GENERAL PURPOSE SELF-DIALING RS-485/RS-422
Contents
1. Advanced Restore Defaults Choose the baud rate that matches the PLC or other device that will be connected to the modem Anytime a setting is saved using amp W0 or amp W1 the RS232 baud rate is memorized by the Industrial Modem The saved baud rate will be used for future communications with any attached device that does not initiate communications with the modem such as most PLCS Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 40 3 NOV 04 Step 3 You should be at a blank screen Test that you are connected by typing at lt enter gt The modem should respond with an OK if you are connected Now enter these commands Press lt enter gt after each e To dial anumber in HyperTerminal you can use the command atdt lt number gt When you have successfully connected to another modem it will show the baud rate at which you are connected Example atdt15188778346 e Tocheck whether your Industrial Modem is communicating look at the TD and RD LED s on the modem They will light up when communicating e To Hang up the connection Open the HyperTerminal session saved from the previous steps Type you should get an OK back then type ath lt enter gt The resulting OK indicates that the modem to modem connection is terminated e If you are using a terminal program other than HyperTerminal the st2. LO Black Box Corporation WI The World s Source for Connectivity GENERAL PURPOSE p99 ces of it E 8 E S E L F D A LI N G E Da Industrial Pocket Modem E RS 485 RS 422 ior j a Industrial Pocket Modems Contents at a Glance Section 1 Overview 3 Section 2 Performance Specifications 6 Section 3 Pocket Modem Mounting 7 Section 4 Electrical Connections 8 Section 5 Pocket Modem Configuration 15 Section 6 AT Command Summary 19 Section 7 S Register Summary 23 Section 8 Maintenance Information 25 Section 9 Product Support and Additional 26 Documents is Ce Class 1 Division 2 Groups A B C and D Hazardous Locations Industrial Pocket Modem User Manual INSTALLATION AND HAZARDOUS AREA WARNINGS These products should not be used to replace proper safety interlocking No software based device or any other solid state device should ever be designed to be responsible for the maintenance of consequential equipment or personnel safety In particular the manufacturer disclaims any responsibility for damages either direct of consequential that result from the use of this equipment in any application All power and input output I O wiring must be in accordance with Class 1 Division 2 wiring methods and in accordance with the authority having jurisdiction WARNING EXPLOSION HAZARD SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS 1 DIVISION
3. Te TD SIS CT S RTS NOSSO TD TD RD RD END ID oo Bes RE RS422 485 Screws RS485 MODEM Note The signal designations may vary from device to device RA SOSOO GND TD TD RD RD 123 45 67 8 ON Closed lO jo O 9 JO 19 2 2 lol lo op te ter ter torto OFF Open Recommended DIP swi ODEM for ion enabled and RS485 termina Biasing d ch settings on RS422 operation with no biasing oes not apply to RS422 RS422 485 Screws R5485 MODEM Typical RS422 On on One Wiring Refer to the or the third user manual party device on how to erminate Figure 4 5 Detailed RS 485 RS 422 Pocket Modem Wiring and DIP Switch Settings Industrial Pocket Modem User Manual Page 12 Last Revision 3 Nov 04 RS485 422 DIP Switch Summary 2 wire RS485 Cabling Receive Bias Enabled RS485 4 wire Cabling Transmit Bias Enabled RS485 2 and 4 wire Cabling 7 ON 8 OFF 2 wire Termination Enabled 7 ON 8 ON 4 wire Termination Enabled 7 ON 8 OFF 2 wire Termination Enabled 2 and 4 wire Termination Disabled Transmit Bias Disabled RS485 2 and 4 wire Cabling Receive Bias Disabled RS485 4 wire Cabling RS422 or 4 wire RS485 Cabling RS485 RS422 Network Termination The RS 485 RS 422 Pocket Modem has built in termination com
4. e Technical support and fax orders 24 hours a day 7 days a week e Phone orders 24 hours 7A M Monday to midnight Friday Saturday 8 to 4 Eastern e Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site http www blackbox com E mail info O blackbox com Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 38 3 NOV 04 Appendix A Using the Industrial Modem Wizard instead of an init string The Industrial Modem Wizard is specifically designed to save the most essential AT commands into the modems flash memory The modem will configure itself according to whatever is configured in this reliable method of storage after a power cycle or soft reset ATZO lt enter gt When the modem has been configured through the set modem wizard there is no need to repeatedly send AT commands via an initialization string in a PLC or controller In other words when the modem is set through the wizard the configuration is permanently stored Benefits of using the Industrial Modem Wizard e Easy standardization The Industrial Modem Wizard allows the user to save a configuration file 6ms for easy integration and standardization of the configuration process e The Industrial Modem Wizard is easy to use Intuitive wizard format and well labeled features makes it easy for anyone to select the essential AT commands that aff
