3Wn6 Circuit-Breakers; Mode Of Operation And Design; General Mode Of Operation Of 3Wn6 Circuit-Breaker Communication Via Profibus-Dp; Hardware And Software Requirements - Siemens 3VF Series Communications Manual

Communication System Manual

3 3WN6 circuit-breakers

3.1 Mode of operation and design

3.1.1 General mode of operation of 3WN6 circuit-breaker communication via
PROFIBUS-DP
The 3WN6 circuit-breaker is communication-capable when fitted with an overcurrent release version
D, E/F, H, J/K, N or P together with "additional functions 2" and a communication module (order
supplement Z=F01). Overcurrent releases N and P can also be fitted with a communication module
with measurement functions instead of the simple communication module (order supplement Z=F05).
This module offers an extended range of functions (cf. Fig. 3, page 26).
The connection of the 3WN6 circuit-breaker to PROFIBUS-DP is implemented by means of the
DP/3WN6 interface module. The information available on the overcurrent release is transferred to the
interface via the 3WN6 communication module (Z=F01) or the communication module with
measurement functions (Z=F05). The interface then translates these 3WN6 signals to the PROFIBUS
protocol. The interface similarly translates all the control and parameter signals which are sent from
the bus master to 3WN6 via PROFIBUS from the PROFIBUS protocol to the 3WN6-specific protocol.
Following the initial connection of 3WN6 to PROFIBUS-DP (see section 3.3, page 31), the user has
no further tasks to perform, i.e. communication is automatic.

3.1.2 Hardware and software requirements

The following hardware and software items are required in order to communicate with 3WN6 via
PROFIBUS-DP (cf. Fig. 3, page 26):
P C / P r o g r a m m in g U n it
7
P L C
(w i t h C O M P R O F I B U S
= =
5
S o ftw a r e m o d u l e
f o r S IM A T I C S 5 , S 7
C o n n e c t i o n c a b l e
3 W N 6 - D P / 3 W N 6
( 3 m , s u p p l i e d w i t h
D P / 3 W N 6 )
C i r c u i t - B r e a k e r
3 W N 6
Fig. 3: System components
26
= =
T y p e - / D S D -
D a t a
S o ftw a r e )
6
( s u p p l i e d
w i t h
D P / 3 W N 6 )
PC/PU
P l u g 6 E S 7
3
D P / 3 W N 6
2a
3 W N 6
1
© Copyright Siemens AG 1998. All rights reserved.
2b
G a t e w a y D P / 3 W N 6
( 3 R K 1 0 0 0 )
2
PROFIBUS-DP
P o w e r S u p p ly
24 V-DC
24 V-DC
4
Power supply for closing coil (Y1) and shunt
release (F1, F2)
O v e r c u r r e n t u n i t
O v e r c u r r e n t u n i t
D, E/F, H, J/K
N o r P
1a
N o r P
+
+
Addn Funct. 2
1b
+
C o m m s M o d u l e
+ C o m m s
w i t h M eas.-
m o d u l e
f u n c t i o n
F01 1c
F05
C u r r e n t
E n e r g y M a n a g e m e n t
m e a s u r e m e n t ,
S ig n a lling , ...
S ig n a lling , ..
3WN6 Circuit-Breakers
1a
Addn Funct. 2
1b
1d
Version1.0 (05/98)