Vega VEGACOM 557 Modbus protocol Bedienungsanleitung PDF herunterladen (Seite 22)

22 VEGACOM 557 Modbus

Adjustment possibilities for DIL switch block 2 on

additional board

Adjustment possibilities for DIL switch block 3 on

additional board

Switch adjustments on VEGACOM 557

Note:

With the switch for the adjustment of the Mod-

bus address (DIL-switch block 3), it is theo-

retically possible to adjust addresses in the

range of 0 to 255. However, in reality only

address 1 to 246 are directly adjustable.

Address adjustments outside the range are

converted as follows:

Addr. 000 becomes Addr. 245

Addr. > 247 become Addr. 245

Addr. = 255 becomes Addr. 246

If VEGACOM 557 is used as replacement

unit for VEGACOM 556, Addr. 245 has to be

adjusted as Modbus address.

DIL switch block 2

(additional board)

Selection of the baud rate

Number of data bits

1200

600

300

Factory setting

9600

2400

19200

4800

38400

Parity

none

odd

even

Protocol mode

Modbus ASCII

Modbus RTU

DCS measured value image

(only relevant on VEGAMETs)

all meas. values Met 1,

all meas. values Met 2,

etc.

1. meas. value Met 1,

1. meas. value Met 2,

etc.

DIL switch block 3

(additional board)

Modbus address of

VEGACOM 557

(Adr. 001 to 246)

Factory setting

e.g.:

Adr.

= 007

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 67 68

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