Sensorsoft Power Sensor User Manual for SP6400J
Contents
1. lt 01h gt lt 00h gt lt 00h gt lt 00h gt lt 00h gt lt 00h gt lt 20h gt lt S5Eh gt The ID response contains four variable length null terminated strings The sequence of four strings begins at the 10 byte in the response packet To read the SSD s description count to the 10 byte in the ID response and extract the following ASCII null terminated string Following this is the manufacturer s name also a null terminated string 13 Sensorsoft Power Sensor User Manual The third null terminated string is the SSD s model number The model number can be used to uniquely identify the type of SSD so that your software can configure itself appropriately for different models of SSDs The fourth and final null terminated string is the SSD s firmware version Structure of the ID response packet Byte Description of field 1 Response byte 2 3 Packet length 4 9 Notused 10 Device name or description null terminated a Manufacturer null terminated Model Number null terminated Firmware Version null terminated Record Terminator FFh a CRC bytes 2 Sample ID response packet from a SP6400J Sensorsoft Power Sensor Byte Contents 1 lt 90h gt 2 lt 46h gt 3 lt 00h gt 4 9 lt O1h gt lt 00h gt lt 00h gt lt O1h gt lt 03h gt lt 07h gt 10 Sensorsoft TM Power Sensor lt 00h gt Sensorsoft Corp lt 00h gt SP6400 lt 00h gt 12. 02 lt 00h gt lt FFh gt ms lt 09Dh gt lt 017h gt 14 Sensorsoft Power Sensor User Manual Getting Help Limited Warranty Sensorsoft Corporation warranties Sensorsoft products to be free from manufacturing defects for a period of two years This includes parts and labor All shipping and brokerage fees are your responsibility when returning a Sensorsoft product for warranty claims The following will void the warranty and 30 day money back guarantee e signs of water or chemical damage e cracks to the housing e signs of tampering or reverse engineering Technical Support If in the unlikely event you should have problems installing or using your Sensorsoft product and the previous sections of this manual have failed to provide a solution we offer technical support to help you overcome your difficulties see web site address below No charge installation and configuration support is provided for 90 days after that there is a per incident fee Sensorsoft Corporation does not provide free support to those wishing to write their own software this is available on a charge per incident basis only Please contact us for current rates World Wide Web http www sensorsoft com E mail support sensorsoft com 30 Day Money Back Guarantee If for any reason you want to return a Sensorsoft product for a refund you can do so within 30 days calendar days of your purchase The refund does not
3. CMD byte to the last ARGUMENT byte or ADDRESS byte Send the following bytes to request a status reading Hex C1 0B 00 01 00 00 00 00 00 47 98 Send the following bytes to request the Boolean state of the sensor Hex C5 0C 00 01 00 00 00 00 00 01 OE 49 Note In the above examples the last two bytes are CRC bytes that were pre calculated 11 Sensorsoft Power Sensor User Manual Receiving responses from the Sensorsoft Power Sensor Each response packet the Sensorsoft Power Sensor returns is in the following format lt RESPONSE byte gt lt PACKETlength bytes gt lt DATA byte s gt lt CRC bytes gt RESPONSE byte A single byte response code indicating the type of response Valid codes are 90 hex or 94 hex PACKETlength bytes Two bytes indicating the total length of the packet from start to finish includes CRC bytes DATA byte s Most responses return additional data in the form of byte s In response to a command to read the sensor s Boolean state one byte is returned for DATA byte s Receiving a 00h byte in this placeholder indicates a POWER OK condition while a 01h indicates a POWER FAIL condition In response to a status command one byte is returned for DATA byte s See SENSORSOFT DEVICE STATUS BYTE FORMAT chart CRC bytes A two byte 16 bit Cyclic Redundancy Check This placeholder is filled with CRC bytes calculated by the Sensorsoft device on the entire packet from the RESPONSE byte to the last DATA byte These b
