Johnson Controls FX-PCX3731 Installation Instructions Manual Download Page 12

1. Set

all

of the switches on the address DIP switch

block (128 through 1) to off.

2. Set one or more of the seven address switches (64

though 1) to ON, so that the sum of the switch
numbers set to ON equals the intended device
address. See

Table 6

for valid device addresses.

Set the highest number switch that is less than or
equal to the intended device address to ON. Then
continue setting lower numbered switches until the
total equals the intended address. For example, if the
intended device address is 21, set switch 16 to ON
first, then set switch 4 ON, followed by switch 1
(16+4+1= 21).

3. Set switch 128 to ON

only

for controllers on an

FX-ZFR Series Wireless Field Bus application. For
all hard-wired SA and FC bus applications, ensure
that switch 128 is set to off.

Note:

Do

not

connect a controller with switch 128

set to ON to an active (hard-wired) SA or FC
bus. When a controller with switch 128 set to
ON and a device address from 4 to 127 is
connected to a wired field bus, the entire field
bus is rendered inoperable until the controller
is disconnected or switch 128 is set to off.

Refer to the

FX-ZFR Series Wireless Bus System

Technical Bulletin (LIT-12011660)

for more

information on device addresses in wireless
applications.

4. Set a unique and sequential device address for each

of the controllers connected on the SA or FC bus
starting with device address 4.

To ensure the best bus performance, set sequential
device addresses with no gaps in the device address
range (4, 5, 6, 7, 8, 9, and so on). The controllers do

not

need to be physically connected on the bus in

their numerical device address order.

5. Write each controller's device address on the white

label below the DIP switch block on the controller's
cover.

Refer to the

FX-PC Series Controllers MS/TP

Communications Bus Technical Bulletin
(LIT-12011670)

for more information on controller

device addresses and how to set them on MS/TP
buses.

Table 6: SA/FC Bus Device Address Descriptions

Use on Description

Device
Address

Reserved for FC Bus Supervisory Controller
(not for use on controllers).

0

(Switch
128 Off)

Reserved for peripheral devices (not for use
on controllers).

1 to 3

(Switch
128 Off)

Used for MS/TP master devices (controllers)
that are hardwired to an SA Bus or FC Bus.

4 to 127

(Switch
128 Off)

Reserved addresses for wired slave devices
(not for use on controllers).

Note:

FX-PCX controllers ship with switch
128 ON and the remaining address
switches off rendering the controllers
wired slave devices, which do not
operate on MS/TP buses.

0 to 3

(Switch
128 ON)

Valid for MS/TP Master controllers on

wireless

FC Buses only

.

Note:

Do

not

connect a controller with

switch 128 ON to an active
(

hard-wired

) SA or FC bus. When a

controller with switch 128 ON and a
device address from 4 to 127 is
connected to a wired field bus, the
entire field bus is rendered inoperable
until the controller is disconnected or
switch 128 is set to off.

4 to 127

(Switch
128 ON)

Removing the Controller Cover

Important:

Electrostatic discharge can damage
controller components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid
damaging the controller.

Important:

Disconnect all the power sources to the
controller before removing cover and
changing the position of any jumper or the
EOL switch on the controller. Failure to
disconnect power before changing a jumper
or EOL switch position can result in damage
to the controller and void any warranties.

The controller cover is held in place by four plastic latches
that extend from the base and snap into slots on the
inside of the housing cover.

To remove the controller cover:

12

FX-PCX3731 Input/Output Module Installation Instructions

Summary of Contents for FX-PCX3731

Page 1: ...alled and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area may cause harmful interference in whic...

Page 2: ...rail channel on the back of the controller Figure 2 and position the controller snugly against the DIN rail 4 Push the bottom mounting clip inward up to secure the controller on the DIN rail To remove...

Page 3: ...resses 3 24 VAC Class 2 Supply Power Terminal Block See Supply Power Terminal Block 4 Cover Lift Tab One of Two See Removing the Controller Cover 5 Sensor Actuator SA Bus or Field Controller FC Bus Te...

Page 4: ...regulations Important Electrostatic discharge can damage controller components Use proper electrostatic discharge precautions during installation setup and servicing to avoid damaging the controller...

Page 5: ...e Table 5 for more information The SA FC bus port pin assignment is shown in Figure 6 Figure 6 Pin Number Assignments for Sensor SA Bus and FC Bus Ports on Controllers Supply Power Terminal Block The...

Page 6: ...ront of the controller 2 Ensure that the controller s device address DIP switches are set to the correct device address See Setting the Device Addresses 3 Set DIP switch 128 to ON which enables wirele...

Page 7: ...the wiring guidelines in Table 3 observe these guidelines when wiring controller inputs and outputs Run all low voltage wiring and cables separate from high voltage wiring All input and output cables...

Page 8: ...External Power Source Requirements 30 VAC maximum output voltage 0 5 A maximum output current 1 3 A at 25 duty cycle 40 mA minimum load current OUTn BINARY OUPUT External Power Source Only Binary Outp...

Page 9: ...isted wire 0 6 mm 22 AWG stranded copper 107 m 350 ft twisted wire N A 24 AWG stranded copper 100 mV maximum voltage drop Depending on cable and the connected input or output device you may have to de...

Page 10: ...ines for wire sizes cable types and cable lengths when wiring the controller communication buses and supply power In addition to the guidelines in Table 5 observe these guidelines when wiring an SA or...

Page 11: ...d FC Bus wiring recommendations in this table are for MS TP bus communications at 38 400 baud For more information refer to the FX PC Series Controller MS TP Communications Bus Technical Bulletin LIT...

Page 12: ...PC Series Controllers MS TP Communications Bus Technical Bulletin LIT 12011670 for more information on controller device addresses and how to set them on MS TP buses Table 6 SA FC Bus Device Address D...

Page 13: ...ctrique Important Do not connect an external power source to a BO when the BO power source jumper is in the internal power INT position Connecting external power to a BO that sources internal power ca...

Page 14: ...OWER Off Steady No Faults On Steady Device Fault no application loaded Main Code download required if controller is in Boot mode or a firmware mismatch exists between the controller and the FX ZFR1811...

Page 15: ...5 to 95 RH noncondensing Ambient Conditions DIP switch set valid controller device addresses 4 127 Device addresses 0 3 and 128 255 are reserved and not valid addresses Addressing BACnet MS TP RS 485...

Page 16: ...ternational BACnet Testing Laboratories BTL Protocol Revision 4 Listed BACnet Application Specific Controller B ASC The performance specifications are nominal and conform to acceptable industry standa...

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