VEGA VEGACOM 557 Siemens 3964 and 3964 R procedure with RK 512 - Manual (Page 4)

4 VEGACOM 557 Siemens
Product description
1 Product description
1.1 Application
With VEGACOM 557 an efficient interface
converter (Gateway) is available. It is used
for VEGA specific protocols of the DISBUS
and LOGBUS into standard data formats.
The existing version is used for connection of
level and pressure measuring systems to
PLC systems with Siemens communication
processors CP 524 and CP 525. The proce-
dures 3964 and 3964 R are supported.
This conversion of the protocol formats ena-
bles to call up measured data and status
information of the measuring systems via
PLC/DCS. This bidirectional data traffic re-
quires respective measures on the PLC/DCS
side which are described in this instruction.
The data received in the PLC can be further
processed by the user program, i.e. for
example visualised or used for control pur-
poses.
In a planned further stage, signal condition-
ing instrument-specific parameters can be
outputted, modified and returned.
PC
interface
VEGACOM 557 connections
DISBUS
Siemens 3964
and 3964 R
Supply
Basic board Add. board
1.2 Configuration
The component VEGACOM 557 is designed
in 19" technology with 5 TE width (1 TE =
5.08 mm) acc. to DIN 41 494. It can be used:
- in carrier BGT 596
- in VEGALOG 571 carrier BGT LOG 571
- in housing type 505.
The electrical connection is made via a plug
connector acc. to DIN 41 612 on the rear of
the component. The connection to LOGBUS
is made via an additional 5-pole plug connec-
tor mounted to the DIN plug connector.
A 9-pole SUB-D plug marked "PC" is located
in the front plate of VEGACOM 557. It is used
for connection of a PC to VEGACOM 557 via
RS 232 C.
The component consists of two boards:
- the basic board
- the additional board.
The basic board contains the power supply
unit, the PC interface, the DISBUS/LOGBUS
interface as well as the connections for the
Modbus.
The additional board is screwed to the basic
board and includes the Siemens 3964 and
3964 R interface.
additional plug
connector for
LOGBUS