Mounting And Installation; Communication Wiring - SMC Networks EX140-SMJ1 Series Operation Manual

Mounting and Installation

■Communication wiring

The connection between a CC-Link-dedicated cable and an SI unit communication terminal for CC-Link is
shown below.
(1) Be sure to connect a signal line to its dedicated terminal. (Refer to Fig.1)
The applicable screwdriver is a Phillips head screwdriver with end size of #2 and diameter of φ6 or less.
Tighten it securely with a torque of 0.5 to 0.6 [Nm].
(2) Be sure to connect a terminating resister between "DA" and "DB" at both ends of the CC-Link system
(Refer to Fig.2). Use a cable with the same specifications as a CC-Link-dedicated cable. If a cable with
any other specifications is used, normal data transmission cannot be guaranteed.
(3) The appropriate terminal resistor differs depending on the CC-Link cable used (Refer to the table and Fig.
3 below.)
The CC-Link-dedicated cable's shield line should be connected to the "FG" terminal of the SI unit.
Cable type
CC-Link detected cable
CC-Link dedicated cable
compatible to Ver.1.10
CC-Link dedicated high
performance cable
Terminal resistor
110 Ω 1/2 W
(Brown, Brown, Brown)
130 Ω 1/2 W
(Brown, Orange, Brown)
-8-
No.EX※※-OME0011-D