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Wiring a serial eia-485 network, Watlow ez-zone, Rml module – Watlow EZ-ZONE RM Limit Module Rev C User Manual

Page 30: Chapter 2 install and wire

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Watlow EZ-ZONE

®

RML Module

27

Chapter 2 Install and Wire

98
99

CF

CD
CE

B5
D6
D5

-

A

+

B

commo
n

Power

Supply

- A

+ B

common

RUI/Gateway

EZKB-_A_ _-_ _ _ _

EZ-ZONE

®

PM

fuse

EZ-ZONE

®

RML

RMLx-xxxx-xAxx

Limit Module

Slot C

- A

+ B

common

CY

CX

CZ

CE

CD

CF

99

98

98
99

CF

CD
CE

98
99

CC

CA
CB

B5
D6
D5

-

A

+

B

common

Power

Supply

- A

+ B

common

PLC

EZ-ZONE

®

PM

fuse

Slot C

- A

+ B

common

CY

CX

CZ

CB

CA

CC

99

98

EZ-ZONE

®

RML

RMLx-xxxx-x1xx

Limit Module

-

A

+

B

common

Wiring a Serial EIA-485 Network

Do not route network wires with power wires. Con-

nect network wires in daisy-chain fashion when con-

necting multiple devices in a network.

A termination resistor is required. Place a 120 Ω

resistor across T+/R+ and T-/R- of the last controller

on a network.

Only one protocol per port is available at a time:

either Modbus RTU or Standard Bus.

A network using Watlow's Standard Bus and an RUI/Gate

way .

A network using Modbus RTU