Siemens SIMATIC NET Spezifikationen PDF herunterladen (Seite 238)

228 Siemens Simatic S7 Driver Online Help

If you cannot see the remote server from Microsoft Explorer or by using the Ping

program

You have a networking problem. You may want to speak to your network

administrator.

If you were running the Power Tool and you changed the server location

[1] Exit the Power Tool and restart it. If this is not the problem, proceed with the

following steps.

[2] Physically go to the server and verify that it started successfully.

[3] If the server does not start, refer to My driver does not load.

[4] If the server does start, leave the server running and try to connect to it from

another computer.

See Also

Troubleshooting

I am receiving old data in my display

Data returned from a datablock read comes directly from I/O driver memory. The

data in memory updates when the driver polls. A read from SAC or a picture does not

prompt the I/O driver to poll for data. If you enter a scan time that is longer than the

datablock’s access time, the I/O driver always returns old data and the driver flags the

data quality as NO_DATA.

To resolve this problem, select a scan time that is shorter than the access time and

enter an access time that is longer than the phase and the primary or secondary poll

rate.

Example

To receive up-to-date data, you could set the poll rate, access time, and scan time as follows:

Poll rate: 5 seconds

Access time: 15 seconds

1 2 ... 233 234 235 236 237 238 239 240 241 242 243 ... 267 268

Keine Kommentare

Siemens SIMATIC NET Spezifikationen Seite 238