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WF-2000 Series Wi-Fi I/O

User’s Manual (Ver. 1.0, Sep./2012) ------------- 4

4.2.3

PC Connection Test........................................................................ 39

4.2.4

Pair Connection Test ...................................................................... 42

Modbus Applications ......................................................................45

5.1

What is Modbus TCP/IP?................................................................. 45

5.2

Protocol Description ......................................................................... 45

5.2.1

MBAP ............................................................................................. 46

5.2.2

Function Code................................................................................ 46

5.2.3

Data................................................................................................ 47

5.2.4

Response ....................................................................................... 47

5.2.5

Data Encoding................................................................................ 48

5.3

Address Mapping ............................................................................. 50

5.3.1

WF-2055 I/O and Counter Address Mapping ................................. 50

5.3.2

WF-2060 I/O and Counter Address Mapping ................................. 51

Troubleshooting ..............................................................................52

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Содержание WF-2000 Series

Страница 1: ...WF 2000 Series Wi Fi I O User s Manual Ver 1 0 Sep 2012 1 User s Manual www icpdas com WF 2000 Series Wi Fi I O Module 7 495 109 02 08 sales bbrc ru www bbrc ru...

Страница 2: ...t 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 o...

Страница 3: ...onnection and Configuration Tool WF 2000 I O Utility 22 3 2 WF 2000 I O Utility 23 3 2 1 Main Screen 23 3 2 2 Basic Parameter configuration 27 Net ID 27 Network configuration 28 Wi Fi configuration 28...

Страница 4: ...45 5 1 What is Modbus TCP IP 45 5 2 Protocol Description 45 5 2 1 MBAP 46 5 2 2 Function Code 46 5 2 3 Data 47 5 2 4 Response 47 5 2 5 Data Encoding 48 5 3 Address Mapping 50 5 3 1 WF 2055 I O and Co...

Страница 5: ...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...

Страница 6: ...tly 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...

Страница 7: ...echanism is a software function that monitors the operating status of the host and is used to prevent network communication problems or host failures When a host watchdog timeout occurs the module wil...

Страница 8: ...ess 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...

Страница 9: ...Level OFF Open ON Close to GND Wet Contact Level Voltage Level OFF 4V max ON 10 V 50 V Channels 8 Max Counts 32 bit 4294967295 Counters Max Input Frequency 10K Hz Photo Isolation 3750 VDC Digital Outp...

Страница 10: ...6 Max Counts 32 bit 4294967295 Counters Max Input Frequency 10K Hz Photo Isolation 3750 VDC Digital Output Channels 6 Output Type Form A SPST NO 5A 250VAC 47 63Hz Contact Rating Resistive Load 5A 30V...

Страница 11: ...2 1 Front Panel The WF 2000 front panel contains the antenna I O connectors and LEDs Figure 2 1 Front Panel of the WF 2000 RP SMA Connector I O Connector Signal strength LED Indicator I O LED Indicat...

Страница 12: ...icator Signal Strength LED Indicator LED Status Signal strength High Medium Low Bad or No Signal Table 2 3 I O Connector WF 2055 I O Connector WF 2055 Terminal No Pin Assignment Terminal No Pin Assign...

Страница 13: ...osition after the upgrade is complete OP mode Firmware operation mode In the WF 2000 the switch is always in the OP position Only when updating the WF 2000 firmware the switch can be moved from the OP...

Страница 14: ...diagrams below provide the dimensions of the WF 2000 to use in defining your enclosure specifications All dimensions are in millimeters Figure 2 3 Front Left Side dimension of the WF 2000 Figure 2 4...

Страница 15: ...rt connection The following figures describe the Power and the COM port to a serial device via serial network Figure 2 5 Power and Serial port wire connection 2 4 2 I O connection 2 4 2 1 WF 2055 I O...

Страница 16: ...WF 2000 Series Wi Fi I O User s Manual Ver 1 0 Sep 2012 16 Figure 2 7 WF 2055 DI Wet contact wire connection Figure 2 8 WF 2055 DO wire connection 7 495 109 02 08 sales bbrc ru www bbrc ru...