4. position modular plug for round stranded wire cables P N 5 557961 3 CATS AMP DB 9 receptacle subminiature D connector crimp snap in P N 205203 1 or 3 AMP DB 25 receptacle subminiature D connector crimp snap in P N 205207 1 or 207463 1 AMP socket crimp contact for subminiature D connectors P N 1 66504 0 AMP pin crimp contact for subminiature D connectors P N 1 66506 0 Sensorsoft Power Sensor User Manual Cable P N C2000 9 pin Serial Port to Sensorsoft Device DB 9F to RJ45 modular plug 9 pin Port Sensorsoft Device 3 TX white green RX 1 2 RX white orange TX 3 4 DTR white brown POWER V 7 7 RTS blue POWER V 4 5 SIGNAL GND green GND 2 P N C2000 is for use with PC s and most other devices which have a 9 position serial port F indicates female socket type connector Cable P N C2001 and C2002 DTE Serial Port to Sensorsoft Device DB 25 to RJ45 modular plug DTE Port Sensorsoft Device 2 TX white green RX 1 3 RX white orange TX 3 20 DTR white brown POWER V 7 4 RTS blue POWER V 4 7 SIGNAL GND green GND 2 P N C2002 is for use with Sun SPARCstation or SPARCserver serial ports A or B The DTE end of this cable uses a DB 25M connector P N C2001 is for use with PC s that have a DB 25 connector The DTE end of this cable uses a DB 25F connector M indicates male pin type connector F indicates female socket type connector Sensorsoft Power Sensor User Manual Cable P N C2012 DCE Serial Port to Sensorsoft Device DB
5. 25M to RJ45 modular plug DCE Port Sensorsoft Device 3 TX white green RX 1 2 RX white orange TX 3 6 DSR white brown POWER V 7 5 CTS blue POWER V 4 7 SIGNAL GND green GND 2 P N C2012 is for use with some multiport cards and terminal servers that have a DCE pin out M indicates male pin type connector Sensorsoft Power Sensor User Manual Writing programs for the Sensorsoft Power Sensor The following describes how to write your own programs for the Sensorsoft Power Sensor This Sensorsoft device uses a binary packet formatted master slave protocol All data is represented in the little endian format least significant byte is first and the most significant byte is last Your host computer master must send commands to and receive responses back from the Sensorsoft device slave Use the following parameters when programming the serial port where the Sensorsoft device is connected Bit rate 1200 bps Bits 8 Parity none Stop bits 1 Flow control none Null discard do not strip NULL bytes In order to make use of the port powered feature of the Sensorsoft device you must enable serial port lines DTR and RTS when the port is opened A delay of 1 2 seconds is required after opening the serial port before any commands are sent to the Sensorsoft device This delay allows the Sensorsoft device to power up correctly before it receives any commands and prevents incorrect readings You should also be aware that the Sensorsoft devic
6. Sensorsoft Sensorsoft Power Sensor User Manual Model SP6400J Manual P N 071 0033 Rev5 October 24 2014 Copyright 1999 2014 Sensorsoft Corporation All rights reserved Sensorsoft and Soft Power Sensor are trademarks of Sensorsoft Corporation Table of Contents OVOIVICWS sass E tate etapa E nano A E T oats Resta ap tae ae eee eat 4 ADOUL tS Manual iz cic cece Fash cee rdia aa ERE RA a cea cage ne sagerensstnadadeeneeeen sonar EAREN EEES 4 Installing the Sensorsoft Power Sensor eeeccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeaeeecegeeaeeeseeeaeeeseeaeeeeeenaes 5 Choosing a Location for Installation ccccceceeeeeeeeeeeeeeeeeeeeeseeeaeeeeseeeaeeeseeeaeeeseeaeeesenaeeeeeeaaees 5 Connecting the Sensorsoft Power Sensor to a Serial POFrt ececceeeeeeeeeeeeeeeeeeeteeeeeeneeeeeeeaaes 5 SP6400J Sensorsoft Power Sensor Specifications ccccccecceeceeceeceeeeeeeeeeneeceeeeeeeetesessucaeeeeees 6 Making communication cables for J Suffix Sensorsoft DEVICES cece ee eeeeeeeeeeeeeeeeeneeeeeeaes 7 Writing programs for the Sensorsoft Power SeENSOl ccccceseceeeeseeeeeeeeeeeeseeeeeeeeeenaeeeeeeneeeeeeaes 10 Sending commands to the Sensorsoft Power SENSO ecceeceeeeeeeeeeeeeeeeeeeeeeneeeeeeenaeeeeneaaes 10 Receiving responses from the Sensorsoft Power Sensor ceecceeeeeeeeeeeeeneeeeeeneeeeeeeneeeeseaaes 12 Reading the Sensorsoft ID Record cee ceeceeeeeeeeeeeneeeeeeeeeeeeeaaeeeseeaeees
