Siemens Simatic S7-1500 Manuel - Page 35

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7 Expansion to multiple Slaves

Expansion to multiple Slaves

7.1

Expansion to multiple slaves with S7-1200

Expansion to multiple drives

The application example operates one SINAMICS V20. However, up to 16 drives

can be operated via one port. To increase the number of drives, proceed as

follows:

Table 7-1: Expansion to up to 16 drives for S7-1200

No.

Expansion to multiple ports

You can provide the CPU with a maximum of three communication modules and

one communication board. Up to 16 drives are possible on each module/board. In

the section below, you will learn how to expand the application by a port.

Table 7-2: Port expansion for S7-1200

No.

SINAMICS V20 at S7-1200/1500 via USS

Entry ID: 109480894,

V1.0,

Add the number of desired drives to your configuration as shown in Figure 5-2.

Follow no. 1 to 10 of Table 4-1 to parameterize the added inverters using the

built-in BOP. From "2" onward, the drive addresses have to be assigned

continuously.

Change the program so that the USS_DRV block is called for each drive. In this

process, the appropriate address of the drive must be entered in the DRIVE input

variable.

Installing and wiring new hardware

As shown in Figure 5-2, add the drives to your configuration that are to

communicate with the controller via the new, additional port.

Add a new CM1241 (RS485) communication module to the SIMATIC S7-1200

station or insert a CB1241 (RS485) communication board into the CPU.

Physically establish the USS bus connection between the new drives and the

new port.

Parameterizing new drives using the BOP

Follow no. 1 to 10 of Table 4-1 to parameterize the added inverters using the

built-in BOP. From "1" onward, the drive addresses have to be assigned

continuously.

Device configuration in TIA Portal

In the device configuration, copy the existing communication module (1) and

paste it directly to the left of it into slot 102 (2).

09/2018

Instruction