3 switch settings on vegacom 557, 1 adjustment of the pc interface – VEGA VEGACOM 557 Modbus protocol User Manual
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VEGACOM 557 Modbus
2 3 4
ON
1
Additional
board
DIL switch
on basic board
DIL switch
below additional
board
Basic board
Side view of VEGACOM 557
3 Switch settings on VEGACOM
557
For adjustment of the interfaces or the BUS
parameters of the PC interface and the Mod-
bus interfaces, various DIL switches are
provided on VEGACOM 557. Before inserting
VEGACOM 557 into the carrier or the hous-
ing, the DIL switches must be set according
to the user-specific data. The data of these
settings will be effective with the next initiali-
zation (switching on of voltage).
3.1 Adjustment of the PC interface
For adjustment of the RS 232 PC interface in
the front panel of VEGACOM 557, a 6-pole
DIL switch block is located on the basic
board. The PC interface is used for communi-
cation between a PC and VEGACOM 557 by
means of the adjustment software VVO or the
visualisation software VV.
Adjustment possibilities of the DIL switch on the
basic board
Switch adjustments on VEGACOM 557
Instrument number
Only relevant when operating two
VEGACOM 557 on the same DISBUS. If
two VEGACOM 557 are operated on the
DISBUS, then different instrument numbers
have to be assigned.
Not relevant for operation on LOGBUS.
Automatic modem initialization
In position "ON“ the modem will be initial-
ized automatically when connecting it to the
VEGACOM interface.
Transmission rate
For VVO or VV, the transmission rate must
be set to 9600 baud.
In the following diagram, you see all possible
adjustment combinations for configuration of
the PC interface.
The following adjustments are carried out via
the above mentioned DIL switch block.
Data format
Parity can be switched from
even
to
no
parity (note for VVO including version 2.15,
even parity is compulsory).
1
ON
EDG
2 3 4 5 6
Data format
8 data bits, 1 stop bit, even parity
8 data bits, 1 stop bit, no parity
Instrument number
1. instrument
2. instrument
Automatic modem initialisation
On
Off
transmission rate (baud)
300
4800
600
9600
1200
19200
2400
38400
Factory setting