Страница 17: ...ies Wi Fi I O User s Manual Ver 1 0 Sep 2012 17 2 4 2 2 WF 2060 I O Wire Connection Figure 2 9 DI Dry contact wire connection Figure 2 10 DI Wet contact wire connection 7 495 109 02 08 sales bbrc ru w...

Страница 18: ...use the JP1 to activate the WDT built in the module as the Figure 2 6 Note that the default setting is active Enable default Disable Figure 2 6 Watchdog timer JP1 Jumper Position 2 6 FW OP Dip switch...

Страница 19: ...WF 2000 Series Wi Fi I O User s Manual Ver 1 0 Sep 2012 19 Figure 2 7 FW Position of Dip Switch Figure 2 8 CA 0910 Cable Figure 2 9 Downloads cable connection 7 495 109 02 08 sales bbrc ru www bbrc ru...

Страница 20: ...e g WF2055 fw 3 Click Firmware Update button to start firmware updating process The result will be shown in Firmware Update field Figure 2 10 WF 2055 firmware update process The WF 2055 firmware can...

Страница 21: ...o set the dip switch to the OP position as Figure 2 11 and reset the power and the WF 2000 can run in the operation mode In this mode user can use the WF 2000 series with a computer or with another WF...

Страница 22: ...ation Tool WF 2000 I O Utility WF 2000 wireless connection and configuration tools can be used to set the WF 2000 wireless network interface and for TCP connection I O control and I O monitoring WF 20...

Страница 23: ...supplies several functions such as Wi Fi configuration setting module pair connection setting and DO power on safe value setting 3 2 1 Main Screen Figure 3 1 WF 2000 I O Utility main screen Menu Funct...

Страница 24: ...the pair connection setting interface as shown in Figure 3 3 DO Value This function can enter the DO Value setting interface as shown in Figure 3 4 3 About The function can show the version informatio...

Страница 25: ...3 4 Connection port number setting area System Message This area will display information for the system connection Figure 3 5 System message display area Clear Message Press this button to clear the...

Страница 26: ...80 Low 0 Bad or No Signal Figure 3 8 Signal strength display area 2 DO DI Status The following figure shows the DO DI status of the WF 2000 DI O module series Users can click the checkbox to activate...

Страница 27: ...s shown below such as network configuration Wi Fi connection settings parameters uploading and downloading interface the status bar display and so forth Figure 3 11 Basic Parameter Setting Interface N...

Страница 28: ...Wi Fi configuration interface of WF 2000 series is shown as below such as Wi Fi connection mode SSID WLK WLCH Encryption and so forth The detailed description is as the following table Figure 3 14 Wi...

Страница 29: ...of 0 9 or A F or a f Ad Hoc Mode Wi Fi Mode Ad Hoc Use Ad Hoc connectivity with another WF 2000 series or Wi Fi devices to create AD hoc wireless network SSID Service Set Identifier Connected devices...

Страница 30: ...created inside the WF 2000 series Figure 3 17 Firmware version and Date created Parameter reading function WF 2000 I O utility provides parameters download function for I WF 2000 series by RS 232 and...

Страница 31: ...3 2 3 Pair Connection Settings Screen This pair connection function is a particular feature of WF 2000 that can enable a pair of DI to DO via Modbus TCP With pair connection function enabled WF 2000 m...

Страница 32: ...e Scan Time The frequency with the remote input device will be polled Local DO Base Address DO base address of local DO register will be mapped to remote DI device Remote DI Base Address DI base addre...

Страница 33: ...reset by reset command Safe Value When the communication timeout occurs the safe value is loaded into the DO Note Default values are all off Figure 3 22 Power on value settings screen Select the Func...

Страница 34: ...of WF 2000 series module with the computer with supporting for wireless network connection structure in the application It can complete the purpose of I O control to wireless network by this way Figu...