5. 2 WARNING EXPLOSION HAZARD WHEN IN HAZARDOUS LOCATIONS DISCONNECT THE POWER BEFORE REPLACING OR WIRING MODULES WARNING EXPLOSION HAZARD DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NONHAZARDOUS The information in this manual applies to the following Black Box Industrial Pocket Modems MD3450A General Purpose Modem MD3451A Self Dialing Modem MD3452A RS 485 RS 422 Modem Industrial Pocket Modem User Manual Page 2 Last Revision 3 Nov 04 Section 1 Overview These rugged Industrial Pocket Modems have been designed for operation in electrical enclosures installed in harsh environments All Industrial Pocket Modems support all standard Hayes AT commands Fax Class 1 and Class 2 commands and S registers and therefore can be set up as external modems on any PC Industrial Pocket Modems are compatible with any telecommunications or dial up networking software Industrial Pocket Modems allow easy access to PLCs RTUs I O equipment industrial computers remote weather stations pagers and many other devices via standard analog PSTN provided dial up telephone connections The modem may be DIN rail or panel mounted adjacent to other components inside of new or existing enclosures Most Windows software can communicate through an Industrial Pocket Modem to All Industrial Pocket Modems allow communication to remote sites for data retrieval or diagnostics Note All Indus
6. Fax 724 746 0746 Industrial Pocket Modem User Manual Page 26 Last Revision 3 Nov 04 Certification Notice for Equipment Used The Canadian Department of Communications label identifies certified equipment This certification means the equipment meats certain telecommunications network protective operation and safety requirements The Department does not guarantee the equipment will operate to the users satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection In some cases the companies inside wiring associated with single line individual service may be extended by means of a certified connector assembly extension cord The customer should be aware that compliance with the above conditions might not prevent degradation of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility in this case your supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together The preca
7. V22B 0 1200 1200 1200 1200 2400 V34 1 300 2400 300 2400 2400 V34 0 2400 2400 2400 2400 4800 V34 1 300 4800 300 4800 4800 V34 0 4800 4800 4800 4800 9600 V34 1 300 9600 300 9600 9600 V34 0 9600 9600 9600 9600 14400 V34 1 300 14400 300 14400 14400 V34 0 14400 14400 14400 14400 19200 V34 1 300 19200 300 19200 19200 V34 0 19200 19200 19200 19200 28800 V34 1 300 28800 300 28800 28800 V34 0 28800 28800 28800 28800 33600 V34 1 300 33600 300 33600 33600 V34 0 33600 33600 33600 33600 PAGE34 Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC 3 NOV 04 The H command to enable disable RPI Rockwell Protocol Interface Rev 1 modem If you are a long time customer of the Rev 1 modem you may already be accustom to using the H command This command is used to enable disable Rockwell Protocol Interface and set the DTE modem serial port speed This command is defined as HO Disable protocol interface and video ready mode H1 Enable RPI mode and set DTE speed to 19200 bps H2 Enable RPI mode and set DTE speed to 38400 bps H3 Enable RPI mode and set DTE speed to 57600 bps H11 Enable RPI mode When in RPI mode a link is established between the modem and the WinRPI or WinRPI95 host PC software driver to allow the modem to support protocol V 42bis LAP M MNP2 5 connections with a remote modem This command should only be used whe
8. lt enter gt is sent at different parameters Rey 2 and 3 modems The Rev 2 and 3 modems do not support the RPI feature at all so there is no need to use this command in any AT command strings for this modem Do not include the H command in AT commands sent to the Rev 2 and 3 modems because the modems will return an ERROR Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 35 3 NOV 04 2 The BDR command sets the modems serial DTE speed and automode Rev 1 modem The BDR command forces the modem to select a specific DTE modem baud rate without further speed sensing on the interface When a valid BDR n command is entered the OK result code is sent at the current assumed speed After the OK has been sent the modem switches to the speed indicated by the BDR n command it has just received Parameters n 0 48 New baud rate is n 2400 bps Default 0 Result Codes OK For the supported speeds ERROR Otherwise Command options BDR Returns the current setting of the BDR command as an ASCII decimal value in result code format BDR Returns a message indicating the speeds that are supported BDR 0 Enables auto baud detection on the DTE interface BDR n Where 1 lt n lt 48 Sends OK message at current speed then switches to the new speed defined by n 2400 bps unless and until another BDR n command is received Auto baud
