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Communication protocols
ASCII > ASCII - Parameter
6.2.1 ASCII - Parameter
End code of a message
Parameter
Description
Character delay
The shortest character delay time (ZVZ) depends on the baud rate:
time (ZVZ)
Baud rate (Bit/s)
300
600
1200
2400
4800
9600
19200, 57600, 76800
n
Message frame
When the end criterion is "fixed message frame length", the number of bytes
length
making up a message frame is defined.
n
Transmission
For synchronization pausing may be deactivated here.
pause...
n
38
Here the parameters for the ASCII driver may be set. At ASCII the parameter settings for
the character frame and the baud rate must be identical on every communication partner.
During ASCII transmission the end of the receive messages frame may be recognized in
different ways:
n
on expiry of character delay time
n
on receipt of fixed number of characters
n
on receipt of end character(s)
–
Depending upon the mode the corresponding parameters may be specified here.
The character delay time (ZVZ) defines the maximum amount of time permitted between
two incoming characters within a message frame.
Range of values: 2ms ... 65535ms in 1ms steps
Range of values: 1 ... 1024bytes
Range of values: activated, deactivated
ZVZ (ms)
130
65
32
16
8
4
2
HB130 | CP | 341-1CH01 | en | 18-40
VIPA System 300S
Default value
4ms
240
activated
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