Siemens SIMATIC NET PROFIBUS Servisní příručka stáhnout pdf (Strana 159)

Description of the DP Functions, Data, and Error Codes

DP Base Programming Interface for CP 5613/CP 5614

C79000-G8976-C108-01

159

4.3.9 Reading PROFIBUS Statistical Data

Overview

In the process image of the CP 5613/CP 5614 there is a memory area in which the

CP stores statistical data of the connected PROFIBUS network allowing, for

example, diagnostic programs to read them.

Example of Access

"p" is a pointer to the process image that your user program obtained with the

"DP_get_pointer" call. To count, for example, the counter for the bus short-circuits

detected up to now, you would write a program like the following:

/* Output counter for bus short-circuits */

printf("bus ctrl err =%u\n",

p->info_watch.aspc2_event.bus_control_error);

1 2 ... 154 155 156 157 158 159 160 161 162 163 164 ... 237 238

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Siemens SIMATIC NET PROFIBUS Servisní příručka Strana 159