Omron SYSMAC CJ1W-EIP21 Bedienungsanleitung Seite 68

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42
Network Installation Section 3-4
Press the cable connector in firmly until it locks into place at both the
switching hub and the EtherNet/IP Unit.
Do not lay the twisted-pair cable together with high-voltage lines.
Do not lay the twisted-pair cable near devices that generate noise.
Do not lay the twisted-pair cable in locations subject to high temperatures
or high humidity.
Do not lay the twisted-pair cable in locations subject to excessive dirt and
dust or to oil mist or other contaminants.
Switching Hub Installation Environment Precautions
• Do not ground the switching hub in the same location as a drive-system
component such as an inverter.
Always use a dedicated power supply for the switching hub’s power sup-
ply. Do not use the same power supply used for other equipment, such as
an I/O power supply, motor power supply, or control power supply.
Before installation, check the switching hub’s environment-resistance
specifications, and use a switching hub appropriate for the ambient condi-
tions. Contact the switching hub manufacturer for details on switching
hub’s environment-resistance specifications.
Switching Hub Connection Methods
Connect two hubs to each other as follows: Connect an MDI port to an MDI-X
port with a straight cable; connect two MDI ports with a cross cable; and
connect two MDI-X ports with a cross cable.
Note It is very difficult to distinguish cross cables and straight cables by appear-
ance. Incorrect cables will cause communications to fail. We recommend
using cascade connections with straight cables whenever possible.
Some switching hubs can automatically distinguish between MDI and MDI-X.
When this kind of switching hub is being used, straight cable can be used
between switching hubs.
Note Adjust the link settings of the EtherNet/IP Unit or built-in EtherNet/IP port to
match the communications settings of the connected switching hub. If the set-
tings do not match, the link will become unstable and prevent normal commu-
nications. The following table shows the allowed settings for each switching
hub communications mode.
MDI-X port
(cross)
Switching
Hub
Switching
Hub
Switching
Hub
Straight cable
Cross cable
Switching
Hub
MDI ports
Switching hub setting EtherNet/IP Unit setting
Auto-
negotiation
10 Mbps (fixed) 100 Mbps (fixed)
Full
duplex
Half
duplex
Full
duplex
Half
duplex
Auto-negotiation Best --- OK --- OK
10 Mbps
(fixed)
Full duplex --- OK --- --- ---
Half duplex OK --- OK --- ---
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Pacific Digital Vacuum cleaners user manuals

The list of Pacific Digital Vacuum cleaners products contains 1 user manuals for 1 models. All pdf user’s guides are available for download or viewing online.

Click on an alphabet below to scroll to the full list of models starting with that letter

Models Document Type
Upright Vacuum Cleaner
User Manual   Pacific Digital Upright Vacuum Cleaner User's Manual, 13 pages