9. maintain compatibility when replacing an older modem with an Industrial Pocket Modem By default the modem will permit any data transfer rate up to 115 2 kbps when data compression is enabled If you experience intermittent or unreliable communication try setting the modem to modem speed in the Setup Wizard to a lower value to restrict the phone line speed Remember to load the new configuration to the modem Industrial Pocket Modem Profile Summary Here is a summary of the active configuration user profile 0 user profile 1 and the factory defaults when the modem is shipped Each time the modem is powered up first the factory default settings as listed in Section 6 are loaded into the active configuration Next the designated user stored profile is loaded into the active configuration User profile O is loaded by default see the amp Y command in Section 6 and it contains all factory defaults with the exception that it is set to auto answer register SO 1 and ignore the DTR signal amp DO The User profile 1 contains all normal factory defaults as listed in Section 6 ACTIVE PROFILE B1 El L1 M1 NO QO T V1 WO X4 YO amp C1 amp DO amp GO amp JO amp K3 amp Q5 amp RI amp SO amp TS amp X0 amp YO S00 001 S01 000 S02 043 S03 013 S04 010 S05 008 S06 002 S07 050 S08 002 S09 006 S10 014 S11 085 S12 050 S18 000 S25 005 S26 001 S36 007 S38 020 S46 138 S48 007 S95 000 STORED PROFILE O B1 E1 L1 M1 NO QO T V1 WO X4 YO am
10. 0 300 300 1200 2 1 300 1200 1200 2 0 1200 1200 2400 11 1 300 2400 2400 11 0 2400 2400 4800 11 1 300 4800 4800 11 0 4800 4800 9600 11 1 300 9600 9600 11 0 9600 9600 14400 11 1 300 14400 14400 11 0 14400 14400 19200 11 1 300 19200 19200 11 0 19200 19200 28800 11 1 300 28800 28800 11 0 28800 28800 33600 11 1 300 33600 33600 11 0 33600 33600 Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 32 3 NOV 04 Important Note While using HyperTerminal or an initialization string to enter the modem to modem speed settings to the modem s memory an AT amp WO lt enter gt must be entered after the MS command The AT amp WO command cannot be entered in the same line as the MS command Example AT MS 11 0 9600 9600 amp WO lt enter gt is not a valid AT command but AT MS 11 0 9600 9600 lt enter gt and AT amp WO lt enter gt are valid Rev 2 modem In place of S37 and N the Rev 2 modem uses only the MS command The MS command is defined as MS lt mod gt lt automode gt lt Min TX and RX rate gt lt Max TX and RX rate gt The only difference between the Rev 1 and Rev 2 is the way the modulation is applied Instead of the Rev 1 s numeric modulation the Rev 2 uses an alpha numeric modulation Compare the lt mod gt field definition table below with the Rev 1 table lt mod gt M
11. 14400 12000 9600 7200 or 4800 V 34 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 2400 56 K56flex 56000 54000 52000 50000 48000 46000 40000 38000 36000 34000 32000 64 Bell 103 300 69 Bell 212 1200 fi lt automode gt Option Selected 0 Automode disabled Sets fixed speed The modem will only try to connect at that speed 1 Automode enabled without V 8 except for V 34 Sets Auto Detect speed The will first try to connect at the highest speed defined in the string then step down until it is successful in negotiating a speed 2 Automode enabled with V 8 for any applicable modulation Sets Auto Detect speed Same as N1 Not typically used Example AT MS 11 0 9600 9600 lt enter gt is the equivalent to ATS37 9N0 lt enter gt command The table below has a complete list of all the modem to modem speed settings in auto detect and fixed modes For the Rev 1 modems These settings can be set through the Industrial Modem Wizard by simply clicking a radio button and selecting a speed or the string can by manually typed using HyperTerminal See the last section in this document about using HyperTerminal Auto Detect Commands listed below Fixed Speed Commands listed below Speed should all include an Settings should all include an Settings AT MS at the beginning AT MS at the beginning 300 0 1 300 300 300 0
12. 300 9600 9600 V34 0 9600 9600 14400 V34 1 300 14400 14400 V34 0 14400 14400 19200 V34 1 300 19200 19200 V34 0 19200 19200 28800 V34 1 300 28800 28800 V34 0 28800 28800 33600 V34 1 300 33600 33600 V34 0 33600 33600 Rev 3 modem Is almost implemented exactly the same as the Rev 2 modem with one exception There are now separate TX and RX speed settings The MS command is defined as MS lt mod gt lt automode gt lt Min TX rate gt lt Max TX rate gt lt Min RX rate gt lt Max RX rate gt So to send the command to lock the speed in at 9600 with V 34 modulation you should enter AT MS V34 0 9600 9600 9600 9600 lt enter gt Example MS V34 0 9600 9600 9600 9600 is equivalent to the Rev 1 s AT MS 11 0 9600 9600 and the Rev 2 s AT MS V34 0 9600 9600 The table below has a complete list of all the modem to modem speed settings in auto detect and fixed modes used for the Rev 3 modem These settings can be set through the Industrial Modem Wizard by simply clicking a radio button and selecting a speed or the string can by manually typed using HyperTerminal See the last section in this document about using HyperTerminal Auto detect Commands listed below should Fixed Commands listed below should speed all include an AT MS at the Speed all include an AT MS at the Settings beginning Settings beginning 300 V21 1 300 300 300 300 300 V21 0 300 300 300 300 1200 V22B 1 300 1200 300 1200 1200
