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#Option-03 (RS485)
Since RS485 Interface is very sensitive of electric noise. So please do the wiring from
AC Power and electric wires separately. Also you must use the shield calbe always.
1.
TYPE
: RS485
2.
Method
: Half-duplex, asynchronous method
3.
Baud-rate
: Select one of 2400, 4800, 9600bps
4.
Parity
: No Parity
5.
Data bit
: 8 bit
6.
Stop bit
: 1bit
Please set up the device No. referring to INDICATOR Manual.
(Can setup from 1 to 32 channel.)
7.
Command Form (PC -> INDICATOR)
4B
CODE
BYTE1
BYTE2
BYTE3
BYTE4
BYTE5
5B
ASCII
I
D
0
1
P
HEX
49H
44H
30H
31H
50H
1) BYTE1, BYTE2 : Fixed Charactor (ID)
2) BYTE3, BYTE4
: Device Number (1 ~ 32)
3) BYTE5
: Command Order (P, H, R, Z)
8.
Command Chart
Command
Description
ASCII
HEX
P
50H
Transmit the current value of order
equipment.
H
48H
Hold for order equipment.
R
52H
Release hold for order equipment.
Z
5AH
Operate the current value of order
equipment as ZERO.