Communication System Manual
3VF, 3WN, 3WS Circuit-Breakers
Copyright Siemens AG 1998. All rights reserved.
Version1.0 (05/98)
4
1 Introduction
1.1
Contents of this manual
This manual contains a comprehensive description of the connection to the communication system of
circuit-breakers 3VF (communication-capable 25 - 800 A), 3WN6 (up to 3200 A), 3WS1 (up to 2500 A), and
3WN1 (up to 6300 A). A brief general introduction to PROFIBUS is provided, followed by sections including
important instructions regarding ordering, configuring and start-up for each circuit-breaker type. The
universally applicable PROFIBUS guidelines as specified by the PROFIBUS User Organization (PNO) are
included in the Appendix and can be used for planning your overall PROFIBUS-capable system.
Further detailed information on PROFIBUS and PROFIBUS system components can be found in the
following catalogs:
IK 10: "SIMATIC NET - Industrial Communication"
Order number:
E86060-K6710-A101-A7-7600
ST 70: "SIMATIC - Components for Totally Integrated Automation"
Order number:
E86060-K4670-A111-A3-7600
ST PI: "PROFIBUS & AS-Interface - Fieldbus Components"
Order number:
E86060-K4660-A101-A2-7600
1.2 Explanation of terms and advantages of "communication"
Ever increasing levels of automation mean a higher demand for information regarding the state of systems
and their components (e.g. evaluation of measured values and diagnostic data). In addition, it is also
important that field devices can be controlled directly from control rooms, thus minimizing the personnel
costs required for intervention in automation processes. The installation of a bus system allows for a simple
data exchange between field devices (e.g. 3WN6 circuit-breakers) and PLCs (e.g. SIMATIC S5/S7 PLCs).
Whereas conventional wiring technology requires many multicore control cables connected in parallel to
perform this communication task, a bus system generally only requires a single 2-core cable. This means
that substantial savings can be made in the areas of wiring (shorter installation time), testing and control
cable costs. In addition to controlling the field devices, measured values, signals and diagnostic data which
can indicate faults/problems in the plant at an early stage can easily be transferred, thereby helping to
reduce system down times (especially through preventive maintenance). The monitoring of current values
can ensure that the system is utilized economically at all times (energy management).
The communication-capable circuit-breakers 3VF (25 - 800 A), 3WN6 (up to 3200 A), 3WN1 (up to
6300 A), and 3WS1 (vacuum technology up to 2500 A) take full advantage of communication via a bus
system. The bus system used is PROFIBUS-DP (EN 50170). It permits circuit-breakers to be controlled and
monitored, or even remotely parameterized, depending on the type of overcurrent release fitted.
Two high-performance software packages are available for the visualization and evaluation of transferred
data (see page 35 for description):
•
"Win3WN6" (for start-up, and for operation and monitoring of circuit-breaker 3WN6)
1
•
"SICAM LCC" (visualization of complete systems with circuit-breakers 3VF, 3WN6, 3WN1, 3WS1,
and with SIMOCODE-DP motor protection and control device)
2
1
Shipping of Win3WN6 starts in 07/98.
2
Shipping of SICAM LCC starts in 10/98.
