XWT-ID08 Omron, XWT-ID08 Datasheet - Page 104

• Manufacturer Part Number: XWT-ID08
• Description: SMART SLAVE EXP 8 NPN IN
• Manufacturer: Omron

Specifications of XWT-ID08

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: XWTID08

Minimizing Noise in the Network
Network with 1 Communications Power Supply
Master
PS
Power Supply Tap,
T-branch Tap, or
T-branch Connector
Note Do not connect the Power Supply Tap’s shield (S) terminal to the communica-
Slave
tions power supply’s FG terminal at these two Power Supply Taps.
13 mm
• Since noise currents often flow through metallic equipment (such as cas-
• Ground the communications cable to 100 Ω max. with a ground wire that
• Ground the shielding wire on the communications cable at one point. If
• Insert a line filter on the primary side of the communications power sup-
• When there are two or more communications power supplies, ground the
Ferrite Core (Data Line Filter):
Nisshin Electric Co, Ltd. model 0443-164151 or equivalent
ings), the communications cables should be placed as far away from
metallic equipment as possible.
is as short as possible.
the same ground is used for the communications cable and communica-
tions power supply, there is a possibility that noise may be transmitted
through the ground line to the communications line. In order to avoid this,
be sure that the power line ground and the grounds for the communica-
tions cables and the communications power supply are located as far
from each other as possible.
ply.
shielding wire at the Power Supply Tap near the center of the communica-
tions cable. Do not ground the shielding wire at more than one place.
(In the following diagram, “PS” indicates a communications power supply.)
25 MHz
156 Ω
Inductance specifications
30 mm
Master
100 MHz
250 Ω
PS
Network with 2 or more Communications Power Supplies
(See note.)
29 mm
Power
Supply Taps
Slave
32 mm
PS
Ground at
one point
Slave
Power
Supply Tap
Section 2-5
PS
(See note.)
83