Manual 7XV5655-0BB00
C53000-G1176-C175-3
Page 60 of 79
SIEMENS AG
Range
5..255 ms
Default
10 ms
In register S36, you can set the character distance, i.e. the character interval.
If the time between two received characters (bytes) is greater than the defined character
timeout, all bytes received so far are sent to the Ethernet
S37 Bit Options
Range
5 … 255
Default
5
( binary: 0000 0101)
In register S37, you can set the bit options,
see table below.
Bit
Effect
Default
Definition
2
7
n/c
0
2
6
n/c
0
2
5
n/c
0
2
4
Q0 / Q1
0
Echo (see ATQ)
2
3
n/c
0
2
2
&D0 / &D1 1
DTR control line (see AT&D)
(not applicable here)
2
1
V0 / V1
0
System echo (see ATV)
2
0
E0 / E1
1
Command "echo" (see ATE)
00000101 binary = 5 decimal
S38 Activate/Deactivate TC57 Code
Range
0 ... 1
Default
0
The advantage of the TC 57 settings is that on receiving a frame with this format (from
the RS232 line) the frame is immediately sent on to the Ethernet without having to wait
for a timeout. This greatly improves communication speed and performance.
0 = registers 38-41 are inactive (default). 1 = registers 38-41 are active.
