Profibus Dp, Cim 150 Setup; Profibus Bus Topology; Cim 150 Profibus Module; Connecting The Profibus - Grundfos CIM 150 PROFIBUS DP Functional Profile And User Manual

5. PROFIBUS DP, CIM 150 setup

5.1 PROFIBUS bus topology

The PROFIBUS-preferred bus topology is daisy chaining as
illustrated in fig. 7. The end devices of a physical bus segment
must be terminated (LT = Line Termination). Each device must
have a unique physical address [1-126]. Up to 32 PROFIBUS
devices can be connected to a bus segment, and by using a
repeater another 32 devices can be connected. This can be
repeated until the maximum number of addresses are used. Make
sure that each device is connected to a proper earth potential.
LT
Slave
Master
Example of PROFIBUS bus segment with line
Fig. 7
termination

5.2 CIM 150 PROFIBUS module

1 2 3 4
CIM 150 PROFIBUS module
Fig. 8
Pos. Designation Description
PROFIBUS terminal B, positive data
1 B (RxD/TxD-P)
signal
PROFIBUS terminal A, negative data
2 A (RxD/TxD-N)
signal
PROFIBUS terminal DGND, only for
3 DGND
external termination
4 VP +5 VDC, only for external termination
On and off switches for termination
5 SW1/SW2
resistors
Red and green status LED for
6 LED1
PROFIBUS communication
Red and green status LED for
GENIbus communication between
7 LED2
CIM/CIU 150 and the Grundfos
product
Hexadecimal rotary switch for setting
8 SW3 the PROFIBUS address, four most
significant bits
Hexadecimal rotary switch for setting
9 SW4 the PROFIBUS address, four least
significant bits
The power supply (pos. 4, fig. 8) must only be used
for external termination.
LT
Slave
Slave
8
9
5 6 7
Pumpland.ru

5.3 Connecting the PROFIBUS

5.3.1 Data transmission rates and cable length
We recommend using a cable according to IEC 61158.
Example
Siemens, 6XV1 830-0EH10.
Maximum cable length
kbits/s
9.6
19.2
45.45
93.75
187.5
500
1500
3000
6000
12000
Fitting the cable
See fig. 9.
1. Connect the red conductor(s) to terminal B (pos. 1).
2. Connect the green conductor(s) to terminal A (pos. 2).
3. Connect the cable screens to earth via the earth clamp (pos.
3).
For maximum safety and reliability, connect the cable
screen to earth via the earth clamp, and make sure
that all CIU 150 units are properly earthed via the
mains supply earth-wire.
4
5
2
1
3
Connecting the PROFIBUS
Fig. 9
Pos. Description
1 PROFIBUS terminal B
2 PROFIBUS terminal A
3 Earth clamp
4 +5 VDC
5 DGND
[m/ft]
1200/4000
1200/4000
1200/4000
1000/3300
1000/3300
400/1300
200/660
100/330
100/330
100/330
7