
Ó
Warning:
Use National Electric
(NEC) or other country-
specic standard wiring
and safety practices when
wiring and connecting
this controller to a power
source and to electrical
sensors or peripheral de-
vices. Failure to do so may
result in damage to equip-
ment and property, and/or
injury or loss of life.
Watlow EZ-ZONE
®
RUI/Gateway • 7 • Chapter 2 Install and Wire
EtherNet/IP™ and Modbus TCP Communications
receive -
unused
E8
E7
E6
E5
E4
E3
E2
E1
Slot B
unused
unused
unused
receive +
transmit -
transmit +
RJ-45
pin
T568B wire
color
Signal Slot
B
8 brown unused E8
7 brown & white unused E7
6 green receive - E6
5 white & blue unused E5
4 blue unused E4
3 white & green receive+ E3
2 orange transmit - E2
1 white & orange transmit+ E1
• Donotroutenetwork
wires with power wires.
• ConnectoneEthernet
cable per device to a
10/100 mbps Ethernet
switch. Both Modbus
®
TCP and EtherNet/IP™
are available on the
network.
Note:
When changing the fixed IP address on the RUI cycle module power for new address to take ef-
fect.
DeviceNet™ Communications
CAN_L
V-
V+
CH
SH
CL
V-
T2
S2
R2
Slot B
V+
CAN_H
shield
Terminal Signal Function
V+ V+ DeviceNet™ power
CH CAN_H positive side of DeviceNet™
bus
SH shield shield interconnect
CL CAN_L negative side of DeviceNet™
bus
V- V- DeviceNet™ power return
Profibus DP Communications
485 T-/R-
+5Vdc Voltage Potential
VP
B
A
DG
trB
B
A
trA
485 T+/R+
Digital ground
Te rmination resistor B
485 T+/R+
485 T-/R-
Te rmination resistor A
• Wire T-/R- to the A
terminal of the EIA-
485 port.
• WireT+/R+totheB
terminal of the EIA-
485 port.
• Wire Digital Ground
to the common ter-
minal of the EIA-485
port.
• Do not route network
wires with power
wires. Connect net-
work wires in daisy-
chain fashion when
connecting multiple
devices in a network.
• A termination resistor
should be used if this
controller is the last
one on the network.
• If using a 150 Ω cable
Watlow provides inter-
nal termination. Place
a jumper across pins
trB and B and trA and
A.
• If external termina-
tion is to be used with
a 150 Ω cable place a
390 Ω resistor across
pins VP and B, a 220
Ω resistor across pins
B and A, and lastly,
place a 390 Ω resistor
across pins DG and A.
• Do not connect more
than 32 EZ-ZONE
devices on any given
segment.
• Maximum EIA-485
network length: 1,200
meters (4,000 feet)
• 1/8th unit load on
EIA-485 bus.
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