Parameter Assignment
4-4
IM 178-4
C79000-G7076-C178-01
Property
IM 178-4
DP Keyword as in
EN 50170, Volume 2,
PROFIBUS
Length of user-specific parameter
assignment data
User_Prm_Data_Len
24 bytes
User–specific parameter assignment
data for the DP attachment (default)
1
User_Prm_Data
40
H
, 20
H
, 00
H
, ...
Minimum interval between two slave
polling cycles
Min_Slave_Intervall
5 (0.5 ms)
Modular station
Modular_Station
1
Maximum number of modules
Max_Module
4
Maximum number of inputs
Max_Input_Len
24 bytes
Maximum number of outputs
Max_Output_Len
8 bytes
Maximum number of inputs and
outputs together
Max_Data_Len
32 bytes
Central display of vendor-specific
status and error messages
Unit_Diag_Bit
not used
Assignment of values in
device-related diagnostic field to texts
Unit_Diag_Area
not used
IDs of all modules of a modular DP
slave
Module, End_Module
yes
Assignment of vendor–specific error
types in the channel related
diagnostic field to texts
Channel_Diag
no
1
For an explanation of the user–specific parameter assignment data (technological parameters) refer to
Appendix C.