BusWorks® Model 989EN U
ser’s Manual Modbus TCP/IP Digital I/O & Counters
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Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:
6
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 these modules to a 5-port Ethernet switch (Acromag Model
900EN-S005). Note that the 900EN-S005 switch includes automatic
MDI/MDI-X crossover and straight-through or crossover cable(s) may be
used, but it is generally not good practice to use crossover cables when
connecting to an auto-crossing switch.
✓
Connect 18-36V DC to the power terminals labeled DC+ & DC-.
Observe proper polarity. For supply connections, use No. 14 AWG
wires rated for at least 75
C.
CAUTION:
Do not exceed 36VDC peak.
+
TB3
I/
O
EXC
P
W
R
36
RTN
EXC+
34
GND
33
31
DC+
35
TB3
CH15
32
DC-
CAUTION: Risk of Electric Shock
– More than one disconnect switch may
be required to de-energize equipment before servicing.
IMPORTANT
– External Fuse:
If unit is powered from a supply capable of
delivering more than 1A to the unit, it is recommended that this current be
limited via a high surge tolerant fuse rated for a maximum current of 1A or
less (for example, see Bel Fuse MJS1).
CONNECTIONS
Network
Power
Note: Current draw figures do
not include excitation current.
Voltage
Current
(Typ)
Current
(Max)
18 VDC
66 mA
73 mA
24 VDC
49 mA
54 mA
36 VDC
33 mA
37 mA
X 5
X 4
X 2
X 1
P 1
X 3
X 4
R U N
X 3
S 1
S 2
36 35
DC-
33
DC+
32
S T
T
B
4
T
B
3
R U N
X 1
X5
X 2
LIN K
E TH E R N E T
E TH E R N E T
LIN K
LIN K
D E F
A C T
R U N
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E TH E R N E T
E TH E R N E T
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P GM
P OR T
G
N
D
DC+
P OW E R
34
31
D E F
A C T
S T
D E F
S T
A C T
E TH E R N E T
E TH E R N E T
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D E F
A C T
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E TH E R N E T
E TH E R N E T
LIN K
S T
E TH E R N E T
E TH E R N E T
R U N
R U N
HOST PC
D IP S W S 1/S 2
C FG OP TION S
CAT-5 UTP CABLE
UP TO 100 METERS
(Straight Through or Crossover Cable)
CAT-5 UTP CABLE
UP TO 100 METERS
(Straight Through or Crossover Cable)
Order Acromag Cable Model 5035-355
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CAT-5 UTP CABLE
UP TO 100 METERS
P
U
S
H
TO
R
E
S
E
T
900EN-S005
(Straight Through or Crossover Cable)
CAT-5 UTP CABLE
UP TO 100 METERS
CAT-5 UTP CABLE
UP TO 100 METERS
(Straight Through or Crossover Cable)
Acromag 900EN-S005
5-Port Ethernet Switch
or equivalent.
The ethernet port of this
switch are automatic MDI/MDI-X
crossover and do not require
crossover cables.
(Straight Through or Crossover Cable)
Acromag 989EN-4016
Ethernet Module.
The ethernet port of this
module supports
automatic MDI/MDI-X
crossover, and is wired
MDI-X
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.
Note: This MDI-to-MDI-X connection does not require the use of a crossover cable.