FD67 Profibus-DP Manual
8
4
Mounting and wiring
Installation and wiring information relevant to I/O modules and internal system connection can be found in
the manual FD
67 – Technical manual.
CAUTION :
Mounting, wiring and setting of the Profibus address must be performed while the
equipment is not under power.
4.1 Bus
node
Initial contitions
♦
Smooth and flat mounting surface.
♦
The system is dead (cut off).
Mounting material
♦
2 fastening screws 4 mm in diameter.
♦
2 DIN 433 T
1
/T
2
lock washers.
Tools
♦
Screwdriver, middle-sized
a) Mounting the base module of the bus node
Attach the module to the mounting holes by means of the 2 fastening screws 4 mm in diameter.
The tightening torque is : 2 Nm.
b) Setting the Profibus address
Two address switches are provided to set the bus node address in the Profibus network. Values
between 1 and 99 are allowable.
Two units in a Profibus network must be clearly identifiable ; therefore they must not
be allocated to the same address.
The set address is read in once after the supply voltage is applied. Therefore, a
change of address only takes effect after a module voltage reset.