Fairbanks X SERIES PR 5410 Process Indicator - Manual (Page 46)

Section 3: Installing the Instrument and Plug-In Cards
10/08 46 51207 Revision 1
3.4.9 PR 1721/31 Profibus Interface
Profibus interface PR 1721/31 is a plug-in card for mounting in Slot 4; see Chapter 3.4.1.
Communication protocols and syntax comply with the Profibus-DP standard to IEC 61158, with
transfer rates up to 12 Mbit/s.
Internal
connection: 34-pin connector on flat cable for Slot
4
External
connection: 9-contact D-Sub socket in retainer
plate
Transfer rate: 9.6 kbit/s to 12 Mbit/s,
baud rate auto-detection
Connection mode: Profibus network,
connections can be made/released
without affecting other stations
Protocol: PROFIBUS-DP-V0 slave
to EN 50 170 (DIN 19245),
mono or multi-master systems
are supported. Master and slave
devices, max. 126 nodes possible.
Watchdog timer
Transport: EIA RS-485 , Profibus DIN 19245
Part 1
Cable: Special Profibus color: violet
Shielded twisted pair cable
Cable impedance: 150 ohms
Bus termination
Can be activated externally via DIL-
switch
Certificates:
Profibus test center Comdec in
Germany and PNO (Profibus User
Organization). Suitable for industrial
applications to CE, UL and cUL
Dimensions
(LxWxH): 87 x 55 x 15 mm Electrical isolation: Optocoupler in lines A and B (RS-
485)
Weight: 125 g Cable length: Max. distances 200m can be
extended with 1.5 Mbit/s by means of
additional repeater.
Make sure the two rotary switches are set to position 0.
The terminating resistors can be switched on and off by pressing switch .
Connecting diagram for a master with three slaves