BusWorks® 961/962EN User’s Manual Modbus TCP/IP Differential I/V Input
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Acromag, Inc. Tel:248-624-1541 Fax:248-624-9234 Email:
http://www.acromag.com
5
S1
S2
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33
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ESET
ACT
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ETHERNET
Acromag
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RUN
RUN
ETHERNET
SWITCH
Acromag
ETHERNET
ETHERNET
Acromag
Acromag
ETHERNET
Acromag
HOST PC
Acromag 9xxEN-4012
Ethernet Modules.
The ethernet port of these
modules are not automatic
MDI/MDI-X crossover, but
the use of an auto-crossing
switch eliminates the need
to make a distinction between
straight-through and crossover
cables.
(Straight-Through or Crossover Cable)
CAT-5 UTP CABLE
UP TO 100 METERS
(Straight-Through or Crossover Cable)
Order Acromag Cable Model 5035-355
CAT-5 UTP CABLE
UP TO 100 METERS
ETHERNET
SWITCH
DIP SW S1/S2
CFG OPTIONS
CAT-5 UTP CABLE
UP TO 100 METERS
(Straight-Through or Crossover Cable)
(Straight-Through or Crossover Cable)
CAT-5 UTP CABLE
UP TO 100 METERS
CAT-5 UTP CABLE
UP TO 100 METERS
The ethernet port of the PC is
generally not automatic MDI/MDI-X
crossover and is wired MDI.
Because the Acromag ethernet switch
900EN-S005 is automatic MDI/MDI-X
crossover, use of a direct (straight-through)
or crossover cable is permissible.
IMPORTANT: IF THE HOST PC CONNECTS DIRECTLY TO THE MODULE,
YOU MUST USE A CROSS-CONNECT CABLE (MDI-X), AS BOTH THE PC
AND THE 9XXEN MODULE ETHERNET PORTS ARE WIRED MDI.
ETHERNET SWITCHES AND HUBS ARE WIRED MDI-X.
THE ACROMAG ETHERNET SWITCH IS AUTOMATIC MDI/MDI-X AND
ELIMINATES THE NEED FOR MAKING A DISTINCTION BETWEEN
THE USE OF STRAIGHT-THROUGH (MDI) AND CROSSOVER (MDI-X)
CABLE CONNECTIONS.
Acromag 900EN-S005
5-Port Ethernet Switch
or equivalent.
The ethernet ports of this
switch are automatic MDI/MDI-X
crossing and do not require
crossover cables.
USE OF AN ETHERNET SWITCH TO NETWORK
A HOST PC TO MORE THAN ONE MODULE
Acromag offers a straight-through patch cable (Model 5035-355), or a
crossover cable (Model 5035-360) for use with Series 9xxEN modules.
ST
ACT
RUN
Acromag
ETHERNET
LINK
DFT RST
HOST PC
(Use Crossover Cable)
Order Acromag Cable Model 5035-360
CAT-5 UTP CABLE
UP TO 100 METERS
Note: This MDI-to-MDI connection requires the use of a crossover cable.
HOST PC CONNECTED DIRECTLY TO A MODULE
Acromag 961EN-4006
or 962EN-4006
Ethernet Module.
The ethernet port of these
modules is not automatic
MDI/MDI-X crossover
and is wired MDI.
Refer to the section “Cable Accessories” at the back of this manual for more
information on accessory cables including patch and crossover cables
available from Acromag and other vendors.
TIP:
You can significantly enhance the EMI/RFI performance of your
network connections by using Category 5E STP cable (Shielded Twisted
Pair) with shielded RJ45 plug connectors. This will also help to protect your
installation from damage due to ESD (Electro-Static Discharge). The use of
shielded cable is strongly recommended for installations in harsh industrial
environments and/or in the presence of strong electrical fields.
You can use an Ethernet switch or switching hub to build a network of
Ethernet modules, similar to that shown below. This drawing shows how to
network-connect Acromag Series 9xxEN modules to a 5-port Ethernet
switch (Acromag Model 900EN-S005). Note that the 900EN-S005 switch
includes automatic MDI/MDI-X crossover and a straight-through or
crossover cable(s) may be used to connect to the modules and the PC.
CONNECTIONS
Network
