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WC20i-485-2DI-S
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FreeWave WC20i Series, WC20i-485-2DI-S, WC20i-485-2DI User And Reference Manual

WC20i Modular Endpoints - 485-2DI
Modbus
For Models: WC20i-485-2DI and WC20i-485-2DI-S
User - Reference Manual
Part Number: LUM0096AA
Revision: Apr-2018
Safety Information
The products described in this manual can fail in a variety of modes due to misuse, age, or malfunction and is not designed or intended for used in systems requiring fail-safe performance, including life safety systems. Systems with the products must be designed to prevent personal injury and property damage during product operation and in the event of product failure.
Warning! Remove power before connecting or disconnecting the interface or RF cables.
FreeWave Technologies, Inc. warrants the FreeWave® WC20i-485-2DI or WC20-485-2DI-S Modbus Modular Endpoint (Product) that you have purchased against defects in materials and manufacturing for a period of three years from the date of shipment, depending on model number. In the event of a Product failure due to materials or workmanship, FreeWave will, at its discretion, repair or replace the Product. For evaluation of Warranty coverage, return the Product to FreeWave upon receiving a Return Material Authorization (RMA). The replacement product will remain under warranty for 90 days or the remainder of the original product warranty period, whichever is longer.
N NO EVE N T W IL LFREEWAV ETEC H N O LO GI ES
I
DAM A GE S A R IS IN G F R OM TH E U S E O F OR I N AB IL IT Y T O U S E T HISPROD U C T
IN T ERR U PT I ON,LO SS OF BUSINES S INFOR M A T ION,IN ABIL IT Y T O A C C ESS OR SEN D C OMM U N IC AT I ON OR D A T A
PE R SO N AL IN JURY OR DAM A GE,OR OT H ER LOSS W H IC H MAY ARISE F R OM T HE U SE OF TH ISPROD U C T
AR R A N T Y I S E XC L U SIVE AND AL L O T H ER W A R R ANT IES EXP R ES S OR IM P LIED,IN C LUDIN G B U T N OT LIMIT ED T O
W
AN Y WAR R A N T IE S O F M ERCHAN T A BI LI T Y O R F IT N E SS F OR A PAR T ICULA R U SE ARE EXP R ES SLY D ISCLA IM E D
IT S SU P PL IE R S,OR IT S LIC ENSORS BE L IABL E F O R ANY
, INC.,
HIS I N C LU DE S B U SIN ESS
. T
. T
,
HE
.
FreeWave’s Warranty does not apply in the following circumstances:
1. If Product repair, adjustments, or parts replacements are required due to accident, neglect, or undue physical, electrical, or electromagnetic stress.
2. If Product is used outside of FreeWave specifications as stated in the Product's data sheet.
3. If Product has been modified, repaired, or altered by Customer unless FreeWave specifically authorized such alterations in each instance in writing.
FreeWave Technologies, Inc.
5395 Pearl Parkway, Suite 100
Boulder, CO 80301
303-381-9200
Toll Free: 1-866-923-6168
Fax: 303-786-9948
Copyright © 2018 by FreeWave Technologies, Inc. All rights reserved.
www.freewave.com
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual
Table of Contents
Preface 5
1. Overview 7
1.1. Operating Mode 8
2. Equipment 9
2.1. Included Equipment 10
2.1.1. Battery Powered WC20i 10
2.1.2. Solar Powered WC20i 10
2.1.3. User-supplied Equipment 10
3. WC20i-485-2DI or WC20-485-2DI-S Connections 11
3.1. Internal Connections 12
3.2. Power Connection 14
3.2.1. Battery Connection 15
3.2.2. Solar Panel Connection 16
3.3. Sensor Connection - WC20i-485-2DI / WC20i-485-2DI-S 17
3.3.1. Digital Sensor Connection 17
3.3.2. Modbus Sensor Connection 18
3.4. Sensor Connection 19
3.4.1. Dry Contact Connection 20
3.4.2. Open Collector Connection 21
3.4.3. Voltage Pulse Connection 22
3.5. Sensor Cable Routing on the WC20i 23
4. WC Toolkit Installation 24
5. WC Toolkit Update 31
6. Configuration 34
6.1. Digital Input Debounce 41
6.2. Digital Input State Latch 43
7. Modbus Program Steps Configuration 44
7.1. Create Program Steps 47
7.2. Change the Address of Program Steps 50
7.3. Delete Program Steps 53
7.3.1. Delete All Program Steps 55
7.4. Re-order Program Steps 57
8. Mounting, Battery Replacement, Cleaning 60
8.1. Direct Mount to Sensor with Short Conduit 61
8.2. Internal Lithium Battery Replacement 62
8.3. Cleaning Instructions 63
9. WC Toolkit Software Environment 64
9.1. Device Configuration window 65
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9.1.1. Settings area 69
9.1.2. Current Program Steps area 71
9.2. Digital Input Debounce window 74
9.3. State Change Latch Settings window 76
10. WAVECONTACT Network Frequencies 78
10.1. Radio Network Group Selection: 0, 1, 2, or 3 79
10.2. Radio Network Group Selection: 4, 5, 6, or 7 80
10.3. Radio Network Group Selection: 8, 9, 10, 11 81
10.4. Radio Network Group Selection: 12, 13, 14, 15 82
10.5. Radio Network Group Selection: 16, 17, 18, or 19 83
10.6. Radio Network Group Selection: 20, 21, 22, 23 84
10.7. Radio Network Group Selection: 24, 25, 26, 27 85
10.8. Radio Network Group Selection: 28 or 29 86
Appendix A: Technical Specifications 87
Appendix B: Control Drawing: 960-0076-02 89
Appendix C: Remote Modbus Registers 90
Appendix D: Connection Troubleshooting 92
Appendix E: LEDs 93
Appendix F: Available Accessories 94
Appendix G: FreeWave Legal Information 96
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual
Document Description
FreeWave Part Number
User Manual The User Manual provides setup, configuration, and safety
information for the WC20i.
LUM0096AA
Quick Start Guide The Quick Start Guide provides the out-of-the-box setup of
the WC20i.
QSG0044AA

