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User Manual

Embedded EtherNet/IP Module

GS11-EI

3. Communication Protocol

3.1 Description

GS11-EI acts as an EtherNet/IP server at the Ethernet side, serial port use user-defind protocol. The EtherNet

/ IP communication and serial communication are completely independent, through the internal input and output

data buffer of GS11-EI to realize data exchange, according to the GS11-EI serial communication protocol, the user

board can complete the input and output data exchange.

The procedure of message transmission is as follows:

GS11-EI

user

-defined

EtherNet/IP

Request1

Request2

Request

…

Request a

Request b

Request

…

Response1

Response2

Response

…

Response a

Response b

Response

…

3.2 The GS11-EI Communication Flowchart and User Program

Here are the flowcharts of two kinds of IP configuration; users can choose one of them in accordance with

specific conditions. For the chooses of this two kinds, see also the Advanced Parameters section in chapter 6.4.

Summary of Contents for GS11-EI

Page 1: ...Embedded EtherNet IP Module GS11 EI User Manual REV 1 3 SST Automation E mail SUPPORT SSTCOMM COM WWW SSTCOMM COM...

Page 2: ...defind Protocol 12 4 Dimension 14 5 Development Board 16 5 1 Appearance 16 5 2 Function 16 5 2 1 RS232 Interface 16 5 2 2 Baudrate Setting Switch 17 5 2 3 Reset Key 18 5 2 4 LED 18 6 Configuration So...

Page 3: ...User Manual Embedded EtherNet IP Module GS11 EI 2 Read I O Data 42 Write I O Data 46...

Page 4: ...the UART Optional Features 1 3 Specifications 1 Support the EtherNet IP communication protocol that follow ODVA standard 2 GS11 EI provides one Ethernet port and one UART interface included in the 20...

Page 5: ...le GS11 EI 4 7 Serial port use user defind protocol easy to realize serial port communication 8 Power 3 3VDC 3 14 3 45V 190mA 9 Environmental temperature 40 85 humidity 5 90 10 Dimension W H D 0 88 in...

Page 6: ...ection Always on Have network connection Yellow Off No network data transmitting or receiving Blinking Have network data transmitting or receiving 2 3 Interface 2 3 1 Ethernet Interface The Ethernet i...

Page 7: ...le type including power UART and GPIO The pin position and definition are as follows Pins Signals Description 1 6 NC Reserved 7 RXD UART Receive Input connect with TXD of host processor or MCU 8 TXD U...

Page 8: ...ut Active low 15 3 3V 3 3V DC power Supply 16 GND GND power Supply 17 19 NC Reserved 20 DATAEXCH Data Exchange Output and need a 10K pull up resistor on the user board Logic 1 The module is in non dat...

Page 9: ...hen the RESET pin is pulled down to GND or low to 2 88V lasting for 1 millisecond the module will be forced to reset and the host must wait for 250 milliseconds typical value after reset the module an...

Page 10: ...GS11 EI serial communication protocol the user board can complete the input and output data exchange The procedure of message transmission is as follows GS11 EI user defined EtherNet IP Request1 Reque...

Page 11: ...module will monitor its IP when it is running If IP changed it will pull up DataExch pin to logic 1 Then two cases 1 Using configuration software setting IP address mode The module will obtain an IP...

Page 12: ...e IP address and other information you can sent this initialization request message Byte EtherNet IP to user defind protocol 0 message length is 17 which includes all following bytes except the check...

Page 13: ...nts checksum when user set the GS11 EI module IP address via UART and does not use DHCP user board sends above message the value of byte 2 should be 0 and then the module will send the following messa...

Page 14: ...byte n 2 Response message of user defind protocol module user board Byte Correct response Byte Incorrect response 0 message length includes all following bytes except the check sum byte high byte fir...

Page 15: ...User Manual Embedded EtherNet IP Module GS11 EI 14 4 Dimension Unit mm Front...

Page 16: ...User Manual Embedded EtherNet IP Module GS11 EI 15 Side PCB dimension...

Page 17: ...232 interface is DB9 pin connector the description show as follow Pin Signal Description 2 RX Connect with pin TX of RS232 of PC 3 TX Connect with pin RX of RS232 of PC 5 GND Connect with pin GND of R...

Page 18: ...t the serial UART baud rate and default IP address locking For firmware update 1 2 3 4 ON 1 0 Low bit Middle bit High bit Default IP address locking Corresponding relationship of baud rate is as follo...

Page 19: ...anual reset GS11 EI 5 2 4 LED There are six indicators on the development board and the description is as follows Index Name Description 0 Power Power indicator On Power on Off Power off 1 RTS Reserve...

Page 20: ...configuration software and finish the configuration of GS11 EI System Requirements PC with 1 GHz processor or higher Windows XP Windows 7 Free disk space min 130 M Byte CD ROM drive RAM min 256 M Byte...

Page 21: ...T EIP CFG will automatically list all of the GS11 EI on the network as shown below 6 3 IP Search When the user just wants to search a known IP address device on the network click IP Search button in t...

Page 22: ...d configuration is used to set your product related parameters here you need to set the administrator password to prevent other users modify the Advanced parameters through the SST EIP CFG Select one...

