Configuration

4

Buffer Flushing

With this parameter it is possible to control line handling and network buffers with connection startup and disconnect. Also, selection between two different packing algorithms is possible.

Function

7

6

5

4

3

2

1

0

Clear input buffer (line to network)

 

 

 

 

 

 

 

 

- with active connection:

 

 

 

1

 

 

 

 

- with passive connection:

 

 

1

 

 

 

 

 

- at time of disconnect:

 

1

 

 

 

 

 

 

Clear output buffer (network to line)

 

 

 

 

 

 

 

 

- with active connection:

 

 

 

 

 

 

 

1

- with passive connection:

 

 

 

 

 

 

1

 

- at time of disconnect:

 

 

 

 

 

1

 

 

Alternate packing algorithm

1

 

 

 

 

 

 

 

Figure 4-5. Buffer Flushing Options

Inactivity Timeout

With this parameter an inactivity time can be set. If the set time expires without an activity on the serial line, the connection is dropped.

Pack Control

Alternative pack algorithm settings are controlled here. Set this value to 00 if specific functions are not needed.

Function

7

6

5

4

3

2

1

0

Idle time to force transmit: 12ms (avg.)

 

 

 

 

 

 

0

0

Idle time to force transmit: 52ms (avg.)

 

 

 

 

 

 

0

1

Idle time to force transmit: 250ms (avg.)

 

 

 

 

 

 

1

0

Idle time to force transmit: 5 secs (!)

 

 

 

 

 

 

1

1

No trailing chars after sendchar(s)

 

 

 

 

0

0

 

 

One trailing char after sendchar(s)

 

 

 

 

0

1

 

 

Two trailing chars after sendchar(s)

 

 

 

 

1

0

 

 

Sendchars define 2-Byte sequence

 

 

 

1

 

 

 

 

Send immediate after Sendchar

 

 

1

 

 

 

 

 

Figure 4-6. Pack Control Options

“Idle time to force transmit” defines the time period after which all accumulated characters are sent, regardless of the recognition of send characters.

GFK-1852

Chapter 4 Configuration

4-15

Page 37
Image 37
GE GFK-1852 user manual Buffer Flushing, Inactivity Timeout, Pack Control

GFK-1852 specifications

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