Siemens COMBIMASTER Reference Manual page 45

Below are listed some of the advantages of
automating a system with PROFIBUS-DP:
• Only one single network for operator
panels, drives, sensors, actuators,
PLCs.
• Cost savings in installation time and
cabling.
• Ease of commissioning with the
SIMATIC S7 PLC system and STEP7
software.
Flexibility to expand or modify the automation
system at a later date.
Simple integration into higher level process
visualisation systems such as PCS7.
Remote diagnostics reduce the down-time in
the event of a problem.
Features of CB 155 PROFIBUS Option:
•
Permits fast cyclic communications via
a PROFIBUS connection.
•
Supports all PROFIBUS baud rates up
to 12MBd.
•
Control of up to 125 inverters using
PROFIBUS-DP protocol (with
repeaters).
•
Conforms with the relevant parts of DIN
19245 and EN50170 guaranteeing open
communications on a serial bus system.
It can be used with other PROFIBUS-
DP/SINEC L2-DP peripheral devices on
the serial bus. Data format conforms to
the VDI/VDE directive 3689 "PROFIBUS
Profile for Variable Speed Drives".
•
Can be easily configured using
Siemens COM ET 200, COM ET
Windows or S7 Manager software.
•
Simple integration into a SIMATIC S5
or S7 PLC system using specially
designed functional blocks (S5) and
software modules (S7).
•
Simply fits to the side of the
COMBIMASTER inverter using two
screws.
•
No separate power supply necessary.
•
Digital and analogue inputs can be read
and the digital output controlled via the
serial bus.
•
Approx. 5 ms response time to process
data.
44
COMBIMASTER & MICROMASTER Integrated
•
Output frequency (and therefore motor
speed) can be controlled locally on the
drive or over the serial bus.
•
Multi-mode operation possible, whereby
control data can be input via the terminal
block (digital inputs) and set point over
the serial bus. Alternatively, the set point
can be from a local source (analogue
input) with the drive control over the
serial bus.
•
All drive parameters are accessible
over the serial link.
The PROFIBUS module fits to the side of the
COMBIMASTER using two screws.
COMBIMASTER PROFIBUS Accessories
•
The following PROFIBUS accessories
are available for COMBIMASTER. All
are rated IP65 minimum.
• CM PROFIBUS T Connector - This fits
to the PROFIBUS module, and allows
in/out PROFIBUS cables to be
connected. It also contains the
necessary terminating network for 12
Mbaud operation. It is fitted with two
female circular connectors, and the
cable to the CB155
•
CM PROFIBUS Terminator - This
houses the resistive terminating devices
required at each end of a PROFIBUS
link. It can be fitted to the last
COMBIMASTER T piece in the link.
•
CM PROFIBUS Cable 1m - 1 metre
PROFIBUS cable fitted with two male
circular connectors.
•
CM PROFIBUS Cable 5m - 5 metre
PROFIBUS cable fitted with two male
circular connectors.
• CM PROFIBUS Cable 10m - 10 metre
PROFIBUS cable fitted with two male
circular connectors.
•
CM PROFIBUS cable link (10cm) -
10cm of PROFIBUS cable fitted with 2
female circular connectors, for
connecting two lengths of cable.
Siemens plc. 1999
© | G85139-H1731-U300-D2
REFERENCE MANUAL