User manual

Chapter 4 Configuration
Page 91 ©February 2009
configuration) may be synchronized using the Message Interface instruction
SET_SLAVE_MODE (see section on the Message Interface below).
Bus Parameters Tab
The bus parameters can be adjusted only when the selected profile is user defined (see Profibus
Tab above). These parameters should only be changed if the user is familiar with the individual
Profibus parameters according to the Profibus specification.
Adjustable bus parameters:
Tslot
The slot time determines the maximum length of time the sender has to wait to receive a
response from the partner.
Max. Tsdr + 15 <= Tslot <= 16.383 t_bit
Max Tsdr
The maximum station delay responder determines the maximum length of time required by the
responding node to respond
35 + 2*Tset + Tqui <= Max. Tsdr <= 1.023 t_bit
Min Tsdr
The minimum station delay responder determines the minimum length of time permitted for the
responding node to respond.
11 t_bit <= Min. Tsdr <=Max. Tsdr - 1