Page 23: ...Parameters as shown above Name Enter a name to identify the GS11 EI module it can also be the name of user s final product IP Configuration Mode Set the device s IP address configuration mode Static...

Page 24: ...Refers to the password that you need to enter when you click the advanced configuration button on the main screen After the admin password is set you need to enter this password when configuring SST...

Page 25: ...t button in the main interface of SST EIP CFG Click Start and the SST EIP CFG will list all of the messages sent by the devices on the network After this function is enabled you need to set the IP add...

Page 26: ...ers user parameter configuration Setting the IP address via host interface UART The user board sets the IP address and other parameters through the UART The user board sets parameters such as the IP a...

Page 27: ...ters set by your user such as the IP address parameters If the IP address obtain method in Advanced Parameters choose Setting the IP address via software SST EIP CFG see section 6 6 In the main interf...

Page 28: ...as shown above Name Enter a name to identify the GS11 EI module it can also be the name of user s final product IP Configuration Mode Set the device s IP address configuration mode Static or DHCP IP A...

Page 29: ...r user parameters It is recommended not to set this password This password is for your users IP Address Report It is used to set the GS11 EI to send a packet that reports its own current IP address su...

Page 30: ...User Manual Embedded EtherNet IP Module GS11 EI 29 After this function is enabled you need to set the IP address and port number of the remote device and the auto report period as shown below...

Page 31: ...introduces the method of testing GS11 EI You can obtain the method of testing GS11 MT in GS11 MT user manual You need to use the software with GS11 EI development board We are very sorry that the tes...

Page 32: ...ss through the serial port See the Advanced Parameters in section 6 4 Input data bytes Output data bytes The value must be same with the max input and output data bytes of EtherNet IP set in the Advan...

Page 33: ...uration When choosing Setting the IP address via host interface UART click Initialize to send initial messages and enter the running status If Setting the IP address via host interface UART is not cho...

Page 34: ...User Manual Embedded EtherNet IP Module GS11 EI 33 If the connection is failed there will pop up an alert dialog and the options in the Parameters Configuration section will not be grayed...

Page 35: ...g mode the test software is the initiator of the communication and the module responds passively Transmit data After establishing the connection successfully you can click Transmit to transmit data wr...

Page 36: ...If you want to transmit data cyclically you need to check Cyclical and click Transmit button if you want to stop transmitting data cyclically you only need to uncheck Cyclical Note The format of the d...

Page 37: ...t be protected from impact and may damage the internal components The supply voltage must be controlled within the requirements of the specification to prevent the module from burning out Water must b...

Page 38: ...e I O Data There are 2 ways to read and write I O data Use I O Method to Read and Write Data The following uses RSLogix 5000 as an example to explain how to use I O method to read and write I O data R...

Page 39: ...User Manual Embedded EtherNet IP Module GS11 EI 38 In the pop out module selection window click on the in front of Communications select ETHERNET MODULE and click OK as shown below...

Page 40: ...the above figure includes Name Name the added EtherNet IP slave module GS11 EI module Comm Format Set the data type User can choose to set the data type to DINT INT SINT REAL and so on Set the name o...

Page 41: ...ommunication For the connection parameters supported by the GS11 EI see the previous chapter Note The size of Size set in the above figure the number of bytes set should be consistent with the number...

Page 42: ...bedded EtherNet IP Module GS11 EI 41 In the figure above GS11EI O Data 0 GS11EI O Data 127 is the corresponding output data address of the added GS11 EI module in the master station Click on GS11EI I...

Page 43: ...ess of the added GS11EI module in the master station Use MSG Method to Read and Write Data The following uses RSLogix 5000 as an example to explain how to use MSG to read and write I O data Read I O D...

Page 44: ...settings Message Type CIP Generic Service Type select Get Attribute Single at this point the corresponding Service Code becomes to e Hex Class 4 Hex Instance 102 64Bytes 112 128Bytes 122 256Bytes can...

Page 45: ...mat of the path is the EtherNet IP master name the slot number where the EtherNet IP master resides and the connected EtherNet IP address After the path is set up click Apply and Confirm As shown belo...

Page 46: ...EI 45 Add a MSG instruction to MainRoutine under MainProgram and select ReadTag as Message Control as shown below This is a simple instruction that can send a read request In a normal program some log...

Page 47: ...ine state Click on Control Tags and select Monitor Tags to expand ReadData as shown below The data stored at the starting address ReadData 0 is the data of the Modbus slave station read by the PLC via...

Page 48: ...Module GS11 EI 47 Go to the Monitor Tags page WriteData 0 starts to input some data in the WriteData tab The data will be output by the PLC to the GS11 EI and output to the Modbus slave device via the...

Page 49: ...e becomes to 10 Hex Class 4 Hex Instance 101 64Bytes 111 128Bytes 121 256Bytes can be set Attribute 3 Hex Source Element Select the WriteData tab Represents use the data in the WriteData tab as PLC ou...

Page 50: ...ath is the EtherNet IP master name the slot number where the EtherNet IP master resides and the connected EtherNet IP address After the path is set up click Apply and Confirm As shown below In this ex...

Page 51: ...struction to MainRoutine under MainProgram and select WriteTag as Message Control as shown below Download the PLC program to the PLC and put the PLC in the Online state The data in WriteData will be o...

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