13. 30mA in Low Power mode for General Purpose Self Dial typical 55mA O 24VDC and 35mA in Low Power mode for RS 485 RS 422 typical Certification FCC Part 15 and FCC Part 68 UL 508 CSA C22 2 14 ACA TS 001 1997 ACA TS 002 1997 AS NZS3260 1993 AS NZS3548 1995 CTR21 98 482 EC EN55022 R amp TTE 99 S EEC IEC 950 1991 Operating Temperature Storage Temperature Humidity Mounting Dimensions 3 23 W x 4 75L x 1 35H inches 8 2 W x 12 1 Lx 3 4H cm Trigger Input From PLC Connects to PLC output Starts auto dialing upon transition from OFF to ON Modem will stay connected while input is ON Voltage Range Input Current Max OFF Voltage On line Output To PLC Output Characteristics Max Output Current Industrial Pocket Modem User Manual Page 6 Last Revision 3 Nov 04 Section 3 Modem Mounting Pocket Modems snap onto standard DIN rail DIN EN 50022 or can be mounted to a flat panel using 6 or 8 screws See Figure 3 1 The modem can be installed in any orientation adjacent to other DIN rail components or in any convenient location within the enclosure The modem should be installed within 6 feet of the device it will be connected to FRONT VIEW 0 280 71cm 2 92 742cm al 803cm aa bunk EN 50022 a017 60 42 ra for 4 474011L35cm 1 35 B gerea 4 75 T12 07cn Soe leaden Figure 3 1 Pocket Modem Dimensions All Models For DIN rail mounting hook the top rear of the modem onto t
14. Label 1 00 1 04 1 06 1 08 1 04 1 05 2 00 HyperTerminal ati3 V2 100 V34 2M DLS P2109 V90 CX81802 V34 RS 485 RS 422 Modem Wizard Rev 1 Rev 2 Rev 3 Back Label 1 00 1 02 1 04 1 06 1 02 1 03 2 00 HyperTerminal ati3 1V2 100 V34 2M _ DLS P2109 V90 CX81802 V34 Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 30 3 NOV 04 AT command differences and how to change your initialization string This section defines some of the commonly used AT commands and notes the difference in the way they are implemented in different Revisions of the modem This section refers to the modems using the Industrial Modem Wizard s notation of Rev 1 Rev 2 and Rev 3 see the section above 1 The S37 and N command versus the MS command to set the modem s line speed Rev 1 modem S37 n is used to set the desired line connection speed Where n 1 3 Attempt to connect at 300 bps Attempt to connect at V 22 1200 bps Attempt to connect at V 22 bis 2400 bps Attempt to connect at V 23 Attempt to connect at V 32 bis V 32 4800 bps Ol eC NTA ta Attempt to connect at V 32 bis V 32 9600 bps Attempt to connect at V 32 bis 12000 bps Attempt to connect at V 32 bis 14400 bps Attempt to connect at V 32 bis 7200 bps The N command sets
15. Max MNP Block Size Bn Transmit Break to Remote sets the length of break signal sent to remote modem in non error correction mode MS Select Modulation allows control of the modulation the modem uses to negotiate a connection E VOR 46C1 FASE Cn Mn Enable Cellular Power Level Adjust only included for compatibility and amp Zn x Store phone number n 0 to 3 and x dial string Industrial Pocket Modem User Manual Page 20 Last Revision 3 Nov 04 FE performs no function performs no function no function B D Kn UD Voice Commands ET A Z BDR CID CLS MDL MFR REV HTL VBQ VBS VBT VCI VLS VRA VRN VRX VSD VSK VSP VSR VSS VTD VTM Industrial Pocket Modem User Manual Page 21 Last Revision 3 Nov 04 CalerID o O VCID nabling and configuring parameters of Caller ID detection Synchronous Access Mode Enable Disable Synchronous Access Mode in the client or central site modem Configures the Operation of the Synchronous Access Submode Selects Transmit Flow Control Thresholds Fax Commands Select Active Service Class Report revision ID Flow Control Industrial Pocket Modem User Manual Page 22 Last Revision 3 Nov 04 Section 7 S Register Summary Note The following tables only summarize the supported S registers A more detailed description for each S register may be found in the online help system of the Setup Wizard It Backspa
16. ce character 0 255 ASCII Maximum time to wait after going off hook to dial 2 255 when blind dialing E Nn ja 2 2 Carrier detect response time duration that carrier 1 255 0 1s must be present for modem to consider it a valid connection 0 Carrier loss disconnect time carrier must be absent for 1 255 0 1s this time for modem to consider it a lost connection 1 S11 DTMF tone duration 50 255 0 001s 9 S12 Escape prompt delay this delay must be present after 0 255 0 02s 50 receipt of the last character of the escape sequence before receipt of any other character for the escape sequence to be recognized 13 Reserved CE Te S14 General bit mapped options indicates the status of the 138 8 following options echo quiet mode results codes Ah tone pulse and originate answer S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S1 sec sec sec so eS PS s3 SM na Es Maximum time to wait for carrier after dialing before 1 255 hanging up s8 sec su 4 5 S21 V24 general bit mapped options indicates the status of the following options CTS amp Rn DTR amp Dn DCD amp Cn DSR amp Sn long space disconnect Yn S22 Speaker results bit mapped options indicates the status of the following options speaker control Ln Nn Nn 255 52 34 h ES EM a 1177 5h volume Mn results codes Xn General Bit Mapped Options Sleep inactivity timer sets the length of time that
