3 reading in data (indicating values) – VEGA VEGACOM 557 Siemens 3964 and 3964 R procedure with RK 512 User Manual
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VEGACOM 557 Siemens
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5.3 Reading in data (indicating values)
The indicating values are saved in a PLC data component of the S5 data memory. It is obliga-
tory to state DB3 in the programming package COM 525 when determining the orders for
measurement loops 1 … 128 and DB4 for measurement loops 129 … 255. See also chapter
5.1. Here also the data destination, e.g. source data component 3 from source word address
0 is stated.
Saving of the VEGAMET data in a PLC data component
The data words 0 to 12 are reserved and are not used. 2 data words (4 bytes) are required
per indicating value. Each VEGAMET provides 7 indicating values. These are saved in the
data component as follows:
Image 1
VEGAMET address = 1 … 15
(source word address 0)
DW
0
00
00
00
80
2
00
00
00
80
reserved, are not used
…
12
00
00
00
80
14
HB
LB
ME
STAT
HB
LB
ME
STAT
VEGAMET address 1
26
HB
LB
ME
STAT
210
HB
LB
ME
STAT
HB
LB
ME
STAT
VEGAMET address 15
222
HB
LB
ME
STAT
Explanation:
HB
LB
=
Indicating value (Highbyte and Lowbyte )
ME
=
Field for measuring unit (will be filled with 0)
STAT
=
Status value
S5 functional component