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Watlow EZ-ZONE
®
PM Integrated Controller • 23 • Chapter 2 Install and Wire
Ó
Warning:
Use National Electric (NEC)
or other country-specific
standard wiring and safety
practices when wiring and
connecting this controller to
a power source and to elec-
trical sensors or peripheral
devices. Failure to do so may
result in damage to equip-
ment and property, and/or
injury or loss of life.
Note:
Maximum wire size termina-
tion and torque rating:
• 0.0507 to 3.30 mm
2
(30 to
12 AWG) single-wire termi-
nation or two 1.31 mm
2
(16
AWG)
• 0.8 Nm (7.0 lb.-in.) torque
Note:
Adjacent terminals may be
labeled differently, depend-
ing on the model number.
Note:
To prevent damage to the
controller, do not connect
wires to unused terminals.
Note:
Maintain electrical isolation
between analog input 1, digi-
tal input-outputs, switched
dc/open collector outputs and
process outputs to prevent
ground loops.
Note:
The control output common
terminal and the digital com-
mon terminal are referenced
to different voltages and
must remain isolated.
- A
+ B
com
98
99
CF
CD
CE
B5
D6
D5
power
98
99
CF
CD
CE
- A
+ B
common
power
power
supply
- A
+ B
common
power
power
power
power
RUI/Gateway
EZKB-_ A _ _- _ _ _ _
EZ-ZONE
®
PM
EZ-ZONE
®
ST
ST_ _ - (B or F) _ A _ -_ _ _ _
98
99
CF
CD
CE
B5
D6
D5
fuse
- A
+ B
com
98
99
CC
CA
CB
B5
D6
D5
power
- A
+ B
common
power
- A
+ B
common
power
power
power
power
PLC
EZ-ZONE
®
PM
EZ-ZONE
®
ST
ST_ _ - (B or F) _ M _ -_ _ _ _
98
99
CC
CA
CB
B5
D6
D5
power
supply
fuse
A network using Watlow's Standard Bus
and an RUI/Gateway.
A network using Modbus RTU.
Wiring a Serial EIA-485 Network
Do not route network wires with pow-
er wires. Connect network wires in
daisy-chain fashion when connecting
multiple devices in a network.
A termination resistor may be re-
quired. Place a 120 Ω resistor across
T+/R+ and T-/R- of the last controller
on a network.
Only one protocol per port is avail-
able at a time: either Modbus RTU or
Standard Bus.
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
EtherNet/IP™ and Modbus TCP communica-
tions to connect with a 10/100 switch.
• Do not route network
wires with power
wires.
• Connect one Ethernet
cable per controller to
a 10/100 mbps ether-
net switch. Both Mod-
bus TCP and Ether-
Net/IP™ are available
on the network.
• A RUI may be con-
nected at the same
time using Slot C.
Note:
Avoid continuous writes
within loops. Excessive
writes to EEPROM will cause
premature EEPROM failure.
The EEPROM is rated for
1,000,000 writes.
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
DeviceNet™ Communications
CAN_L
V-
V+
CH
SH
CL
V-
T2
S2
R2
Slot B
V+
CAN_H
shield