ICP DAS USA WF-2019/S User manual

WF-2000 Series AIO User’s Manual (Ver. 1.1, Mar./2014) ------------- 1
AIO User’s Manual
www.icpdas.com
WF-2000 Series
Wi
-
Fi
I/O
Module

WF-2000 Series AIO User’s Manual (Ver. 1.1, Mar./2014) ------------- 2
Warranty
All products manufactured by ICP DAS are under warranty regarding
defective materials for a period of one year from the date of delivery to the
original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the use of
this product. ICP DAS reserves the right to change this manual at any time
without notice. The information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is assumed by ICP DAS
for its use, or for any infringements of patents or other rights of third
parties resulting from its use.
Copyright
Copyright 2013 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be registered trademarks
of their respective companies.
Document Revision
Version Date Description of changes
1.0 2013-11-27 First Release Revision
1.1 2014-03-19 Modify WF-2019 Current
Input Wiring

WF-2000 Series AIO User’s Manual (Ver. 1.1, Mar./2014) ------------- 3
Table of Contents
1. Introduction.......................................................................................5
1.1 Wireless connection mode ................................................................. 5
1.2 Features............................................................................................. 5
1.2.1 Features Description ........................................................................ 6
1.3 Specifications..................................................................................... 7
2. Hardware .........................................................................................10
2.1 Front Panel ...................................................................................... 10
2.1.1 LED Indicator ..................................................................................11
2.1.2 I/O Connector..................................................................................11
2.2 Top Panel......................................................................................... 13
2.3 Dimensions ...................................................................................... 14
2.4 Hardware Connection ...................................................................... 16
2.4.1 Power and Serial port connection .................................................. 16
2.4.2 I/O connection ................................................................................ 16
2.5 Jumper Settings ............................................................................... 18
2.5.1 Watchdog Timer Settings ............................................................... 18
2.5.2 AI Settings...................................................................................... 18
2.6 FW / OP Dip-switch.......................................................................... 19
2.6.1 Firmware Update Mode.................................................................. 19
2.6.2 Firmware Operation Mode.............................................................. 21
3. Software...........................................................................................23
3.1 WF-2000 I/O Utility (v2.0 or later) .................................................... 23
3.1.1 Main Screen ................................................................................... 23
3.1.2 Configuration Screen...................................................................... 24
3.1.3 Analog Input Screen....................................................................... 28
4. Application Notes............................................................................31
4.1 Hardware Installation ....................................................................... 31
4.2 WF-2000 series Configuration ......................................................... 32
4.2.1 WF-2000 Series Wireless Network Configuration .......................... 32
4.2.2 PC Connection Configuration......................................................... 33
4.2.3 Access I/O data.............................................................................. 35
5. Modbus Applications ......................................................................37
5.1 What is Modbus TCP/IP?................................................................. 37
5.2 Protocol Description......................................................................... 37
5.2.1 MBAP............................................................................................. 38
5.2.2 Function Code................................................................................ 38
5.2.3 Data................................................................................................ 39

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5.2.4 Response ....................................................................................... 39
5.2.5 Data Encoding................................................................................ 40
5.3 Address Mapping ............................................................................. 41
5.3.1 WF-2017 I/O Address Mapping ...................................................... 41
5.3.2 WF-2019 I/O Address Mapping ...................................................... 42
6. Troubleshooting..............................................................................43
Appendix A. ...........................................................................................45
A.1 Analog Input Type and Data Format Table .................................................... 45
A.2 CJC (cold junction compensation) Definition................................................. 47

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1. Introduction
The WF-2000 series I/O modules have WLAN connection complies
with the IEEE802.11b/g standards. With the popularity of 802.11 network
infrastructure, the WF-2000 series I/O modules make an easy way to
incorporate wireless connectivity into monitoring and control systems.
They also support Modbus/TCP and UDP protocol and the network
encryption configuration, which makes perfect integration to SCADA
software and offer easy and safe access for users from anytime and
anywhere.
Figure 1-1:Application architecture for the WF-2000 series
1.1 Wireless connection mode
WF-2000 series support AP and Ad-hoc wireless connection modes
of WLAN.
1.2 Features
•RoHS Design
•Compatible with IEEE 802.11b/g standards
•Support infrastructure and ad hoc modes for wireless networks
•Support WEP, WPA and WPA2 wireless encryption
•Support Modbus/TCP and UDP protocols
•Support DHCP network configuration
•Wide operating temperature range
•Built-in Watchdog