Preface

Contact FreeWave Technical Support
For up-to-date troubleshooting information, check the Support page at www.freewave.com.
FreeWave provides technical support Monday through Friday, 8:00 AM to 5:00 PM Mountain Time (GMT -7).
l Call toll-free at 1-866-923-6168.
l In Colorado, call 303-381-9200.
l Contact us through e-mail at moreinfo@freewave.com.
Other WAVECONTACT Information
Use the FreeWave http://support.freewave.com/ website to download the latest version of these documents. Registration is required to use this website.
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Preface
Document Description
FreeWave Part Number
User Manual WC20i-Solar Installation User Manual
Note: This User Manual provides specific information for installing the WC20i Solar Kits available from FreeWave
LUM0097AA
Application Note Intrinsically Safe Installation LAN5509AA
Application Note Remote Shutdown System LAN5510AA
Document Styles
This document uses these styles:
l Parameter setting text appears as: [Page=radioSettings]
l File names appear as: configuration.cfg.
l File paths appear as: C:\Program Files (x86)\FreeWave Technologies.
l User-entered text appears as: xxxxxxxxx.
Caution: Indicates a situation that MAY cause damage to personnel, the radio, data, or network.
Example: Provides example information of the related text.
FREEWAVE Recommends: Identifies FreeWave recommendation information.
Important!: Provides crucial information relevant to the text or procedure.
Note: Emphasis of specific information relevant to the text or procedure.
Provides time saving or informative suggestions about using the product.
Warning! Indicates a situation that WILL cause damage to personnel, the radio, data, or network.
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

1. Overview

Thank you for purchasing the WC20i-485-2DI or WC20i-485-2DI-S Modular Endpoint.
The WC20i-485-2DI or WC20i-485-2DI-S Modular Endpoint is an intrinsically safe device with these features:
l RS485 connection to a single Modbus RTU sensor device
l Configurable Modbus register polling map
l Two digital inputs, perfect for high level alarms
l Reports state of dry contact inputs, open/closed, totalizer
l Report on state change
l Can power an attached Modbus sensor at 5.3V or 7.6V with configurable warm-up time
l Low power operation from an intrinsically safe, high capacity lithium primary battery pack.
l AES 128-bit Encryption
l Sends data to a WAVECONTACT Buffered WC45i-Gateway
l Optional: Solar battery system for routing Endpoints or rapid data collection.
Note: See Available Accessories (on page 94) for additional equipment.
Note: The terms node and Endpoint are used interchangeably in this document.
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1. Overview

