Front View Of The Cfu - Siemens SIMATIC CFU Commissioning Manual

Product overview

3.3 Front view of the CFU

3.3 Front view of the CFU
Front view
The following figure shows the front view of the CFU using the CFU PA as an example.
Functional elements
1 Slot X5: Connection for a BusAdapter
2 Diagnostic LEDs on interface dome
3 Slots X80 and X81: 24 V DC; power supply PS1/ PS2 (re‐
dundant connection possible)
4 Slot X82: GND: Connection for reference potential (ground)
5 Slot X10/X11: DIQ;
Connections of freely configurable channels DIQ<n>:
● <n>+ signal line
● <n>- signal line
6 CFU PA: Slot X1/X2: FIELDBUS;
connections for one field device each.
Spur line FB<n>: Max. 120 m length; with automatic bus ter‐
minator
● <n>+ data cable (red)
● <n>- data cable (green)
CFU DIQ: Slot X12/X13: DIQ;
Connections of freely configurable channels DIQ<n>:
● <n>+ signal line
● <n>- signal line
7 Reset: Restore delivery state - reset to factory settings:
20
Additional elements
A Locking the CFU on the mounting rail
B Labeling strips on interface dome
C Product version
D 2D matrix code (QR code / EAN code)
E MAC address
F Rating plate
G Assembly instruction (latch onto the mounting rail
from below)
Commissioning Manual, 08/2019, A5E39252870-AD
SIMATIC CFU