17. ch time the RS232 or RS485 RS422 cable is disconnected and then reconnected The serial port of the modem may not function properly if power is not cycled Resetting the modem all models If it ever becomes necessary to completely reset the modem including both user profiles to the basic factory default settings the following command can be issued AT amp F amp WEW 1 CR This command string will load the factory defaults into the active configuration amp F and then save those settings into both user profile O amp W and user profile 1 amp W1 Note that after the modem is reset completely to the factory defaults it will no longer be set to auto answer which is often necessary for the modem to work when connected to a remote device Use the Setup Wizard to adjust these settings appropriately Industrial Pocket Modem User Manual Page 25 Last Revision 3 Nov 04 Section 9 Product Support and Additional Documents FCC Requirements for Consumer Products The Federal Communications Commission FCC has established rules which permit this device to be directly connected to the telephone network Standardized jacks are used for these connections This equipment should not be used on party lines or coin lines If this device is malfunctioning it may also be causing harm to the telephone network this device should be disconnected until the source of the problem can be determined and until repair has been made If this is not done th
18. dows will then complete the boot up process The standard Windows driver is used for the Industrial Pocket Modem Although the modem supports baud rates to 33 600 bps the selections in Windows are limited to 28800 bps To verify that the modem has been installed select Start gt Settings gt Control Panel and then double click the Modems icon The modem should be listed as Standard 28800 bps Modem Here is an alternate modem installation procedure use if the PC is already powered up 1 2 3 4 5 6 Connect the DC power communications cable STRAIGHT THROUGH or equivalent and telephone line as described above Select Start gt Settings gt Control Panel and then double click the Modems icon The Install New Modem dialog box will appear Do not select the Don t detect my modem I will select it from a list Instead click Next and allow Windows to search the COM ports and detect the modem Windows should find a modem called Standard Modem Click Next and Windows will complete installation of the Standard Modem Alternately click Change and select Standard Modem Types from the Manufacturers list and Standard 28800 bps Modem from the Models list To verify that the modem has been installed select Start gt Settings gt Control Panel and then double click the Modems icon The modem should be listed as either a Standard Modem or a Standard 28800 bps Modem depending on the step
19. e 4 5 6 7 8 T TD R RD GND TD CTP ee RS422 485 Screws on RS485 MODE 12345 67 8 ON Closed o O o ol fol 2 19 o Tol fal 1 o 1 O OFF Open Recommended DIP switch settings on the RS485 MODEM for 2 wire RS485 operation with biasing and termination enabled Typical 2 Wire RS485 Multidrop Wiring Typical RS485 4 Wire on 3rd Party Device Typical RS485 4 Wire on rd Party Device If this was an end station then oe SSoos refer to this OR device s manual on GND RD so Er GND RD Roma iE how to terminote e e e e 4 5 6 7 8 S S S S S Note The signal designations may GND TD TD RD RD vary from device to device RS422 485 Screws on RS485 MODEM 123 4567 8 ON Closed 2 o o 2 fo 2 fo fo o lol fal o Q OFF Open Recommended DIP switch settings on the RS485 MODEM for 4 wire RS485 operation with biasing and ermination enabled Typical 4 Wire RS485 Multidrop Wiring Typical RS422 Connections on 3rd Party Device Typical RS422 Connections on 3rd Party Device SOQQodgsg GND RD RD TD TD cps CIS QOS RIS RTS OR AEE GND RD RD
20. e telephone company may temporarily disconnect service If you have problems with your telephone equipment after installing this device disconnect the device from the line to see if it is causing the problem If it is contact your supplier or an authorized agent The telephone company may make changes in its technical operations and procedures if such changes affect the compatibility or use of this device the telephone company is required to give adequate notice of the changes If the telephone company requests information on what equipment is connected to their lines inform them of A The telephone number that it is connected to B The Ringer Equivalence Number 0 3 C The USOC jack required RJ11 and D The FCC Registration Number SKN USA 34579 MD E Items b and d are indicated on the label The ringer equivalence number REN is used to determine how many devices can be connected to your telephone line In most areas the sum of the RENSs of all devices on any one line should not exceed five 5 0 If too many devices are attached they may not ring properly In the event of equipment malfunction all repairs should be performed by our Company or authorized agent It is the responsibility of users requiring service to report the need for service to our company or one of our authorized agents IN Black Box Corporation Wi The World s Source for Connectivity 1000 Park Drive Lawrence PA 15055 1018 Phone 724 746 5500
