Johnson Controls EasyIO FW-28 User manual
Building Technology and Solutions
www.johnsoncontrols.com
2022-03-15
EasyIO FW-28 Quick Start Guide
LIT-12013879
2 EasyIO FW-28 Quick Start Guide
Contents
ContentsOverview............................................................................................................................................................5
Physical dimensions.............................................................................................................................. 7
Mounting guidelines........................................................................................................................................7
Mounting locations to avoid.................................................................................................................7
Mounting the controller on a 35mm DIN rail.....................................................................................8
Mounting the controller to an enclosure base plate.......................................................................10
Installing the antennas..................................................................................................................................10
Removing the controller cover..................................................................................................................... 11
Wiring and connecting controllers...............................................................................................................12
Wiring diagram.................................................................................................................................... 13
Controller interfacing.....................................................................................................................................14
Establishing a connection to a controller with an Ethernet LAN cable.........................................14
Establishing a connection to a controller with Wi-Fi....................................................................... 14
Interfacing with a controller's web server....................................................................................... 15
Interfacing with controller objects using CPT..................................................................................15
Related documents........................................................................................................................................ 16
Technical specifications................................................................................................................................. 17
Regulatory compliance..................................................................................................................................17
Product warranty............................................................................................................................................18
Contact information.......................................................................................................................................18
Patents.............................................................................................................................................................18
Single point of contact...................................................................................................................................18
EasyIO FW-28 Quick Start Guide 3
4 EasyIO FW-28 Quick Start Guide
Overview
The FW-28 is an input/output controller with IP network, Ethernet, and Wi-Fi connectivity. Use this
guide to complete the following tasks:
• Understand the controller components
• Mount the controller on a DIN rail or enclosure base plate
• Install the antennas
• View a wiring diagram of the controller in a system
• Connect to the controller with a LAN or Wi-Fi connection
• Connect to the controller with the CPT application
• Connect to the controller's web server dashboard with CPT Graphics
Figure 1: FW-28 legend front view
5EasyIO FW-28 Quick Start Guide
Figure 2: FW-28 legend side and back view
Table 1: FW-28 components
Callout Description
1 35 mm or 1.38 in. DIN rail
2 Enclosure mount
3 Cover screw
4 Hot (H) and Ground (G) terminals
5 Digital Output (DO) terminals
PWR Power LED
ERR Error LED
STS Status LED
TXRX Transmitting or receiving communication LED
DO1 to DO8 Digital output communication LED
RST Reset button. For more information on resetting the
controller, refer to EasyIO FW Series User Reference.
6
SVC Service button
7 Universal Output (UO) and COM (Common) terminals
8 Antenna connectors
9 Serial port terminals
10 DIN rail end clips
11 Antennas
12 Ethernet ports
13 Universal Input (UI) and COM terminals
14 Mounting clips
EasyIO FW-28 Quick Start Guide6
Physical dimensions
Figure 3: FW-28 front and side view dimensions, cm (in.)
Mounting guidelines
Do not mount the controller in a location with any of the environmental disturbances listed in
Mounting locations to avoid.
To mount the controller on DIN rail, complete the steps in Mounting the controller on a 35mm DIN
rail.
To mount the controller to an enclosure base plate, complete the steps in Mounting the controller
to an enclosure base plate.
Important: If you only use Wi-Fi connectivity for your FW Series controllers, a site survey
is mandatory. An undocumented site survey voids any return or warranty of FW products.
The wireless site survey determines the placement and number of required devices to
provide sufficient signal coverage to support a minimum data rate or throughput. A wireless
site survey also detects interference coming from other sources that could degrade the
performance of the wireless communication among devices. For more information on
obstacles that interfere with signal strength, refer to EasyIO FW Series Network Connectivity
Guide.
Mounting locations to avoid
Do not mount the controller in the following locations:
• In an area with excessive moisture, corrosive fumes, or explosion vapors
• Where excessive vibration or shock occurs
• In locations with excessive electrical noise, such as large magnetic interference, or variable
speed drive modules
7EasyIO FW-28 Quick Start Guide
Mounting the controller on a 35mm DIN rail
1. Mount a section of 35 mm or 1.38 in. DIN rail horizontally on the enclosure base plate.
Figure 4: 35 mm DIN rail
2. On the back of the controller, extend the mounting clips.
Figure 5: Extending the mounting clips
3. Hang the top mounting clip on the DIN rail and then place the controller on the DIN rail.
Figure 6: Placing the controller on the DIN rail
4. To secure the controller to the DIN rail, close the mounting clip.
EasyIO FW-28 Quick Start Guide8
Mounting the controller to an enclosure base plate
About this task:
If a DIN rail mount is not practical, the controller features two mounting holes to screw mount the
controller to an enclosure base plate.
1. Place the controller on the enclosure surface and mark the enclosure mounting holes on the
surface. For more information, see Enclosure mounting holes in Table 1.
2. Drill both holes in the enclosure base plate.
3. Screw the controller to the enclosure base plate.
Installing the antennas
1. Locate the two RP-SMA female jacks. For more information, see the following figure.
Figure 8: Locating the female antenna jacks
Table 2: Female antenna jack
Callout Description
1 RP-SMA female jacks
2. To connect the male antenna connectors to the a female RP-SMA jacks, screw on the
antennas in a clockwise direction.
Note: For a secure connection, when you tighten the antennas to the female RP-SMA
jack, hold the metal part of the RP-SMA male connector. A poor connection reduces
reception.
EasyIO FW-28 Quick Start Guide10
Table of contents
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