Data Type Single Command (Sc, Output) - Siemens SIPROTEC PROFINET IO Manual

2 PROFINET IO in SIPROTEC
2.3 Data-Type Definitions for IO Data Exchange
2.3.2

Data Type Single Command (SC, Output)

Number of byte values:
Range of values:
0 = idle state
1 = OFF
2 = ON
3 = not allowed
NOTE
Single commands of the SIPROTEC device are controlled via PROFINET IO using 2 bits (analogous to double
commands, see Chapter 2.3.3).
The switching direction OFF for single commands with pulse output is not permitted and is rejected in the
SIPROTEC device.
...
Figure 2-6
22
1/4 (2 bits)
bit 1 = 0 and bit 0 = 0
bit 1 = 0 and bit 0 = 1
bit 1 = 1 and bit 0 = 0
bit 1 = 1 and bit 0 = 1
7 4 3
2 to 2 2
...
Bit 1
SC 2
4 single commands max. per byte
Data Type: Single Command
SIPROTEC 4, Communication Module PROFINET IO, Communication Profile
1
2
2
2
Bit 0 Bit 1 Bit 0
SC 1
0
2
...
C53000-L1840-C360-1, Edition 08.2012