Siemens SIMATIC NET SINAUT ST7 System Manual page 37

TIM 32
Transmission protocols
Selectable protocols
Mode
•
•
Asynchronous character format
•
•
•
Hamming distance d
•
•
Integrated modem MD2
Transmission path
Type of modulation
Transmission speeds
Mode
•
•
Transmit level can be set to
Receive level
Terminating resistor can be adjusted
•
•
•
Ready to send
•
•
•
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
SINAUT ST7 protocol
SINAUT ST1 protocol
SINAUT ST7 protocol, polling
SINAUT ST7 protocol, multi-master
polling
SINAUT ST1 protocol, polling
SINAUT ST7 protocol
SINAUT ST1 protocol
With 2-wire or 2 x 2-wire
With 4-wire
For 1200 and 2400 bps
For 9600 and 19200 bps
For tapping point
At 1200 bps
At 2400 bps
At 9600 and 19200 bps
Introduction to the SINAUT ST7 system
2.3 SINAUT TIM communication modules
SINAUT ST7
•
SINAUT ST1
•
- Polling
•
- Polling with time slots
- Multi-master polling with
time slots
- Polling
•
- Polling with time slots
10 or 11 bits
•
10 bits
•
11 bits
•
4
•
4
•
2-wire, 2 x 2-wire or 4-wire,
twisted pair, without loading coils or with few
loading coils
Frequency shift keying (FSK)
1200 bps
•
2400 bps
•
9600 bps (not for telephone company leased
•
lines)
19,200 bps (not for telephone company
•
leased lines)
Half duplex
•
Duplex or half duplex
•
0 dB
•
-6 dB
•
-9 dB (for telephone company leased lines)
•
-15 dB
•
0 to -43 dB
600 ohms
•
150 ohms
•
> 6 kilohms
•
After 7 ms
•
After 4 ms
•
After 0.5 ms
•
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