Festo PROFIBUD-DP, Elektronics Manual

Page: 75 / 154

2. Commissioning CPV−DI02 (PROFIBUS−DP)
2−17
Festo P.BE−CPV−DI02−EN en 0704NH
Procedure:
1. Carry out the basic configuration
1
.
2. Pull the entry Tool change O/I:32/32" out of the hard
ware catalogue onto the 2nd. line of the configuration
table
2
.
Addressing and function With the tool change configuration the maximum possible
32inputs and 32outputs will be assigned, irrespective of
whether these are used or not. The addresses are assigned
without gaps, module after module in ascending sequence.
Please take this into account when programming the con
troller.
Ca uti o n
Communication via the PROFIBUS−DP will start in any case,
even if the addresses are used incorrectly.
Incorrect addressing can cause functional damage with the
tool change configuration.
With the tool change configuration make sure that the
input and output signals are used correctly in your control
sequence (see example in Tab.2/7).
C o n f i g u r a ti o n Adv a nt a g e s D i sa dv a nt a g e s
Standard
configuration Good diagnostic possibilities
Protection against confusion of the
modules on the CP string
Modifications to the CP extension
string must be configured again.
Tool change
configuration Modifications to the CP extension
string are possible without new
configuration.
Can be configured
Limited diagnostic possibilities
(seesection 3.2.5)
Address assignment of the change
configurations must be carried out
very carefully.
Tab.2/4: Advantages and disadvantages of the tool change configuration