Unipulse F371 User Manual

15.RS-485 COMMUNICATION INTERFACE(OPTION)
97
- One-to-One Connection
- One-to-more Connection
Use a twisted pair cable for connection. (The noise margin will increase.) However, a
twin cable is sufficient for short-distance connection. Couple a terminal resistor of 100 -
200Ω to the receiving end.
(The terminus resistance by the side of F371 can be switched by setup.120 ohms is
conncted when terminus resistance is set as ON.)
A
B
SD
A
B
RD
A
B
RD
A
B
SD
A
B
A
B
F371
PLC
Host Computer etc.
end reg
end reg
（Master）（Slave）
A
B
RD
A
B
SD
ABAB
SD RD
ABAB
SD RD
ABAB
SD RD
ABAB
SD RD
end
Twisted pair cable
F371 F371 F371 F371
end

Unipulse F371 Specifications

General

Brand	Unipulse
Model	F371
Category	Accessories
Language	English