1.1. Operating Mode

The WC20i-485-2DI or WC20i-485-2DI-S Endpoint reports the status of the digital inputs as a set of Modbus registers at its configured Modbus Slave ID.
The WC20i-485-2DI or WC20i-485-2DI-S is configured using the WC Toolkit with a list of Modbus registers to be read from the attached sensor.
Note: The attached Modbus sensor must be set to the same Modbus Slave ID as the WC20i-485­2DI or WC20i-485-2DI-S.
l The pre-configured set of registers are automatically read from the attached Modbus
sensor device and forwarded to the Modbus Gateway on a pre-defined schedule (1 minute to 5 minutes is typical).
l The register data is then buffered in the Gateway and is available to be read by the RTU
at any time.
l If the Check-in On State Change option is set, the WC20i-485-2DI or WC20i-485-2DI-S
reads the programmed Modbus register set and forwards all data to the Gateway on any state change on either of the digital inputs.
l When configured for a non-sleeping radio (radio always on) real-time Modbus reads /
writes may be done from the Gateway to the end Modbus device.
Important!: This mode of operation requires a high capacity solar battery system (WC20i-485-2DI-
S). See Available Accessories (on page 94) for more information.
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

2. Equipment

l Included Equipment (on page 10)
l Battery Powered WC20i (on page 10)
l Solar Powered WC20i (on page 10)
l User-supplied Equipment (on page 10)
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2. Equipment
Battery Powered
FreeWave Part # Qty Description
WC20i-485-2DI 1 WC20i-485-2DI Modular Endpoint
QSG0044AA 1 Quick Start Guide
Solar Powered
FreeWave Part # Qty Description
WC20i-485-2DI-Solar 11WC20i-485-2DI-S - Solar Ready, Modbus with 2 Digital Inputs
WC20i-Solar - WC20i Solar Panel kit with bracket, charger, and High Capacity battery pack
WC20i-485-2DI-S 1 WC20i-485-2DI-S - Solar Ready, Modbus with 2 Digital Inputs
Note: This is only the Solar Ready WC20i Endpoint. It does NOT include the Solar Panel kit or internal batteries.
QSG0044AA 1 Quick Start Guide

2.1. Included Equipment

2.1.1. Battery Powered WC20i

This is the equipment included with a battery powered WC20i.

2.1.2. Solar Powered WC20i

This is the equipment included with a solar powered WC20i.
The WC20i can be purchased as:
l Bundled with the solar panel.
l Solar Ready without the solar panel.
Important!: Solar Ready WC20i Endpoints DO NOT come with internal batteries.

2.1.3. User-supplied Equipment

l Philips screwdriver
l 4-pin to USB programming cable (FreeWave Part #: WC-USB-4PIN).
l Computer for WAVECONTACT device configuration.
Note: See Available Accessories (on page 94) for additional equipment.
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

3. WC20i-485-2DI or WC20-485-2DI-S Connections

l Internal Connections (on page 12)
l Power Connection (on page 14)
l Battery Connection (on page 15)
l Solar Panel Connection (on page 16)
l Sensor Cable Routing on the WC20i (on page 23)
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3. WC20i-485-2DI or WC20-485-2DI-S Connections
Internal Connections: WC20i-485-2DI or WC20i-485-2DI-S Modular Endpoint
Location # Title Description
1 Internal Lithium
Battery Pack
This is the location of the Internal Lithium Battery Pack.
2 Check-in button On the WC20i, press the Check-in button to apply power to the
configured sensor, read the sensor values, and send the collected sensor data to the Gateway.
l When the sensor is detected, the Status LED blinks once and
its data is read.
l See LEDs (on page 93) for detailed information.
l The WC20i sends the collected sensor data to the WC45i-
Gateway.

3.1. Internal Connections

These are the internal connections for the WC20i-485-2DI or WC20i-485-2DI-S Modular Endpoint:
Figure 1: Internal Connections: WC20i-485-2DI or WC20i-485-2DI-S Modular
Endpoint
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual
Internal Connections: WC20i-485-2DI or WC20i-485-2DI-S Modular Endpoint
Location # Title Description
3 Internal Antenna The Internal Antenna communicates with the WC45i-Gateway.
4 Config / Debug
connector
This is the connection for the 4-pin to USB programming cable (FreeWave Part #WC-USB-4PIN).
Note: Debug and configuration information is available through WC Toolkit if a connection is made using the RS232 Config / Debug connector and the WC-USB-4PIN cable.
5 Solar Battery
connection
This is the connection for a solar panel or external battery.
6 Status LEDs See LEDs (on page 93) for detailed information.
7 Internal
Lithium Battery
connection
The Internal Lithium Battery connection is the connection for the internal battery cable.
8 Digital Input
Sensor connector
This is the connection for the Digital Input sensor.
9 Modbus Sensor
connector
This is the connection for the chosen Modbus sensor.
10 Radio LEDs See LEDs (on page 93) for detailed information.
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3. WC20i-485-2DI or WC20-485-2DI-S Connections

