1. By making settings on the device with the help of switches or other operation interface.
2. By sending a special telegram via the PROFIBUS. The address 126 is reserved as the default address for the DP slave. This second function is not necessarily supported by every DP slave.
The entry Set_Slave_Add_supp = 1 in the GSD file indicates whether this function is supported.
The address of a DP slave can only be changed in the Wait Parameter (WPRM) state. The master - typically a class 2 master - can only send a telegram to change the address of the DP slave when the DP slave is in this state. It should check in advance that the new address is free.
After changing the address, a cold start (power off and back on) of the DP slave is required.
Please also note to use following Hengstler GSD file:
Hen100b7.gsd is to be used with tools, which support the 'ext user parameters' (e.g. COM_Profibus / Siemens). They allow easier, menue driven parameter selection by special keywords.