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1.2.1 Features Description
The WF-2000 module offers the most comprehensive configuration to
meet specific application requirements. The following list shows the
features designed to simplify installation, configuration and application.
Compatible with IEEE 802.11b/g standards
WF-2000 module complied with IEEE 802.11b/g standard from
2.4~2.5GHz, and it can be used to provide up to 11Mbps for IEEE
802.11b and 54Mbps for 2.4GHz IEEE 802.11g to connect your wireless
LAN.
Support infrastructure and ad hoc modes for wireless networks
Ad hoc mode lets you create a wireless network quickly by allowing
wireless nodes within range (for example, the wireless devices in a room)
to communicate directly with each other without the need for a wireless
access point.
Infrastructure mode is the more common network configuration where
all wireless hosts (clients) connect to the wireless network via a WAP
(Wireless Access Point).
Support WEP, WPA and WPA2 wireless encryption
WEP and WPA are common types of security that are used to protect
wireless networks. When WEP or WPA is turned on, WF-2000 module
uses a special security key combination to allow only devices that know
this key to connect to its wireless network. This applies to laptops, smart
device, or any other wireless device.
Support Modbus/TCP and UDP protocols
The Modbus/TCP and UDP slave function on the WF-2000 module
can be used to provide data to remote HMI/SCADA software built with
Modbus/TCP driver. ICP DAS also provides NAPOPC_ST DA Server for
Modbus/TCP to integrate WF-2000 I/O series real-time data value with
OPC client enabled software.

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Built-in Multi-function I/O
Various I/O components are mixed with multiple channels in a single
module, which provides the most cost effective I/O usage and enhances
performance of the I/O operations.
Built-in Watchdog
Module Watchdog is a built-in hardware circuit that monitors the
operating status of the module and will reset the module if a failure occurs
in the hardware or the software.
1.3 Specifications
Table 1-1:System Specifications
Modules WF-2017 WF-2019
Wi-Fi Interface
Antenna 5 dBi (Omni-Directional)
Output Power 8 dBm @ 11Mbps
Receive Sensitivity -83 dBm @ 11Mbps
Standard Supported IEEE 802.11b/g
Wireless Mode Infrastructure & Ad-hoc
Encryption WEP, WPA and WPA2
UART Interface
Connector 5-pin screw terminal connector(TxD, RxD, GND)
COM1 RS-232
Baud Rate (bps) 115200
Power
Input Voltage Range 10V ~ 30V
Power Consumption 2.0W 2.2W
Mechanism
Installation DIN-Rail
Dimensions (H x W x D) 110mm x 106mm x 33mm 110mm x 95mm x 33mm
Environment
Operating Temperature -25 ~ +75℃ ℃
Storage Temperature -30℃~ +80℃
Humidity 10% ~ 90%

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Table 1-2:WF-2017 I/O Specification
Modules WF-2017
Analog Input
Channels 8-ch Differential / 16-ch Single-ended(Note), Jumper Selectable
Voltage : ±150 mV, ±500 mV, ±1 V, ±5 V, ±10 V
Input Type
Current : 0 ~ +20 mA, +4 ~ +20 mA, ±20 mA (Jumper Selectable)
Resolution 16 bit
Accuracy ±0.1% FSR
Sampling Rate 10 Hz (Total)
Zero Drift ±20 µV/°C
Span Drift ±25 ppm/℃
Common Mode Rejection 86 dB Min.
Normal Mode Rejection 100 dB
Input Impedance > 2 MΩ> 1 MΩ
Overvoltage protection
Differential
240 Vrms
Single-ended
150 Vrms
Intra-Module Isolation, Field-to-Logic 3000 VDC
Individual Channel Configuration Yes
Note: Differential mode can be used for voltage input and current input.
Single-Ended mode can be used for voltage input only.

WF-2000 Series AIO User’s Manual (Ver. 1.1, Mar./2014) ------------- 9
Table 1-3:WF-2019 I/O Specification
Modules WF-2019
Analog Input
Channels 10
Voltage : ±15 mV, ±50 mV, ±100 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V,
±10 V
Current : ±20 mA (External resistor is required)
Input Type
Thermocouple : J, K, T, E, R, S, B, N, C
Resolution 16 bit
Accuracy ±0.1% FSR
Sampling Rate 10 Hz (Total)
Zero Drift ±20 µV/°C
Span Drift ±25 ppm/℃
Common Mode Rejection 86 dB Min.
Normal Mode Rejection 100 dB
Input Impedance Voltage Input: >400 kΩ, Current Input: 125 Ω
Intra-Module Isolation, Field-to-Logic 3000 VDC
Overvoltage protection 240 Vrms
Individual Channel Configuration Yes
Open Wire Detection Yes (Software programmable)

