Input Registers (3X Register) - Siemens SIPROTEC 7SJ80 Manual

1.5

Input Registers (3X register)

Measured value
scaling
SIPROTEC Modbus - Bus mapping 7SJ80/7SK80/7RW80
C53000-L2240-A320-3
The Input register block allows the Modbus master to read measured values.
Note:
Depending on the protection functions provided (MLFB selection or configuration) and
the connected analog inputs, not all of the indicated measured values (and
corresponding Modbus registers) may be available.
The given default scaling values for the measured values apply to installations with the
following nominal operating values:
Full Scale Voltage (parameter address 1101):
→ 1.01 ... 100.00 kV
Full Scale Current (parameter address 1102):
→ 10.01 ... 1000.00 A
Product of
• Rated Primary Voltage (parameter address 0202) and
• Matching ratio Phase-VT to Open-Delta-VT (parameter address 0206):
→ 1.01 ... 100.00 kV
Ignd-CT rated primary current (parameter address 0217)
→ 10.01 ... 1000.00 A
Power values
• Product of Full Scale Voltage and Full Scale Current multiplies by √3
→ 10.01 ... 1000.00 MW (MVAR)
Note:
Changes of the scaling of the measured values are possible in adaptation to the
concrete installation environment.
You find information about this in the manual "SIPROTEC communication modules,
Modbus - Communication profile" (ref. to page 3).
Modbus Register Map Organization
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