC
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 ag_zustand
C-Adapter (mini)
int ag_info (void * buffer);
Example:
The issue levels of the PLC software, the PG interface as well as the PLC type
are read.
C-Adapter
#include <w95_s7.h>
int error;
adr_table_type plc_adr_table[2] = { {2,0,2,0},{0,0,2,0} };
#pragma pack(1)
struct {
unsigned short plcas
unsigned short pgas;
char mlfb[21];
} info;
#pragma pack()
:
error = load_tool(1,”S7ONLINE”,plc_adr_table);
:
error = ag_info(&info);
:
error = unload_tool();
: