SST-900B Wireless Modem User Manual
Contents
1. 900B User Manual v1 0 2011 05 Page 14 Baud Rate ud Rate 1200 0x00 2400 0x01 4800 0x02 9600 0x03 Bit 5 0 0 0 0 Bit 6 0 0 1 1 Bit 7 0 1 0 1 Dip Switch ud Rate 19200 38400 57600 115200 0x04 0x05 0x06 0x07 Bit 5 1 1 1 1 Bit 6 0 0 1 1 Bit 7 0 1 0 1 Dip Switch ICP DAS SST 900B User Manual v1 0 2011 05 Page 15 Debug Mode Debug Mode Normal Mode Bit 8 0 0x00 1 0x01 Dip Switch 1 Debug mode In this mode the Baud Rate is 115200 bps and the Data Format is N 8 1 It will send the settings from the RS 232 485 when it boots 2 Normal mode Data can only be transferred in this mode Debug message 7188X W 1 28 COM4 115200 N 8 1 FC 0 CTS 1 DIR C ADocuments and i n x Begin Key Thread i lt change to Line Mode TM 11 BD 76 ID 30303131 CH 8C 1 TM 11 11 0x11 Denotes that the AP mode is Slave Broadcast 2 BD 70 7 0x111 Denotes that the Baud Rate 115200 bps 0 0x00 Denotes that the Data Format is N 8 1 3 ID 30303131 30303131 0011 Denotes that the Group ID is 3 4 CH 0C 0C 0x0C Denotes that channel C is being used ICP DAS SST 900B User Manual v1 0 2011 05 Page 16 5 2 Testing the SST 900B module The SST 900B module is supported in both DCON and Modbus RTU mode The following are two examples to demonstrate the operation od the SST 900B DCON The DCON_U2. P2P mode If the modules are set to P2P mode then there will be a communication requirement between PC 1 and PC 2 However because they are acting in the roles of a server or a client they will not be able to directly communicate with each other So in this situation it would be better to set the modules to broadcast mode in order to allow communication between two nodes ICP DAS SST 900B User Manual v1 0 2011 05 Page 12 5 Quick Start instructions for the SST 900B 5 1 SST 900B Dip Switch Information Baud Rate Debug Mode RF Channel The same channel of each module will be connected SST 900B supports 16 channels Group ID The same Group ID of each module will be connected SST 900B supports 16 Group ID ICP DAS SST 900B User Manual v1 0 2011 05 Page 13 AP Mode Value Bit 0 1 Bit 1 Master Slave Bit 2 Peer to Peer Broadcast Three AP Modes are allowed which are separated into Master P2P Slave P2P and Slave Broadcast When any one of the three modes is set the Power LED red will be lit when the module boots The Power LED will remain off when the setting is Master Broadcast Master P2P 0x00 Slave P2P 0x10 Slave Broadcast 0x11 Data Format The Data Format supports 3 modes N81 O81 and E81 Data format N 8 1 0x00 0 8 1 0x01 E 8 1 0x10 Bit 3 0 0 1 Bit 4 0 1 0 Dip Switch ICP DAS SST
3. SST 900B Wireless Modem User Manual Warranty All products manufactured by ICP DAS are warranted against 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 consequent to 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 nor for any infringements of patents or other rights of third parties resulting from its use Copyright Copyright 2010 by ICP DAS All rights are reserved Trademark Names are used for identification only and may be registered trademarks of their respective companies ICP DAS SST 900B User Manual v1 0 2011 05 Page 1 Table of Contents 21 TIT OGUCTION iii id disci en re ee 3 2 5Dpecilicalols es 4 3 Product Description nemen 5 3 1 Internal I O Structure uzznnunnunnnnnnnnnunnnnnnnn nun nun nn WLR LY RL nun nn nnn 5 3 2 ADD ATANOB ee ee 5 3 3 Dimensione Unle ms 6 4 ADDIICATIONS ooi ni nn a na as ND URS 8 4L Operating Modes unse 8 4 2 ADDli atiom EXambplg iss etiaai xad aid Va ea d a a vd CUR d ten 8 5 Quick Start instructions for the SST 900B 13 5 1 SST 900B Dip Switch Information 13 5 2 Testing the SST 900B module eese 17 5 3 Installing the Hardwa
4. U Utility can be used for testing the transmission between a PC and the M 7000 module using the SST 900B module The testing method is as follows 1 Set the dip switches to the correct positions to select the Channel Group ID AP Mode Data Format and Baud Rate that you plan to use for your SST 900B module Make sure that bit 8 ICP DAS SST 900B User Manual v1 0 2011 05 Page 18 is set for Normal Mode 0x01 2 Launch the MBRTU_Utility tool 3 Select the number of the COM Port you want then adjust the Baud Rate and enter the data format in the Line Control filed Remember to click Open 4 Attempt to send a command relative to the M 7000 module B In the Command field enter a command such as 11000 T then click the Send Command button 5 If the transmission has been successful the message should appear in the Response field as indicated below HBRIU 10 7 COMI Protocol Description FCI Read multiple coils status 0xoccx for DO Net ID Station number Line control i FC 01 Reference number Byte 4 5 Bit count Polling mode no eas i CESSE Timeout Commands Packet Responses 1 Start Sk 200 Current Packet Size bytes 8 Quantity Current Packet Size bytes J 7 Total Packet bytes 40 Difference Total Packet bytes Timer mode ed period Packet Sent sent T Packet Quantity received j Interval a Polling or F Timer mo
5. de Date Time i D Polling Mode Timing ms Start time Time Start Max 000 Average 1 Stop time Time Stop Min 100 000 Command 1500FFO 01 05 00 00 FF 00 8C 34 ICP DAS SST 900B User Manual v1 0 2011 05 Page 19 5 3 Installing the Hardware 5 3 1 Serial Port RS 232 Controller ICP DAS SST 900B User Manual v1 0 2011 05 Page 20 5 3 1 Serial Port RS 485 Controller ICP DAS SST 900B User Manual v1 0 2011 05 Page 21
6. edded Controller D Interface VS mn Power Configuration GND Regulator Switch 3 2 Appearance LED Indicators Removable Terminal Block pal Antenna Debug Baud Rate Data format AP mode HHHHHHH Group ID Channel ICP DAS SST 900B User Manual v1 0 2011 05 Page 5 3 3 Dimensions Units mm CL O A Front View Back View 107 0 Left Side View Right Side View ICP DAS SST 900B User Manual v1 0 2011 05 Page 6 Bottom View Top View ICP DAS SST 900B User Manual v1 0 2011 05 Page 7 4 Applications 4 1 Operating Modes Interface Mode SST 900B SST 900B Master Slave Serial Port Peer to Peer Slave Master RS 232 RS 485 Broadcast Slave Slave 4 2 Application Example What is the difference between P2P peer to peer mode and Broadcast mode In broadcast mode all the nodes act as slaves and there can be communication between any two nodes In P2P mode the effect of a master to slave framework or a slave to master framework is identical The master will only receive data from the slave and similarly a slave will only receive data from the master In most cases using either P2P mode or Broadcast mode is suitable But in multi point cases there may be better scenarios which are described in the following section
7. nfiguration via external switch Module SST 900B Modulation Technique FSK Frequency shift keying Wireless RF Channels 16 Receive Sensitivity 100 dBm 150k bps Transmit Power Up to 20 dBm Antenna 3 dBi Omni directional antenna Reverse Polarity SMA RP SMA Plug Male Transmission Range 1000 meters LOS Maximum RF Data Rate 150k bps General CPU 8051 Module Type Master Slave Communication Interface COMO RS 232 RS 485 COMO Settings Baud Rate 1200 115200 bps Data Bit 8 Parity Check Even Odd None Stop Bit 1 LED Indicators Green RF TxD Yellow RF RxD Red Power State Power EMS Protection ESD Surge EFT and Hi Pot Required Supply 10 Voc 30 Voc Power Consumption 0 48W Connection 8 pin 5 08 mm Removable Terminal Block Mechanical Casing Plastic Flammability UL 94V 0 materials Dimensions W x L x H 84mm W x 108mm L x 33mm H Weight 160g Installation DIN Rail Environment Operating Temperature 25 75 C Storage Temperature 40 80 C Relative Humidity 0 90 RH non condensing ICP DAS SST 900B User Manual v1 0 2011 05 Page 4 3 Product Description 3 1 Internal I O Structure ex dL Rs 232 Interface GND E a Emb