21. ect modem communication e Easy AT command customization If the Industrial Modem Wizard does not include an AT command that you need to use there is an easy to use text box that allows any string to be sent and saved into the modem s rugged flash memory e Excellent help files Industrial Modem Wizard help is accessible from any wizard window and shows the equivalent AT commands for every feature in set modem wizard This will help the user convert any initialization sting into a set modem configuration file 6ms Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 39 3 NOV 04 Appendix B Using HyperTerminal to send AT commands to the modem Windows HyperTerminal steps Step 1 Connect your Industrial Modem to your computer using the straight thru cable or an equivalent cable Open Windows HyperTerminal This program is included with all Windows versions Refer to the Self D ialing user manual for more details Enter a name for your connection Step 2 Under Connect Using select Direct to Com X where X isthe COM port the modem is connected to Another window will appear Enter the following settings where Bits per second is the desired PLC baud rate then press OK COM1 Properties 20x Part S ettings Bits per second 800 Data bits E 7 Parity None Stop bits Pot Flow control None
22. ened to a maximum of 3 48 in lbs Telephone Cable Connect an analog phone line to the RJ 11 jack as appropriate RS485 RS422 Cabling and DIP Switch Settings Refer to Figure 4 4 for typical wiring configurations Fabricate a cable to connect the modem s RS485 RS422 port to the field device s Refer to figure 4 5 on the next page The RS 485 RS 422 Pocket Modem has DIP switches These switches establish the mode of operation for the RS485 RS422 port Set these switches to match the type of wiring connected to the RS485 RS422 port Refer to Figure 4 5 on the next page It is not necessary to cycle power to the modem if DIP switch changes are made Modem R5232 Pert Signal BCD EE RS485 Port apa DTR in Sew Signal Sig GND DSR out RTS in CTS out RI out au 5 10 52 VDC Input O NDNA UN o Line aes T GNOD DIR TO RO oco co R SE ESSES iva TR 10 voc ET aia Port RD RI CTS RTS DSR TD 1 Power q MANDAR al 5 e a a ela orr C1 fd fel dl fl el a Rs485 RS422 Option Switches 00000 z RD Bias Ea Ino TD Bios Enabled Disobled tr aa Figure 4 4 Pocket Modem RS 485 RS 422 Wiring Industrial Pocket Modem User Manual Page 11 Last Revision 3 Nov 04 Typical RS485 2 Wire on 3rd Party Device OS SO CND If this was an end station then refer to this device s manual on how to terminat
23. eps may be different However the commands will remain the same Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 41 3 NOV 04 AS NZS3548 1995 WARNING This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate action Germany Diese All Models als Endeinrichtung vorgesehen und muss an ein TAE mit F Kodierung angeschlossen werden All Models are terminal equipment which must be connected to the PSTN using an F coded connector plug TEC950 1991 The Industrial Pocket Modem shall be connected to Telecommunications Network through a line cord approved by the necessary authorities of the country The Industrial Pocket Modem shall be utilized with a power supply approved by the necessary authorities of the country United Kingdom The modem is intended for direct connection to the analogue Public Switched Telecommunications Network and is approved for use within the United Kingdom with following features Modem facility Auto calling facility Auto answering facility DTMF signaling CAUTION The analogue telecommunications interface of the modem is intended to be connected to Telecommunication Network Voltage TNV circuits which may carry dangerous voltages If it is subsequently desired to open the host equipment for any reason
24. er Phone Line Connections DC Power Wiring Connect 10 30 VDC to the General Purpose Pocket Modem as shown in Figure 4 2 The modem can usually be powered from the same DC source as other devices in the enclosure All the screw terminals should be tightened to a maximum of 3 48 in lbs Telephone Cable Connect analog phone lines to the RJ 11 jacks as appropriate One RJ 11 jack is provided to connect directly to a telephone optional and the network second RJ 11 jack functions as the connection to the telephone Modem RS232 Port Pin Signa 1 DCD out 2 RD ou TD in 4 DTR in 5 i 6 oo gt To Telephone 10 30 VDC gt Sa Input gt 8 CTS out m gt To Line 9 RI out aE a O CD O TR O RD Ob INDUSTRIAL MODEM O Power o Made in USA Figure 4 2 General Purpose Pocket Modem Wiring Industrial Pocket Modem User Manual Page 9 Last Revision 3 Nov 04 Self Dialing Pocket Modem Power Phone Line I O connections DC Power Wiring Connect 10 30 VDC to the Self Dialing Pocket Modem as shown in Figure 4 3 The modem can usually be powered from the same source as other devices in the enclosure All the screw terminals should be tightened to a maximum of 3 48 i