3.2. Power Connection

Important!: Verify the items listed in Equipment (on page 9) are available before starting this
procedure.
It is assumed that the reader and installer have completed the FreeWave WC20i installation and setup training to follow the procedures in this document.
Power is supplied using either a:
l Battery Connection (on page 15)
l Solar Panel Connection (on page 16)
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

3.2.1. Battery Connection

Note: See Internal Lithium Battery Replacement (on page 62) to replace the battery.
1. All wiring should be neat and orderly.
2. Using the Philips screwdriver, remove the four screws holding down the WC20i cover and remove the cover.
Use the WC20i cover to hold the four screws while configuring the WC20i or when connecting or replacing the battery.
3. Verify the battery power wire is routed through the power cable hold-down clamp. (Figure 2)
Warning! The battery or solar power cable MUST only be routed through the power cable hold-down clamp and, as applicable, the solar power cable gland.
Figure 2: Battery Power Cable through the Power Cable Hold-down Clamp
4. Connect the battery power cable to the Internal Lithium Battery connection (see #7 of
Figure 1 on page 12).
5. Connect the 4-pin to USB programming cable to the RS232 Config / Debug connector (see #4 of Figure 1 on page 12).
6. Connect the USB end of the 4-pin to USB programming cable to the computer.
7. If this is the first time the WC20i is installed, wait for the drivers to install.
Important!: Depending on the computer and connection, the driver installation can take 3-6
minutes.
8. Continue with Sensor Connection - WC20i-485-2DI / WC20i-485-2DI-S (on page 17).
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3. WC20i-485-2DI or WC20-485-2DI-S Connections

3.2.2. Solar Panel Connection

1. All wiring should be neat and orderly.
2. Using the Philips screwdriver, remove the four screws holding down the WC20i cover and remove the cover.
Use the WC20i cover to hold the four screws while configuring the WC20i or when connecting or replacing the battery.
3. Verify the solar power cable is routed through the power cable hold-down clamp and the power cable gland. (Figure 3)
Warning! The battery or solar power cable MUST only be routed through the power cable hold-down clamp and, as applicable, the solar power cable gland.
Figure 3: Solar Power Cable through the Power Cable Hold-down Clamp
4. Connect the solar power cable to the Solar Battery connection (see #5 of Figure 1 on
page 12).
5. Connect the 4-pin to USB programming cable to the RS232 Config / Debug connector (see #4 of Figure 1 on page 12).
6. Connect the USB end of the 4-pin to USB programming cable to the computer.
7. If this is the first time the WC20i is installed, wait for the drivers to install.
Important!: Depending on the computer and connection, the driver installation can take 3-6
minutes.
8. Continue with Sensor Connection - WC20i-485-2DI / WC20i-485-2DI-S (on page 17).
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

3.3. Sensor Connection - WC20i-485-2DI / WC20i-485-2DI-S

l Digital Sensor Connection (on page 17)
l Modbus Sensor Connection (on page 18)

3.3.1. Digital Sensor Connection

1. Use these examples to connect the Digital Input sensors:
l Dry Contact Connection (on page 20)
l Open Collector Connection (on page 21)
l Voltage Pulse Connection (on page 22)
2. Connect the sensor terminals: (Figure 4)
a. Connect the sensor terminal to the Digital Input Sensor 1 (IN 1).
b. Optional: Connect the sensor terminal to the Digital Input Sensor 2 (IN 2).
c. Connect the sensor ground terminal to the Digital Input Sensor Ground (GND).
Figure 4: WC20i-485-2DI Digital Input 1 and 2 and GND (ground) Sensor
Connection
3. When the connection is made, continue with Sensor Cable Routing on the WC20i (on page
23).
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3. WC20i-485-2DI or WC20-485-2DI-S Connections

3.3.2. Modbus Sensor Connection

1. Connect the sensor terminals: (Figure 5)
a. The positive Modbus terminal of the sensor is connected to the Modbus A (+)
terminal on the WC20i Endpoint.
b. The negative Modbus terminal is connected to the Modbus B (-) terminal of the
WC20i Endpoint.
c. The power Modbus terminal is connected to the PWR terminal of the WC20i Endpoint.
d. The ground Modbus terminal is connected to the GND terminal of the WC20i
Endpoint.
Figure 5: MB_A+ (positive), MB_B- (negative), PWR (power), and GND
(ground) Sensor Connection
2. When the connection is made, continue with Sensor Cable Routing on the WC20i (on page
23).
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

