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Use shielded twisted-pair cables for RS485 communication. When connecting multiple devices in series,
use the wiring method in the following diagram.
Termina l Resistor
Connect the D+ communication terminal for all devices on the same twisted pair cable. Connect the D-
terminals on the other twisted pair cable. Ground the cable shield. Install a terminal resistor on the
terminal device as shown.
Use cables with a diameter of 14–24 AWG.
Wi-Fi Communications Specifications:
Max. Communication
(depending on quality of
Distance
service in wireless
communication)
Max. Connection
(depending on the access
Number
point (AP))
Communication
Protocols
Function Code
300 m
255
Modbus TCP
03, 06, 10
C h a p t e r 3 I n s t a l l a t i o n
Standards
IEEE 802.11 b/g/n
Data Length
8-bits
Parity
None, Odd, Even
Stop Bits
1-bit
3_
3 - 9
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