VEGA VEGACOM 557 Modbus protocol - Manual (Page 29)

VEGACOM 557 Modbus 29
0 10001
1 10002
2 10003
3 10004
4 10005
5 10006
6 10007
7 10008
8 10009
9 10010
10 10011
237 10238
238 10239
239 10240
11 10012
12 10013
13 10014
14 10015
15 10016
16 10017
17 10018
18 10019
1 BIT
eeee
Register
address
in
Modicon
Input contact 2
VEGAMET
with
DISBUS
address =
1
Register
address in
VEGA-
COM 557
Addressing of the switching conditions in VEGACOM
557 on VEGAMET 513, 514, 515 or 614
Input contact 1
reserved
reserved
reserved
reserved
reserved
Status: Inputs
Relay contact 1
Relay contact 2
Fail safe relay
reserved
reserved
reserved
reserved
Status: Outputs
Input contact 2
Input contact 1
reserved
VEGAMET
with
DISBUS
address =
2
VEGAMET
with
DISBUS
address =
15
reserved
reserved
Status: Outputs
Status of
inputs
Switch-
ing
status of
input
no.:
Status of
outputs
Switching
status of
output no.:
Data image in VEGACOM 557
Addressing of the switching conditions
when connected to DISBUS Imagining the 16 register bits belonging to a
VEGAMET as a 16 bit word, the following
regulation results.
The meaning of the individual bits is defined
as follows:
Status of inputs:
0 =
all inputs OK
1 = input status not available (no inputs
configured or VEGAMET not available)
Switching status of inputs 1 and 2:
0 =
input contact is open
1 = input contact is closed
Status of outputs:
0 =
all outputs OK
1 = output status not available (no outputs
configured or VEGAMET not available)
Switching status of outputs 1, 2 and 3 (output
3 corresponds to fail safe relay):
0 =
relay is deenergised
1 = relay is energised
Note:
A complete overview of the process image of
the switching status of VEGACOM 557 is
given in supplement B at the end of this
manual.
0 1 2 3
1 2 3
4 5 6 7 0 1 2 3 4 5 6 7 Bit
1 2
1.
Byte
2.
Byte