25. etwork PSTN However due to differences between the individual PSTNs provided in different countries the approval does not of itself give an unconditional assurance of successful operation on every PSTN network termination point Australia All Models shall be connected to the Telecommunication Network through a line cord which meets the requirements of Australian Communications Authority ACA Technical Standard TS008 An Australian Approved Power Supply or AC Adapter shall be utilized with the product Industrial Pocket Modem User Manual Page 28 Last Revision 3 Nov 04 O Black Box Corporation The World s Source for Connectivity e f Y Technical Note 647 Upgrading the Initialization String in an Industrial Modem Abstract This technical note describes differences between the AT commands supported in current and previous revisions of the Industrial Self Dialing and RS 485 Modem This Technical Note is intended to aid existing customers in identifying and dealing with potential issues in converting to the newer revision products Note New modem wizard users those not specifying their own init or AT strings will find complete information in the product documentation and should have no need for the information in this document Equipment affected e Industrial Modem e Self Dialing Modem e RS 485 422 Modem Software used e Industrial Modem Wizard v2 03 or greater e Windows HyperTerminal Identifying the modem
26. gister accessed Sn x Write value x to S Register n Reports the value of S Register n Industrial Pocket Modem User Manual Page 19 Last Revision 3 Nov 04 A A x T Bn Cn Dn E Fn Hn In Ln Mn On Qn Sn n Set Result Code Format to terse or verbose Connect Message Control sets the format of the connect messages Extended results code Long space disconnect Perform Soft Reset and Restore stored user configuration profile 0 or 1 amp Cn RLSD DCD Option set DCD signal to indicate presence of carrier or forces DCD signal on at all times DTR Option set how modem interprets the DTR signal Restore factory configuration profile O or 1 Set Tone Dial Default T Vn Wn Xn Yn Zn amp Dn i amp Fn i i amp Gn Select guard tone amp Jn Telephone jack control amp Kn Set Flow Control amp Pn i amp Rn i i amp Sn E amp Mn E amp Tn Display current configuration stored user profiles and stored telephone numbers Display last connection statistics Store current active configuration in one of the two user profiles amp V amp V1 amp Wn i amp Xn Select synchronous clock source amp Yn Designate a default reset profile This profile will be active after a hard reset PE i PL 8 Kn Q 7 Break Control sets how the modem responds to a break signal Nn Sets the Operating Mode of the modem direct normal reliable or auto reliable Vn Single Line Connect Message Enable An Select
27. he top edge of the DIN rail Using a small flat head screwdriver pull down on the spring loaded tab on the bottom of the modem and push the modem back against the rail Reverse these steps to remove the modem See Figure 3 2 below DIN Rail ENS0022 _ Insert scr w driver and pull down to release spring lodded tab Swing modem against rail and release DIN Rail Mounting Figure 3 2 DIN Rail Mounting Industrial Pocket Modem User Manual Page 7 Last Revision 3 Nov 04 Section 4 Electrical Connections RS232 Connections All Modem Models Use a straight through or equivalent cable to connect the modem s RS232 port DB9 Male cable end to the RS232 port on a PC or other Data Communications Equipment DCE device DB9 Female cable end As shown in Figure 4 1 the Pocket Modem wiring is a straight through serial communications cable suitable for connecting a DTE device PC PLC or other device to a DCE device Industrial Pocket Modem Cable requirements for PLCs and other devices may be different Refer to the PLC or other device s documentation for cable pinouts Cable for Configuring Industral Pocket Modems Computer Modem R5 232 Port RS 232 Port Female DBS Male DBS 3 TD T 3 p DR ERA 5 GND GND 5 gy ISR Og gt RTS RTS 7 8 CTS CS vg 9 RI RI Figure 4 1 Pocket Modem Cable Wiring Industrial Pocket Modem User Manual Page 8 Last Revision 3 Nov 04 General Purpose Pocket Modem Pow
28. his register PSTN transmit attenuation level dBm Result code messages control jo ee 210 V 34 Symbol Rate 0 255 o wW S25 S26 S27 S28 S29 S30 S31 S36 S38 S39 S40 S41 S46 S48 S82 92 95 mele W ODh Industrial Pocket Modem User Manual Page 24 Last Revision 3 Nov 04 Section 8 Maintenance Information Troubleshooting Tips Default LED Indications All Pocket Modem models have the following LEDs Default Indication This LED will come ON once a phone line connection has been established and will remain on for as long as the connection is maintained Data Terminal Ready This LED should be ON at all times This LED will come ON whenever characters are received through the phone line This LED will come ON whenever the modem sends characters out the phone line Power LED Normal Indication All models This LED will be ON when power is applied to the modem Additional States Self Dialing only A Slow blink indicates an invalid configuration A Fast blink indicates that a self dial is in process or that the modem is in Configure Self Dialing Parameters mode Note The RD and TD LEDs indicate the flow of characters in and out of the phone line interface of the modem and are not directly connected to the RS232 port all models or RS485 RS422 port RS 485 RS 422 Pocket Modem Reconnecting Serial Cables It is important to cycle remove and then reapply DC power to a modem ea