7. bles The following details will assist you in doing that A properly made cable will allow your Sensorsoft device to operate reliably over long cable lengths up to 305 m 1000 ft long The Sensorsoft device modular jack connector uses the same UTP wire map as 10 BASE T and ISDN It is therefore possible to use this type of cabling system for Sensorsoft devices PIN OUT OF THE MODULAR 8 POSITION JACK PLUG ON A SENSORSOFT DEVICE Note Terminal No 1 is the terminal to the extreme left as you face the cable opening latch tab down Terminal Function UTP wire color solid tracer 1s ST Receive Data white green _ 3 STTransmitData__ white orange ble o 4 Power V_ C blue 5 Ground white blue 6 Ground orane y 8 Ground brown S O The following are suggested specialized tools and parts needed to make good quality cables Hand Tools AMP Crimping Tool P N 1 231652 0 or 2 231652 1 for modular plugs AMP 8 position modular die set P N 853400 1 AMP Crimping Tool P N 90312 1 or 90302 1 for subminiature D pin or socket contacts AMP PROCRIMPER P N 58448 2 for subminiature D pin or socket contacts AMP Insertion Extraction Tool P N 91285 1 for subminiature D connector contacts Materials Berk Tek UTP Unshielded Twisted Pair round stranded cable P N 540036 TP 4 pair 8 24 AWG wires category 4 or better 75 C AMP 8 position modular plug for round stranded wire cables P N 5 554169 3 CAT4 AMP 8
8. e has an inter packet retry time out delay This delay is one 1 second and is encoded into the Sensorsoft device s firmware If your program sends a command to the Sensorsoft device and it receives no response your program must wait at least one 1 second before re sending that command Possible reasons that a Sensorsoft device may ignore your commands can be due to data transmission CRC errors or improper power up delay during hot plugging Sending commands to the Sensorsoft Power Sensor Each command packet your host sends to the Sensorsoft Power Sensor must be in the following format lt CMD byte gt lt PACKETlength bytes gt lt ADDRESS bytes gt lt ARGUMENT byte gt lt CRC bytes gt CMD byte A single byte command indicating the desired action the Sensorsoft Power Sensor device should carry out PACKETlength bytes Two bytes indicating the total length of the packet from start to finish includes CRC bytes ADDRESS bytes The six byte 48 bit address of the device you are sending the command to For RS232 Sensorsoft Devices this is always decimal 1 10 Sensorsoft Power Sensor User Manual ARGUMENT byte The number of the Sensorsoft Power Sensor s internal register you want to read or write This byte must be 01h register 1 to read the Boolean state of the sensor This byte is not required for the status command CRC bytes A two byte 16 bit Cyclic Redundancy Check that is calculated on the entire packet from the
9. eeaeeeeeenaeeeeneieeeeneaes 13 Getting Hel a EE EEE E PE eck aap T A E E E A E da apace T E opie meatineh brag aaatapsee mane 15 kime d Waran asra iene aR a AREE R anae TAR RESE EERE AA ae TARR EA ESRA ARR RAE ETRA 15 Technical SUpport asee e aa aaa a a e E a a Ea OA Ee a E A AE a E Ea AE e Salat 15 30 Day Money Back Guarantee eeccccceeeee tenner erent ee eee eeee ee eaeeeeeeaeeeseeaeeeeeeaeeeeneneeeeneaas 15 Co 10 kc aA eR Pe NP OEP ne ee a 15 Sensorsoft Power Sensor User Manual Overview The SP6400J Sensorsoft Power Sensor is an RS232 compatible serial device based on the Sensorsoft Device Protocol The SP6400J is intended for applications where the customer needs to be immediately informed of the loss or availability of AC power source The SP6400J detects the loss or availability of AC power source using an AC DC power adapter connected to its 2 1 mm power detector jack The SP6400J provides a boolean state output indicating POWER FAIL or POWER OK The SP6400J monitors the voltage level on its 2 1 mm power detector jack using a threshold comparator Using an external AC DC power adapter the SP6400J can detect a power failure when AC line voltage drops to 50 percent of the normal line voltage See specifications in this document for appropriate AC DC power adapters to use with this device Sensorsoft Devices offer the following features and benefits over other RS232 serial devices Powered from the serial port no external power or bat
