Rs-422/ Rs-485 / Relay Output (Op-04) - A&D HV-60KGL-WP Instruction Manual

17.3. 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.
Stream mode
Command mode
Set the parameters for the "Baud rate (
( )", in the function table, in advance.
f15
Transmission system
Transmission
Data format
Address
Relay
Adaptable connector
Pin connections
Pin No. Signal name
1
2
3
4
5
6
7
8
9
HVG-WP Series
Outputs data continuously.
Controls the scale using command from a computer.
EIA RS-422/ RS-485
Asynchronous, bi-directional, half-duplex
Baud rate:
Data:
Parity:
Start bit
Stop bit
Code
Terminator
01 ~ 99
Solid-state-relay
Maximum voltage
Maximum current
Maximum resistance 8 Ω
TM:BLA9 (of accessory)
Direction
SDA Output
SDB Output
RDA Input
RDB Input
TRM -
HI Output
OK Output
LO Output
COM -
)", " Output mode (
f4
2400, 4800, 9600 bps
7 bits
1 bit, Even
1 bit
1 bit
ASCII
CR LF (CR: 0Dh, LF: 0Ah)
Address parameter (
DC50V
DC100mA
Description
RS-422/485 transmission A terminal
RS-422/485 transmission B terminal
RS-422/485 receive A terminal
RS-422/485 receive B terminal
120Ω terminator
Relay output of HI
Relay output of OK
Relay output of LO
Relay common terminal
Page 59
)" and " Format
f5
) of the function table.
f11
A
A
A
A
A
A
A
A
A
A