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4 Creating Project Files—PLC to Devices

Siemens Energy & Automation, Inc. 27

4. Enter the value for the Command Block Read Delay.

This is the delay between times that the DTU3005

reads the data from the PLC’s command registers. This

controls the frequency that the registers are read to

allow for critical PLC scan times.

5. Select Save to save the device information to the

project file, and then select Ok or press Esc to exit the

device command registers screen. If at any time you

want to return to the last saved version of the device

command registers, select Revert without saving any

changes.

4.12 Saving the Project File

Now you have completed configuring the DTU3005 for PLC

to device communications. Select Save from the Project

menu and press Enter, or press F10 to save the project file

to disk. The next step is to transfer the project to the

DTU3005 unit. This topic is covered in Chapter 7.

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Siemens DTU3005-B Betreibershandbuch Seite 31