10. illan Publishing Pg 107 112 e The modem reference the complete guide to selection installation and applications 2nd edition Michael A Banks Brady Publishing 1991 Pg 27 42 12 Sensorsoft Power Sensor User Manual SENSORSOFT DEVICE STATUS BYTE FORMAT B NAME DESCRIPTION PNA 5 NV option 6 EEPROM fail A logic one condition on any of these bits indicates the condition is set or active Otherwise they are reset to logic zero It is a good practice for the host to check the status of the Sensorsoft device on a regular basis in case a bit changes state If bit 0 is set this indicates that the Sensorsoft device power supply voltage is too low When bit 3 is set this indicates that the Sensorsoft device has just powered up This bit gets reset after the status is read Bits 1 2 4 5 6 and 7 can be ignored they are not used in the SP6400J Reading the Sensorsoft ID Record Every Sensorsoft Device SSD accepts an identification ID command whose response can be used to uniquely identify the type of SSD currently connected Specifically the model number and description can be extracted from the SSD s ID response allowing application software to determine the specific model of the SSD connected and to configure itself appropriately The format of the ID command is identical to the format of all other commands described earlier Send the following bytes to the SSD to request the ID Hex lt C3h gt lt OBh gt lt 00h gt
11. include shipping or brokerage fees you may have incurred or paid Returns If returning a product or item please keep in mind the follow guidelines e Contact Sensorsoft for an RMA number Return Material Authorization e Provide a detailed explanation or reason for returning the product e Return shipments that bear no RMA number on the outside of the package or are not prepaid for shipping clearing charges will be refused 15
12. server Please refer to the Sensorsoft price list for the available types of cables Plug the AC plug of the AC DC power adapter into the AC power source outlet that you wish to monitor Plug DC plug 2 1 mm of the AC DC power adapter into the power jack of the Power Sensor If you intend to make your own custom cable for a J Suffix Sensorsoft device please refer to Making communication cables for J Suffix Sensorsoft Devices If you are connecting the Power Sensor to a device server please be sure to configure the port as follows 1200 bps 8 bits no parity 1 stop bit Turn off autobaud Flow control set to none Non telnet binary raw transfer mode Assert RTS and DTR always Refer to your device server documentation for more details on the above Note the physical port number where you plugged the cable into your computer or device server If the Power Sensor is being plugged into a Windows based computer that has only one COM port the port number is usually COM1 Sensorsoft Power Sensor User Manual SP6400J Sensorsoft Power Sensor Specifications Detection Capabilities Can detect availability or loss of AC power source with boolean state output PWR_FAIL PWR_OK Maximum measurement rate one reading every second Housing Dimensions 8 cm 3 1 x 4 cm 1 6 x 2 cm 0 8 Housing Material injection molded ABS thermoplastic Housing Colour light gray Communications connector 8 position modular jack accepts 8 position pl