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2. Hardware
2.1 Front Panel
The WF-2000(AIO) front panel contains the antenna, I/O connectors
and LEDs.
Figure 2-1:Front Panel of the WF-2000(AIO)
RP SMA
Connector
I/O Connector
System Status
Signal strength

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2.1.1 LED Indicator
Table 2-1:System Status Indicator
System Status Indicator
LED Module Status LED Status
Wi-Fi communication error Blink per 100 ms
Wi-Fi associate error Every 1 second flashes twice per 100 ms
Wi-Fi unable to connect error Blink per 1000 ms
Wi-Fi network configurations error Every 1 second flashes three times per
100 ms
PWR
Power failure Off
Data transmission Blink
Wi-Fi Bus Idle Off
Table 2-2:Signal Strength LED Indicator
Signal Strength LED Indicator
LED Status Signal strength
High
Medium
Low
Bad or No Signal
2.1.2 I/O Connector
2.1.2.1 WF-2017
Figure 2-2:I/O Connector of WF-2017

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2.1.2.2 WF-2019
Figure 2-3:I/O Connector of WF-2019
Figure 2-4:Pin Assignment of DB-1820

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2.2 Top Panel
The WF-2000 top panel contains the Power/Signal connector and
operating mode Selector switch.
Figure 2-5:Top Panel of the WF-2000
Operating Mode Selector Switch
FW mode: Firmware update mode
Move the switch to the OP position after the upgrade is complete.
OP mode: Firmware operation mode
In the WF-2000, the switch is alwa s in the OP position. Onl when updating the WF-
2000 firmware, the switch can be moved from the OP position to the FW position.
Table 2-3: Power/Signal Connector
Power/Signal connector
Pin Assignment Description
F.G Frame Ground
+Vs +10 ~ +30 VDC
GND Power / RS-232 GND
RxD RS-232 RxD
TxD RS-232 TxD
Operating Mode
Selector Switch
Power/RS-232
Connector

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2.3 Dimensions
The diagrams below provide the dimensions of the WF-2000 to use in
defining your enclosure specifications. All dimensions are in millimeters.
Figure 2-6:Front / Left Side dimension of the WF-2017
Figure 2-7:Front / Left Side dimension of the WF-2019

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Figure 2-8:Top / Bottom dimension of the WF-2017
Figure 2-9:Top / Bottom dimension of the WF-2019

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2.4 Hardware Connection
2.4.1 Power and Serial port connection
The following figures describe the Power and the COM port to a serial
device via serial network.
Figure 2-10:Power and Serial port wire connection
2.4.2 I/O connection
2.4.2.1 WF-2017
Figure 2-11:AI wire connection of WF-2017

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2.4.2.2 WF-2019
Figure 2-12:AI wire connection of WF-2019

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2.5 Jumper Settings
2.5.1 Watchdog Timer Settings
A watchdog timer (WDT) is a device that performs a specific
operation after a certain period of time if something goes wrong and the
system does not recover on its own. A watchdog timer can perform a
warm boot(restarting the system) after a certain number of milliseconds.
The WF-2000 series module supplies a jumper for users to active the
watchdog timer or not. If users want to use this WDT, can open the WF-
2000 cover and use the Jumper to activate the WDT built in the module,
as the Figure 2-13. Note that the default setting is active.
Table 2-4: WDT Jumper Position
Mode Jumper Number
WF-2017 JP2
WF-2019 JP1
Enable (default) Disable
Figure 2-13: Watchdog timer Jumper Position
2.5.2 AI Settings
Table 2-5: AI Input Type/Mode Jumper configuration
Modules Input Type Jumper Position
Input Mode Jumper Position
Differential
Voltage
Single-ended
WF-2017
Current Differential

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2.6 FW / OP Dip-switch
On the top of the WF-2000 series module, there is a dip-switch used
for firmware operation or firmware update of the module. The following
steps show how to use this dip-switch.
2.6.1 Firmware Update Mode
Please set the dip-switch to the “FW” position as Figure 2-7, and then
the WF-2000 series will work in the “Firmware Update Mode” after reset
the power of the module. In this mode, users can update the firmware of
the WF-2000 module from computer’s RS-232 port via CA-0910 cable
shown as Figure 2-19.
Figure 2-18:FW Position of Dip-Switch
Figure 2-19:CA-0910 Cable

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Figure 2-20:Downloads cable connection
Users just need to execute “Firmware_Update_Tool.exe” and follow
the below steps to complete the firmware updating process.
[1] Choose “COM” interface and “COM Port”.
[2] Click “Browser” button to choose firmware file. (e.g. WF20xx.fw)
[3] Click “Firmware Update” button to start firmware updating process.
The result will be shown in “Firmware Update” field.