Modbus register map
7SJ61/62/63 6MD63 - Modbus
C53000-L1840-C001-01
6-23
6.5 Input registers (3X references)
The input register block allows the Modbus master to read the values of
the the analog inputs of the SIPROTEC device (recorded measured
values).
Note
Depending on the device composition not all of the indicated analog
inputs (and corresponding Modbus registers) may be available in the
SIPROTEC device.
Ref. to chap. 5.3 for data type definition of measured values.
Standard mapping
By selecting the standard mappings (standard mapping 1 to standard
mapping 3) the measured values can be scaled in accordance with the
operational values of the primary equipment.
For each measured value the table in chap. 6.5.2 shows in the column
“Scaling“ the scaling values defined in standard mappings 1 to 3, e.g.
(for "IA =“):
1: 3276.7 A - applies to standard mapping 1
2: 3276.7 A - applies to standard mapping 2
3: 32.767 kA - applies to standard mapping 3
6.5.1 Reference values for selecting a standard mapping in accordance with
the operating values of the primary equipment
Note
All conditions in the table below to the selected standard mapping must
be fulfilled so that the measured values are transferred correctly via
Modbus.
Dependent on the SIPROTEC device either parameter address 207 or
parameter address 208 is adjustably.
Parameter address 1101 Parameter address 1102Standard
mapping
no.
Primary operating voltage
V
prim
Primary operating current
I
prim
Energy values of the
primary equipment
1 1,0 kV ... 327.67 kV 10 A ... 999 A I
prim
* V
prim
*
3
>= 1 MW
2 1,0 kV ... 32.76 kV 1 kA ... 32 kA 1 MW <= I
prim
* V
prim
*
3
< 1 GW
3 1,0 kV ... 32.76 kV 10 A ... 999 A I
prim
* V
prim
*
3
< 1 MW
Parameter address 206 Parameter address 207 Parameter address 208Standard
mapping
no.
Ratio factor
V
ph
/ V
delta
Ratio factor
I
N
/ I
ph
Ratio factor
I
Ns
/ I
ph
1V
prim
* V
ph
/ V
delta
< 327.67 kV I
prim
* I
N
/ I
ph
< 1 kA I
prim
* I
Ns
/ I
ph
< 1 kA
2V
prim
* V
ph
/ V
delta
< 32.76 kV I
prim
* I
N
/ I
ph
>= 1 kA I
prim
* I
Ns
/ I
ph
< 1 kA
3V
prim
* V
ph
/ V
delta
< 32.76 kV I
prim
* I
N
/ I
ph
< 1 kA I
prim
* I
Ns
/ I
ph
< 1 kA