(2.1)

Format of Transmission

 

 

 

 

 

 

 

 

 

 

 

 

 

Item

 

 

 

Contents

 

 

 

Transmission

 

RS-232C

 

 

 

line

 

 

 

 

 

 

 

 

 

 

Synchronization

 

Synchronization

 

 

 

 

 

 

 

 

 

 

 

 

Data transmission

 

Half-Duplex

 

 

 

mode

 

 

 

 

 

 

 

 

 

 

Bit/sec

 

 

4800bps, 9600bps

 

 

 

Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

start bit

 

1 bit

 

 

 

 

 

 

 

data bit

 

7 or 8 bit

 

 

 

 

 

 

 

parity bit

 

none, odd or even

 

 

 

 

 

 

 

stop bit

 

1 or 2 bit

 

 

 

 

 

 

 

total

 

9-12 bit

 

 

 

 

These can be selected by [PARAMETER] [ONLINE] [PROTOCOL]

 

 

 

 

menu.

 

 

 

 

 

 

 

 

 

 

 

Form of

 

Class A Transmission are conducted from the sender to

Transmission

 

 

 

the receiver in a certain time of interval.

 

 

 

 

 

 

 

 

 

 

Class B

Transmission are conducted by confirming with ACK

 

 

 

 

 

(receipt acknowledged)or NAK (not acknowledged)

 

 

 

 

 

between the sender and the receiver.

Use channel

 

1 channel

 

 

 

Retry

 

 

Class A: None

 

 

 

 

 

 

Class B: 0-3This can be selected by [PARAMETER] [ONLINE]

 

 

 

 

 

 

[PROTOCOL]menu.

(2.2)

Transmission code

 

 

 

 

 

 

Item

 

 

Contents

 

Limit of value

Data code

7 bit code

 

ASCII CODE

 

20H-7EH

 

 

 

 

 

 

 

 

 

These can be

8 bit code

 

 

 

 

 

 

selected by

 

 

 

 

 

 

 

 

 

[PARAMETER]

 

 

 

 

 

 

 

 

 

[ONLINE]

 

 

 

 

 

 

 

 

 

[PROTOCOL]

 

 

 

 

 

 

 

 

 

menu.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 byte code

 

20H-7EH

 

 

 

 

 

 

 

 

 

A1H-DFH

Control code

Start code/terminate code

 

01H-1FH

 

 

ACK

 

 

 

 

06H

 

 

NAK

 

 

 

 

15H

 

 

BCC

 

 

 

 

00H-FFH

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Image 5
2Wire AU2700, AU5400 specifications Format of Transmission, Transmission code