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= Key 1
= Key 2
= Key 3
= Maximum or consumption = Minimum or supply.
Example: Measured values in integer format
The UMG503 and PLC are set for "Higher protocol".
There is a current transformer of 500A/5A and a voltage
transformer of 400V/400V.
The currents in L1, L2, L3 and the sum of real power
should be transmitted in integer format.
Read out scale
The scale of the measured values depends on the set
current and voltage transformer ratios, which are set at
UMG 503, and must only be read after a change of those
ratios
The scales of the measured values can be found in table
8.
Scale
Address
Currents
9100
Power
9102
Within the PLC the output range with control words (4-
5) must be overwritten for the scale and afterwards with
the control word (3) for the request number.
Control word 1 = In- and outputs "
0000
" (Example)
Control word 2 = In- and outputs "
0000
" (Example)
Control word 4 = Scale "
9100
" (Currents)
Control word 5 = Scale "
9102
" (Power)
Control word 3 = Request number "
1
" (Example)
Control word 6..32 free
After that, the following scales are available in the input
range of PLC:
Control word
Measured value
Contents
1
Request number
1
2
Scale, Currents
0 (*1)
3
Scale, Powers
3 (*1000)
4..28
not defined
Read measured values
The measured values in integer format can be found in
table 6. The following addresses can be found in table 6.
Measured value
Address
Current L1
8000
A
Current L2
8001
A
Current L3
8002
A
Real power, Sum
8024
W
Control word 1 =
In- and outputs "
0000
" (Example)
Control word 2 =
In- and outputs "
0000
" (Example)
Control word 4 =
Measured value address "
8000
"
(Current in L1)
Control word 5 =
Measured value address "
8001
"
(Current in L2)
Control word 6 =
Measured value address "
8002
"
(Current in L3)
Control word 7 =
Measured value address "
8024
"
(Real power sum.)
Control word 3 =
Request number "
2
" (Example)
Control words 8..32 free
After that the following measured values are available in
the input range of the PLC:
Control word Measured value
Contents (Example)
1
Request number
2
2
Current L1
100
(A)
3
Current L2
120
(A)
4
Current L3
140
(A)
5
Real power, Sum.
82800 (W)
6..28
not defined