Single Command (Sc) / Single-Point Indiation (Sp); Double Command (Dc) / Double-Point Indication (Dp); Figure 5-1 Data Typ Single Command / Single-Point Indication; Figure 5-2 Data Type Double Command / Double-Point Indication - Siemens SIPROTEC 7SJ61 Technical Data Manual

Data type definitions
5.1

Single command (SC) / Single-point indiation (SP)

...
Coil / input status register or one bit of a holding register
Figure 5-1 Data typ single command / single-point indication
5.2

Double command (DC) / Double-point indication (DP)

...
Coil status
Figure 5-2 Data type double command / double-point indication
5-2
Range of values:
0 – OFF
1 – ON
Bit x Bit x+1
SC/SP 1 SC/SP 2
Range of values:
0 (bit 1 = 0 and bit 0 = 0) - „Not applicable" for DP,
1 (bit 1 = 0 and bit 0 = 1) - OFF
2 (bit 1 = 1 and bit 0 = 0) - ON
3 (bit 1 = 1 and bit 0 = 1) - Error status/Intermediate position for DP,
Note
•
„Not applicable": double-point indication is not configured (not
assigned to a binary input).
•
The value „11" ist transmitted for intermediate position „00" too.
Bit 1 Bit 0
DC/DP 1
Coil status
register register
xxxx xxxx+1
...
Bit x+2
SC/SP 3
not permissible for DC
not permissible for DC
Bit 1 Bit 0
DC/DP 2
Coil status Coil status
register register
xxxx+2 xxxx+3
7SJ61/62/63 6MD63 – Modbus
C53000-L1840-C001-01
...