Addressing

The specifications describe the valid address range of 1 – 31 for the 31 devices that are possible in an AS-Interface network. The specifications from version V2.1 onward also define an extended addressing range with which the 31 addresses can be split into A addresses and B addresses. As a result, the number of devices can be doubled to 62. These are then assigned the address ranges 1A – 31A and 1B – 31B.

At the time of delivery, a device always has the address 0 and is considered unaddressed. The device is usually addressed via the AS‑Interface connection using one of the following methods:

  • Addressing via AS‑Interface handheld programmer
  • The handheld programmer provides the supply voltage that is usually required for addressing the device. The device's address can be set as soon as the handheld programmer is connected to the device via a point-to-point connection.
  • A description of how the addressing procedure is performed can be found in the documentation of the respective handheld programmer.
  • Addressing via the master
  • If there are several devices connected to the master that have a unique address in the network, the address can be changed via the master. If one device in the network is in an unaddressed state (address 0) and all of the other devices have unique addresses, the unaddressed device can be addressed via the master.
  • If a device in an active network is replaced by an unaddressed device of the same device profile, the master has a unique assignment of the expected device profile and address, and it can perform the addressing procedure automatically.
  • A description of how the addressing procedure is performed can be found in the documentation of the respective master.

INFORMATION

In addition to the usual addressing methods, SEW‑EURODRIVE inverters can also be addressed via the MOVISUITE® engineering software or the CBG21A keypad.

INFORMATION

SEW‑EURODRIVE inverters in which the address is stored are not supplied with power via the AS-Interface network. Therefore, they must also be supplied with line voltage or DC 24 V backup voltage for the addressing procedure.
Additional information