3.4. Sensor Connection

The WC20i-485-2DI has two digital input channels:
l DN1
l DN2
l Each counter input may be:
l a Dry Contact Connection (on page 20).
l an Open Collector Connection (on page 21) (sinking ground).
l a Voltage Pulse Connection (on page 22).
l The inputs can count up to 2000 Hz.
l The digital outputs are connected to the WC20i-DI board as shown in Figure 6, Figure 7,
or Figure 8.
The counts accumulate with the current counts are stored into non-volatile memory every two hours.
l If the system is reset, the counts revert to the last stored value from non-volatile memory.
l The system reports the state of the contact closure input (open or closed) at the time of
check-in.
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3. WC20i-485-2DI or WC20-485-2DI-S Connections

3.4.1. Dry Contact Connection

Figure 6: Dry Contact Connection
Important!: When the connection is made, continue with Sensor Cable Routing on the WC20i (on
page 23).
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

3.4.2. Open Collector Connection

Figure 7: Open Collector Connection
Important!: When the connection is made, continue with Sensor Cable Routing on the WC20i (on
page 23).
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3. WC20i-485-2DI or WC20-485-2DI-S Connections

3.4.3. Voltage Pulse Connection

Figure 8: Voltage Pulse Connection
Important!: When the connection is made, continue with Sensor Cable Routing on the WC20i (on
page 23).
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

3.5. Sensor Cable Routing on the WC20i

Note: Many sensors are compatible with the FreeWave WC20i-485-2DI or WC20i-485-2DI-S
Modular Endpoint. See www.freewave.com for the most up-to-date list of these sensors.
Important!: To ensure intrinsic safety is maintained, the installer is required to follow these
procedures when connecting sensors to a WAVECONTACT Endpoint. See Figure 9 for the proper cable routing.
Procedure
1. All wiring should be neat and orderly.
2. Verify the battery power wire is routed through the power cable hold-down clamp. (Figure 2) See Battery Connection (on page 15).
3. Strip the cable wires to the sensor so that there is minimal exposed un-insulated wire when inserted into the screw terminal.
Important!: For both the battery powered and solar powered WC20i, sensor wires entering
the enclosure MUST be routed and connected as shown in Figure 9.
Figure 9: Correctly Routed Sensor Cable
4. Continue with either:
l WC Toolkit Installation (on page 24)
l Configuration (on page 34).
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual

4. WC Toolkit Installation

Note: The images in this procedure are for Windows® 7 and/or Firefox®.
The dialog boxes and windows may appear differently on each computer.
1. Click http://support.freewave.com/. The FreeWave Support site opens.
Important!: Registration is required to use this website.
Figure 10: FreeWave Login window
2. Enter the User Name and Password.
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4. WC Toolkit Installation
3.
Click . A successful Login message briefly appears. The Help Topics window opens.
4. Click the Software link.
Figure 11: Help Topics window
The Software window opens.
5. Click the WAVECONTACT Toolkit link.
Figure 12: Software window
The available software appears in the window.
6. Select and click the attachment.
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual
Figure 13: WAVECONTACT Toolkit window
The Opening dialog box opens.
Figure 14: WC Toolkit Opening dialog box
Note: This procedure shows Firefox® dialog boxes.
Other browsers will have different dialog boxes and procedures.
7. Click OK. The Enter name of file to save to dialog box opens.
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4. WC Toolkit Installation
Figure 15: Enter name of file to save to dialog box
8. Search for and select a location to save the .zip file to and click Save. The Enter name of file to save to dialog box closes.
9. Open a Windows® Explorer window and find the location where the .zip file was saved.
10. Double-click the .zip file.
11. Extract the .exe file from the .zip file into a parent location.
12. Double-click the .exe file to run the WC Toolkit installer. The Open File - Security Warning dialog box opens.
Figure 16: Open File - Security Warning dialog box
13. Click Run. The User Account Control dialog box opens.
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual
Figure 17: User Account Control dialog box
14. Click Yes. The WC Toolkit Setup Wizard starts.
Figure 18: WC Toolkit Setup Wizard - Select Destination Location window
15. Click Next to continue. The Ready to Install window opens.
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4. WC Toolkit Installation
Figure 19: WC Toolkit Setup Wizard - Ready to Install window
16. Click Install. The install process is very quick. The Installation Complete window opens.
Figure 20: WC Toolkit Setup Wizard - Installation Complete window
17. Click Finish to open WC Toolkit.
An Update message appears in the WC Toolkit window is an update is available.
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WC20i Modular Endpoints - 485-2DI Modbus: User - Reference Manual
Figure 21: WC Toolkit - Update Available message
18. Continue with the WC Toolkit Update (on page 31) procedure.
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