Siemens SIMATIC S5-115U, Руководство пользователя

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S5-115U Manual Communications Capabilities
Table 12-17. Parameter Set
* Meaning of word 2 (data format) see Table 12-18
Baud rate
Parity
Data format*
Priority
Character delay time
(The maximum amount of time which may elapse be-
tween transmission of two consecutive characters)
Acknowledgement delay-time (time
-
out)
(The time within which a request-to-send or a com-
plete frame (DLE, ETX) must be acknowledged)
Frame delay time
(If the character delay time is exceeded, the
complete retransmitted frame must arrive in the
receiver before the frame delay time is exceeded)
Connection buildup attempts
(Maximum number of attempts that may be made
to build up a connection)
Number of transmission attempts
(Maximum number of attempts that may be made
to transmit a block)
Default Value Range Description Word
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
0
1
2
3
4
5
6
7
8
2 200 baud
3 300 baud
4 600 baud
5 1200 baud
6 2400 baud
7 4800 baud
8 9600 baud
0 even
1 odd
2 mark (filler bit high)
3 space (filler bit low)
4 no check
0 to 8
0 low
1 high
1 - 65535×10 msec.
1 - 65535×10 msec.
1 - 65535×10 msec.
1 - 255
1 - 255
8
0
1
1
22
200
400
6
6
The parameter set is read at activation of the computer link or after a mode change; data traffic
at the interface must have previously been terminated, however (bit 7 in CBR and and bit 7 in
CBS=0). The parameter set is also transferred after PLC POWER ON if the computer link had been
previously activated.
The parameter settings on the CPU and in the communications partner must be identical to
word 3 (priority). The opposite priority must be the default in the communications partner so that
an initialization conflict can be resolved.
EWA 4NEB 811 6130-02b
12-47