8. re iei tovto an 20 ICP DAS SST 900B User Manual v1 0 2011 05 Page 2 1 Introduction The SST 900B module is integrated for data acquisition and control application between a host and remote sensors and it provides a better solution for environments where wiring is difficult The SST 900B module is a wireless module that works in a frequency range of 902 928 MHz and includes adjustable 16 RF channels and each channel can be allocated one of sixteen group IDs If data is to be transferred from one SST 900B module to another the channel number and the group ID number must be the same on both modules Both RS 232 and RS 485 interfaces are supported and the module can be configured to operate in either broadcast or peer to peer transmission mode All configurations can be completed using the external switches Connection interfaces are mutually exclusive meaning that a connection to the RS 485 can t be made when using the RS 232 and vice versa In broadcast mode all SST 900B modules operate in slave mode so they are able to receive transmissions from each other In peer to peer mode however although a multiple number of masters and slaves exist also known as a multi point structure the master will only receive transmissions from the slave and vice versa ICP DAS SST 900B User Manual v1 0 2011 05 Page 3 2 Specifications e Operating Frequency of 902 928 MHz Typical wireless transmission range is 1000 meters LOS UI Co
9. s ICP DAS SST 900B User Manual v1 0 2011 05 Page 8 4 2 1 Connecting a PC to the 7000 module Using either P2P mode or Broadcast mode is fine 4 2 2 Peer to Peer Using a 7188 module as a Bridge to connect to a 7000 series module NON KV ar E WA ra E d E ee as LI W Im nm s IN es 1 627 ne y iy ir Using either P2P mode or Broadcast mode is fine ICP DAS SST 900B User Manual v1 0 2011 05 Page 9 4 2 3 Peer to Peer PC to PC connections 7 i 885 ENG x ANN Ce SS R air QE XN NUR a EN AS gt ASDA a NS i um A O CERDO E gt 2 d y ag E EX m L AS e eos 4 gt Y Lun vv Using either P2P mode or Broadcast mode is fine ICP DAS SST 900B User Manual v1 0 2011 05 Page 10 4 2 4 Network communication Application 1 Using P2P mode is more suitable than Broadcast mode Here is a suitable where setting the modules to P2P mode would be beneficial Because both of SST 900B modules 2 and 3 are neither acting in the same roles as a slave when they are communicating with SST 900B module 1 which is acting as the master the SST 900B module 2 nor 3 will acquire unnecessary signals from each other ICP DAS SST 900B User Manual v1 0 2011 05 Page 11 4 2 5 Network communication Application 2 In this case it is better to use Broadcast mode rather than
10. tility can be used for testing the transmission between a PC and the I 7000 module using the SST 900B module The testing method is as follows 1 Set the dip switches to the correct positions to select the Channel Group ID AP Mode Data Format and Baud Rate that you plan to use for your SST 900B module Make sure that bit 8 is set for Normal Mode 0x01 2 Launch the DCON_ Utility tool 3 Click the COM Port menu item Adjust the COM Port value in the COM to Search drop down list 4 Click the Terminal menu item and select the Command Line option Adjust the Baud Rate and parity options 5 Attempt to send a command relative to the I 7000 module B Inthe Command field enter a command such as 201M then click the Send button ICP DAS SST 900B User Manual v1 0 2011 05 Page 17 6 If the transmission has been successful the message should appear in the Response field as indicated below DCON Command Terminal Module Config Baudrate Checksum Protocol Disable Enable DCON Modbus Protocol 115200 lt ccn dd i DCON Modb Sx Disable Enable odbus Ei 500 EX cy C e Parity Option None Parity N 8 1 Parity Option None Parity N 8 1 zi 801M Command s M Command 01M Response 1017067 gt 01M 1017067 3lms gt 01M 1017067 31ms Clear List Clear List Modbus RTU The MBRT
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