Страница 35: ...F 2000 series will be in the operation mode Step 2 Serial port connection WF 2000 series supports RS 232 serial communication The circuit configuration is as shown in Figure 2 5 If you do not need par...

Страница 36: ...mode If the mode is AP mode wireless AP devices is needed 07 SSID Service set identifier Here set to WF 2055 08 WLK The Key of encryption Here does not have the setting 09 WLCH Wi Fi connection chann...

Страница 37: ...Network connections and entry the properties setting of wireless network connections Figure 4 5 Properties setting of wireless network connections b Select the Internet Protocol TCP IP and press the...

Страница 38: ...bnet mask as 255 255 255 0 Finally press OK button Figure 4 7 IP address setting interface 02 Wireless network connection a View available wireless networks and you can see the WF 2055 wireless networ...

Страница 39: ...nection successful interface 4 2 3 PC Connection Test 01 Connection test Connection with WF 2000 I O utility a Open WF 2000 I O utility and key in the IP address as 192 168 255 1 Port Number as 502 Fi...

Страница 40: ...odbus TCP utility and key in the IP address as 192 168 255 1 Port as 502 Finally press the Connect button b If the network settings are correct this will immediately establish a connection c Use the f...

Страница 41: ...nd set the reference number as 0x00 to get the DO output monitor data Figure 4 13 DO output monitor interface e Use the function code 0x02 and set the reference number as 0x00 to get the DI input moni...

Страница 42: ...Set the Local IP as 192 168 255 2 02 Set the Net ID as 1 03 Set the same Port Number as 502 04 Set the same Gateway as 192 168 255 254 05 Set the same Net Mask as 255 255 255 0 06 Set the same Wi Fi M...

Страница 43: ...Set the Remote Net ID as 1 04 Set the Scan Time as 500 ms 05 Set the Local DO Base address as 0 06 Set the Remote DI Base address as 0 07 Set the I O count as 8 08 Set the communication Timeout as 30...

Страница 44: ...ower on the two sets of WF 2055 02 The connection will established automatically after about 10 seconds 03 If the DI of WF 2055_1 have been triggered then the DO of WF 2055_2 will automatically output...

Страница 45: ...are etc 5 1 What is Modbus TCP IP Modbus is a communication protocol developed by Modicon in 1979 Different versions of Modbus used today include Modbus RTU based on serial communication like RS485 an...

Страница 46: ...P Header consists of 7 bytes of information Table 5 1 MODBUS Application Protocol Header Fields Length Description Transaction Identifier 2 bytes Identification of Request Response transaction Copied...

Страница 47: ...d as well as a request for too much data or data at a register address that not present 5 2 3 Data The data field of Modbus request sent from a client to server devices contains additional information...

Страница 48: ...rver returns a code that is equivalent to the original function code from the request PDU with its most significant bit set to logic 1 5 2 5 Data Encoding Modbus uses a big endian representation for a...

Страница 49: ...rd item is transmitted with the most significant byte first Function code 03 and 04 read 16 bits items at a time therefore each of these data items will fit within one register that is read Table 5 4...

Страница 50: ...1 Clear W Pulse Table 5 6 1xxxx DI address Begin Address Points Descriptions Range Access Type 0 0x00 0 7 Digital Input 0 OFF 1 ON R Table 5 7 3xxxx AI address Begin Address Points Descriptions Range...

Страница 51: ...lse Table 5 10 1xxxx DI address Begin Address Points Descriptions Range Access Type 0 0x00 0 5 Digital Input 0 OFF 1 ON R Table 5 11 3xxxx AI address Begin Address Points Descriptions Range Access Typ...

Страница 52: ...poor signal quality 3 TCP connection can not be established 1 Make sure WLAN connection is established successfully 2 Make sure the network configuration is good TCP IP Port Local IP Remote IP Gateway...

Страница 53: ...O User s Manual Ver 1 0 Sep 2012 53 Technical Support If you have problems about using the WF 2000 series I O module please contact ICP DAS Product Support Email service icpdas com 7 495 109 02 08 sal...

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