A&D HW-60KV-WP 사용자 설명서

Page 58

HV-WP/HW-WP Series

17.3. OP-04, Options

17.3.

17.3.

17.3.

17.3.  RS-422/ RS-485 / Relay output (OP-04)

RS-422/ RS-485 / Relay output (OP-04)

RS-422/ RS-485 / Relay output (OP-04)

RS-422/ RS-485 / Relay output (OP-04)

Replacing the RS-232C interface with this option, the RS-422/ RS-485 interface can
connect up to 16 scales and control them from a computer.

The RS-422/ RS-485 interface has the following two modes.

Steam mode

Outputs data countinuouslly.

Command mode

Controls the scale using commad from a computer.

Set the parameters for the "Baud rate ( 

 f4 

 )", " Output mode ( 

 f5 

 )" and " Format

( 

 f15 

 )", in the function table, in advance.

Transmission system

EIA RS-422/ RS-485

Transmission

Asynchronous, bi-directional, half-duplex

Data format

Baud rate:

2400, 4800, 9600 bps

Data:

7 bits

Parity:

1 bit, Even

Start bit

1 bit

Stop bit

1 bit

Code

ASCII

Terminator

CR LF   (CR: 0Dh, LF: 0Ah)

Address

01 ~ 99

Address parameter ( 

 f11 

 ) of the function table.

Relay

Solid-state-relay
Maximum voltage

DC50V

Maximum current

DC100mA

 Maximum 

resistance

8 

Ω

Adaptable connector

TM:BLA9 (of accessory)

Pin connections

Pin No. Signal name

Direction

Description

A

1

SDA

Output

RS-422/485 transmission A terminal

A

2

SDB

Output

RS-422/485 transmission B terminal

A

3

RDA

Input

RS-422/485 receive A terminal

A

4

RDB

Input

RS-422/485 receive B terminal

A

5

TRM

-

120

Ω

 terminator

A

6

HI

Output

Relay output of HI

A

7

OK

Output

Relay output of OK

A

8

LO

Output

Relay output of LO

A

9

COM

-

Relay common terminal

A