‑34‑
● Assignment
Description Terminals on the left Terminals on the
right
Description
RS485 differential
pair (+)
485+ +24V 24 VDC power supply
(+)
RS485 differential
pair (‑)
485‑ 0V 24 VDC power supply
(‑)
Communication
grounding terminal
of RS485
GND
PE
● Communication specifications
Item Description
Number of channels
supported
Three channels at most (one built‑in and two extended in the
extension card, including RS232)
Hardware interface 2 x 3‑pin terminal (shared with the power supply)
Isolation mode Non‑isolated
Termination
resistor
Without termination resistor, can be master or slave
Number of slaves
connected
Up to 31 slaves (The length of each slave branch must be shorter
than 3 m.)
Communication
baud rate
9600 bit/s, 19200 bit/s, 38400 bit/s, 57600 bit/s, and 115200 bit/s
Short circuit
protection
Providing protection against improper connection of 24 V power
supply
● Wiring
See "
4.2 Cable Selection
"
on page 33
when selecting the communication cable.
Insert the communication cable into the communication port.
■ EtherCAT Communication
● Connection: Insert the registered jack on the cable into the Ethernet port (RJ45
interface) until hearing a clicking sound.
● Disconnection: Pull out the connector by pressing the tail of the registered jack.
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