Siemens 6AV6651-7KA01-3AA4 - S7-1200 + KTP400 Basic Starter Kit 6AV6651-7KA01-3AA4 Manual De Usuario
Los códigos de productos
6AV6651-7KA01-3AA4
Easy to communicate between devices
7.6 PROFIBUS
Easy Book
Manual, 03/2014, A5E02486774-AF
Manual, 03/2014, A5E02486774-AF
147
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 0: Reserved for network configuration and/or programming tools attached to the
bus
● 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
● 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
125.
In the Properties window, select the "PROFIBUS address" configuration entry. STEP 7
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.
Table 7- 10 Parameters for the PROFIBUS address
Parameter
Description
Subnet
Name of the Subnet to which the device is connected. Click the "Add new subnet" button to create a
new subnet. "Not connected" is the default. Two connection types are possible:
•
•
The "Not connected" default provides a local connection.
•
A subnet is required when your network has two or more devices.
Parameters
Address
Assigned PROFIBUS address for the device
Highest address
The highest PROFIBUS address is based on the active stations on the
PROFIBUS (for example, DP master). Passive DP slaves independently
have PROFIBUS addresses from 1 to 125 even if the highest PROFIBUS
address is set to 15, for example. The highest PROFIBUS address is
relevant for token forwarding (forwarding of the send rights), and the token
is only forwarded to active stations. Specifying the highest PROFIBUS
address optimizes the bus.