13. tery required CRC error detection detects transmission errors and improves reliability Virtually unlimited cable lengths 1000 ft Plug and go operation little or no user configuration required About this Manual The Sensorsoft Power Sensor may also be referred to as a Soft Power Sensor Power Sensor Sensorsoft device or SSD Sensorsoft Soft Device throughout this manual When other sections of this manual are referenced italics are used Sensorsoft Power Sensor User Manual Installing the Sensorsoft Power Sensor Installation of the Sensorsoft Power Sensor is composed of the following e Choosing a Location for Installation e Connecting the Sensorsoft Power Sensor to a serial port e Starting the Sensorsoft software Please refer to the specific software manual that applies to your installation Choosing a Location for Installation Locate the Power Sensor within 6 feet 2 m of the AC power source you are monitoring Please also keep the following points in mind e The Power Sensor can only be powered from the serial port through its RJ45 modular connector The 2 1 mm power jack is for AC power detection only e The computer or device server where you connect the Power Sensor must always be backed up by a UPS Uninterruptible Power Supply in order for it to detect AC power loss Connecting the Sensorsoft Power Sensor to a serial port Use the appropriate C200X cable to connect the Power Sensor to your computer or device
14. ug RJ45 Power source Port powered RTS and DTR both asserted Power supply current drain lt 10 mA Power detector connector 2 1 mm power jack accepts plug from AC DC power adapters such as P N PA6109 PA6209 or similar The minimum voltage on this jack must be 7 8 volts DC for a PWR_OK reading A voltage below this would give a PWR_FAIL reading Power detector method threshold voltage comparator Operating temperature range 0 C to 60 C 32 F to 140 F Communications Interface RS232C using TX RX RTS DTR and GND One device per serial port Maximum communications cable length 305 m 1000 ft using recommended cable type Low capacitance shielded cable or UTP is recommended Communications Protocol Sensorsoft Device Protocol Version 2 0 Error control 16 bit CRC cyclic redundancy checking for detection of communication errors between the device and host computer Sensorsoft Power Sensor User Manual Making communication cables for J Suffix Sensorsoft Devices In some applications it is not possible to use pre assembled cables When installing the Sensorsoft Power Sensor at a remote location it may be necessary to run cables through walls ceiling or conduits where connectors would get jammed In this situation it makes sense to run the cables and then terminate them on site using hand tools Further if your host serial port is of the DCE type some multi port serial cards it will be necessary to make your own ca
15. ytes allow the host to verify the integrity of the response packet You may choose to use or ignore these bytes depending on your programming skill or application The Sensorsoft device returns a normal RESPONSE byte 90 hex in acknowledgement that the previous host command was received and executed without errors The Sensorsoft device only acknowledges correctly received commands that have no CRC errors If the Sensorsoft device detects a CRC error in a received command packet it does not respond to the command It is considered the job of the host to time out and re transmit that command packet When an internal problem occurs inside the Sensorsoft device it sends out an abnormal response byte 94 hex in response to any command from the host If the host receives this response byte it must immediately read and interpret the Sensorsoft device s status to determine the problem See SENSORSOFT DEVICE STATUS BYTE FORMAT chart The generator polynomial used for the CRC is hexadecimal 1021 The following references provide information for readers who wish to use the CRC capability e Calculating CRC s by Bits and Bytes Greg Morse Byte Magazine September 1986 Pg 115 124 e Implementing CRC s Jack Crenshaw Embedded Systems Programming Magazine January 1992 Pg 18 45 e Technical Aspects of Data Communication John McNamara Digital Equipment Press 1982 Pg 110 122 e Data and Computer Communications 2nd edition William Stallings Macm
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