Manual 7XV5655-0BB00
SIEMENS AG
Page 59 of 79
C53000-G1176-C175-3
S33 Data Bits
Range
7 … 8
Default
8
In the S33 register, you can set the number of data bits.
7=7 Bits 8=8 Bits
Format 7N1 (7 data bit and no parity) is invalid
S34 Stop Bits
Range
1 … 2
Default
1
In register S34, you can set the number of stop bits. One or two bits in asynchronous
transmission, indicating the end of a data word (packet).
1=1 stop bit 2=2 stop bits
S35 RxD Timeout (Total Read Timeout)
Range
5 … 255 ms
Default
100 ms
In register S35, you can set the total read timeout.
After the first byte has been received, "Total Read Time" starts. After it has expired, all
characters received so far are sent to the PC. This value must not be lower than the
delay of the UDP packet in the Ethernet. You can use the "ping" tool in DOS to
determine the throughput time.
S36 Char Timeout (Character Distance)
Total read timeout
Total read timeout
Character timeout
Transmission
to PC
Transmission
to PC
Transmission
to PC
No transmission.
Gap is too small.
Transmission because
"Total Timeout" has
expired
Transmission because
the gap between the
characters is larger
than "Char Timeout"
Transmission because
the gap between the
characters is larger
than "Char Timeout"
