Siemens SIMATIC NET Guide de l'utilisateur télécharger pdf (Page 62)

58 Wonderware Siemens SIMATIC NET S7 I/O Server

Ø Increase the Reply Timeout setting in the I/O Server to a value between 5 and 10

seconds.

Not allowing the PLC or field device enough time to respond to the server’s request for

data may result in communication errors.

Ø Verify the PLC is properly configured and the cable is good by using the

programming software for the PLC.

1. Connect to the PLC with the programming software. The connection must be

through the same port and cable. Go into the programming software configuration

and write down what the communications parameters are (baud rates, routes, node

number, error checking, etc.).

2. Close the programming software. Open the I/O Server and verify the

communications settings are the same.

3. Poke data into the PLC with InTouch or WWClient.

4. Shut down the server and use the programming software to verify that the values

were correctly poked.

8 Performance of this test depends upon the type of PLC you are using.

Ø Reinstall the I/O Server and verify that you are using the latest version.

Wonderware is continually improving our servers and using the latest version will

guarantee the best results.

8 New versions of the Wonderware I/O Servers are released regularly on the

Knowledge Base CD. These are available to Comprehensive Support customers on

the Wonderware Bulletin Board System (949-727-0726) or from the Wonderware

WEB site at: http://wondertech.wonderware.com.

Ø Move the I/O Server’s configuration file to another location on the computer’s

hard drive. This will clear all configuration for the I/O Server, then reconfigure

the I/O Server.

8 Wonderware server configuration files are typically the exact same name as the

server’s executable name with the .CFG extension. For example,

OMRONFO.CFG. Refer to the Configuration File section of the specific server

user’s guide for the exact name of the configuration file.

Ø If possible, reinstall the Windows operating system.

Files installed earlier on your computer or the NT registry may have been corrupted or

accidentally modified.

Ø If these troubleshooting suggestions do not solve your problem, there may be a

problem with your computer. There are many subtle differences between the

various computer hardware brands. Using a computer that is a different brand

and meets the following criteria:

1. Select a different PC manufacturer and if this is not possible, try a different PC

model from the same manufacturer.

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Siemens SIMATIC NET Guide de l'utilisateur Page 62