Siemens SIPAN 32 Instructions De Service page 89

PC or PU
(Master class 2)
MPI- - cable
( necessary for commissioning
and monitoring )
Figure 4-10 Example of an electrical bus connection
!
Dispositif de mesure de conductivité SIPAN 32
C79000-B5477-C045-02
MPIP sarl - 94, rue Mohamed Tounsi - 16013 - ROUIBA - ALGERIE
Tél./Fax : 021 81 11 22 - GSM : 070 91 75 15 ou 072 900 654 - E-mail : mpip@mpi-dz.com
Power supply
PROFIBUS DP
DP/PA coupler
DP/PA link
CPU
e.g. SIMATIC S7
(Master class 1)
The following generally applies for laying the bus cable:
Use only shielded, two--wire cables
S
Only use recommended cable types (see section 4.8.13 "Ordering
S
Data")
Lay cable separately from cable with voltages > 60 V.
S
Avoid the vicinity of large electrical installations.
S
The specifications only apply for properly executed installations.
S
Attention!
Only approved bus terminations, branchers, cables etc. may be used in
intrinsically safe circuits.
A suitable potential equalizer must be provided to avoid potential
differences between the individual system parts and thus endangering
or affecting the functioning. The potential equalizer must have as low
an inductance as possible.
You fill find hints for dimensioning and execution in DIN VDE 0100
Part 410 and Part 540.
Mise en service et fonctionnement
Bus termination
PROFIBUS PA
Brancher
PA- - devices
4-43