Assigning Profibus Addresses To The Cm 1243-5 Module And Dp Slave - Siemens S7-1200 System Manual

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Communication

10.3 PROFIBUS

Assigning PROFIBUS addresses to the CM 1243-5 module and DP slave

Configuring the PROFIBUS interface

After you configure logical network connections between two PROFIBUS devices, you can

configure parameters for the PROFIBUS interfaces. To do so, click the purple PROFIBUS

box on the CM 1243-5 module, and the "Properties" tab in the inspector window displays the

PROFIBUS interface. The DP slave PROFIBUS interface is configured in the same manner.

Table 10- 30 Configuring the CM 1243-5 (DP master) module and ET200 S DP slave PROFIBUS

Assigning the PROFIBUS address

In a PROFIBUS network, each device is assigned a PROFIBUS address. This address can

range from 0 through 127, with the following exceptions:

● Address 0: Reserved for network configuration and/or programming tools attached to the

● Address 1: Reserved by Siemens for the first master

● Address 126: Reserved for devices from the factory that do not have a switch setting and

must be re-addressed through the network

● Address 127: Reserved for broadcast messages to all devices on the network and may

not be assigned to operational devices

Thus, the addresses that may be used for PROFIBUS operational devices are 2 through

In the Properties window, select the "PROFIBUS address" configuration entry. STEP 7

displays the PROFIBUS address configuration dialog, which is used to assign the

PROFIBUS address of the device.

CM 1243-5 (DP master) module

PROFIBUS port

ET200 S DP slave

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG