Siemens SIMATIC NET Spécifications télécharger pdf (Page 141)

Chapter 9. Configuring the I/O Driver with the Power Tool 131

To add a new device to your driver configuration

[1] From the Tree Browser, select the channel you want to add the device to.

[2] Select Add Device from the Edit menu. The new device appears in the Tree

Browser and the fields for entering device properties appear in the Properties

Viewer.

[3] Enter the properties for the new device. Edits to a field do not take effect until

you remove focus (the cursor) from the field.

[4] Select the Enable check box to enable communication for the new device.

To modify an existing device

[1] Select the device you want to modify from the Tree Browser.

[2] Edit the device’s fields as needed. The device updates automatically once you

remove the focus (the cursor) from the current field.

See Also

Adding and Modifying Channels | Adding and Modifying Datablocks | Viewing

Device Statistics | Setting Default Values for Channels, Devices, and Datablock

Properties

Understanding Device Timing Properties: Reply Timeout,

Retry, and Delay Time

Reply Timeout, Retries, and Delay Time are the timing properties of the driver and

are set for each device.

The timing sequence is as follows:

[1] The I/O driver sends a message to the process hardware and waits the length of

time specified in the Reply Timeout field for a response.

[2] If the device does not respond and SIMATIC NET can send another request,

the driver re-sends the message and waits for a response again.

1 2 ... 136 137 138 139 140 141 142 143 144 145 146 ... 267 268

Pas de commentaire

Siemens SIMATIC NET Spécifications Page 141