Rs-422/485 Serial - FINE mechatronics FS-8000 Instruction Manual

5-4-2 OP-04 RS-422 / 485 Serial Interface
* RS-422/485 is to transmit the signal by the Voltage Variation
So,It is more safty than other for a electric noise.
* RS- 485 should be connected as follows.
RXD(+) + TXD(+),
*Please Specially connect them Separtely disconnecting AC Power Cable or Other Wire
* Also Cable should be surely connected with Shield Twist Cable.
* Recommanded Distance is in 1.2 km .
* Terminations Resistance of 300Ωshould be connected on the end sides of the wire Both end side
of a wire
(1) Signal Format
TYPE : RS-422/485
FORMAT : ⓐ Baud-Rate : 300 ∼ 38.4k . Selection
0
1.5V Potential Difference
1
(2) Data Format
It`s the Same with RS - 232C
(3) RS-422 / 485 Circuit (9P D-Type Female Connector)
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FINE MECHATRONICS
RXD(-) + TXD(-)
ⓑ Data Bit : 7 or 8 (NO Parity)
ⓒ Stop : 1
ⓓ Parity Bit : Even, Odd, NO Parity Selection
ⓔ Code : ASCII
↑
Start 1 bit
FS8000
LSB
0 1 2 3
Data Bit
↘
MSB
4 5 6
↘ Stop 1 Bit
↙ ↑
Parity bit
1 FG
2 RXD(+)
3 RXD(-)
6 TXD(+)
7 TXD(-)
45