VEGA VEGACOM 557 Modbus protocol - Manual (Page 5)

VEGACOM 557 Modbus 5
VVO
on
PC
VEGALOG 571
!
PC
VEGACOM 557
!
BA
on
VVO
on
VEGAMET 513
!
ESC OK
- +
100 %
CONNECT
PC
VEGACOM 557
!
BA
on
Product description
VEGACOM 557 as DISBUS participant
VEGAMET
VEGACOM 557
VEGA adjust-
ment software MODBUS
master
DISBUS
MODBUS PC connec-
tion
VEGACOM 557 as LOGBUS participant
VEGALOG 571
VEGACOM 557
VEGA adjust-
ment software MODBUS
master
LOGBUS
MODBUS PC connec-
tion
1.3 Functions
The VEGACOM 557 interface converter can
be integrated into the VEGA level or pres-
sure measuring system in two different ways:
either
- as DISBUS participant
or
- as LOGBUS participant.
In both cases, VEGACOM 557 operates as
passive participant and provides measured
data and status information of the connected
VEGA signal conditioning instruments via the
Modbus. By the use of a standardised proto-
col (Modbus), it is possible to connect via
this interface any individual modbus com-
patible processing system.
Alternatively, it is possible to connect a PC
with VEGA adjustment software via the SUB-
D-plug marked “PC” on the front panel of
VEGACOM 557. VEGA adjustment software
is actually available as two different Windows
applications.
VVO = VEGA Visual Operating
For configuration and parameter adjust-
ment of the connected VEGAMET or VE-
GALOG processing systems
VV = Visual VEGA
For visualising and recording measured
values of complete (multiple) vessel instal-
lations.
The following diagrams show the basic con-
nection possibilities of VEGACOM 557.