29. ideal for DIALING UPON ALARM FROM ANY PLC This modem establishes a connection based upon a coil output from any PLC Once a connection has been established the PLC s system programming port is connected to the computer at the other end of the phone link and may be polled by that computer as if the computer had initiated the call When the modem connects to the central computer it identifies itself so the computer can run the appropriate I O driver and interrogate the PLC SENDING A MESSAGE BASED UPON A SWITCH CONTACT Locations that do not have PLCs or other intelligence can originate calls to alert you to low tank levels over temperature conditions or other alarms Simply connect the appropriate alarm contact to the modem s input The modem will dial the pre stored phone number and deliver a stored ID message to the computer at the receiving end Industrial Pocket Modem RS 485 RS 422 The RS 485 RS 422 Industrial Pocket Modem MD3452A has a RS485 RS422 port that can function in place of its RS232 port The RS485 RS422 port supports RS422 and RS485 full duplex and two wire RS485 half duplex communication to compatible devices The RS 485 RS 422 Pocket Modem is user configurable to communicate through either the RS232 port General Purpose mode or through the RS485 RS422 port Only one port may be used at a time SETUP WIZARD A modem setup utility is provided on the Industrial Pocket Modem CD to help you quickly configure any m
30. ighlight the manufacturers list Standard Modem Types From the models list select Standard 28800 bps Modem then click Next 4 Select the COM Port on your computer the modem will be connected to 5 To verify that the modem has been installed select Start gt Settings gt Control Panel and then double click the Phone and Modem Options icon Go to the Modems tab The modem should be listed as a Standard 28800 bps Modem connected to COM port you selected Once the Industrial Modem has been added to your Windows 95 98 NT or XP system it is ready for use If you are using a PLC or other device refer to the documentation for that device as necessary To Remove a Modem If it ever becomes necessary to re install the modem for any reason select Start gt Settings gt Control Panel and then double click the System icon Next click the Device Manager tab The list should display a Modems icon Double click the Modems icon Highlight the modem to be removed and then click the Remove button To reinstall the modem follow the installation steps as previously described Industrial Pocket Modem User Manual Page 16 Last Revision 3 Nov 04 Configuring Using the Setup Wizard Itis highly recommended that the Setup Wizard be used for modem configuration Simply check the appropriate boxes choose the appropriate communication settings from the drop down lists and load the configuration into the modem This utility does not re
31. irs of these resistors connected to an RS485 four wire network Refer to Figure 4 5 for recommended RS485 422 DIP switch settings Do not enable the RS485 422 bias resistors if there are bias resistors enabled on one of the other RS485 devices Bias resistors do not apply to RS422 wiring because the wires are always driven by the two RS422 devices The wires are not permitted to float Industrial Pocket Modem User Manual Page 13 Last Revision 3 Nov 04 2 Wire RS485 Device at Typical 2 Wire RS485 Bias the End of the Network RS485 422 MODEM os Lido and Termination Components V 1K A TO Bias 89 RS485 422 MODEM DIP RD 485 Switch Settings 89 12345678 Qs Termination Termination ON lo O 5 fo BE Rc of jo lo ou lO jo A jo jo RD 485 OFF o lo o i 79 KA T Bias 5O V GND GND 49 4 Wire RS485 Device at Typical 4 Wire RS485 Bias the End of the Network RS485 422 MODEM and Termination Components V KA Bias RD TD 89 150 Termination 0 1 uF RD TD 79 1K Bias RS485 422 MODEM DIP Switch Settings o 273 4 56 7 8 GND GND ON o JO 9 o o Jo 419 e 2 Jo fo ol fol fol fo orr lol lo Km Bias TD 69 RD Q Termination TD 59 RD sT 1K Bia
32. is disabled and the character format is maintained at the format most recently detected Example AT BDR 4 lt enter gt sets the DTE speed to 9600 and auto baud is disabled Rev 2 and Rev 3 modems The BDR command has changed to the VPR in the Rev 2 and Rev 3 modems The VPR command is implemented exactly the same way as the BDR command If you are using BDR in your modem simply replace BDR for VPR Valid commands are 0 Auto baud 1 2400 bps 2 4800 bps 3 7200 bps 4 9600 bps 8 19200 bps 16 38400 bps 24 57600 bps 48 115200 bps 96 230400 bps Example AT VPR 4 lt enter gt is equivalent the Rev 1 modem s AT BDR 4 lt enter gt to set the DTE speed to 9600 and disable automode Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 36 3 NOV 04 3 The S23 register sets the serial DTE parameters Rev 1 modem The S23 General bit mapped register could optional be used to set the serial port parameters baud rate parity and stop bits the Rev 1 modem The more common way however is to set the serial DTE parameters using AT lt enter gt or AT amp WO lt enter gt With the AT attention commands the modem will automatically detect the baud rate data bits parity and stop bits When just AT lt enter gt is sent the modem will use the detected parameters until power is cycled or until another AT
33. l Trans Basic Modem Parameters First Pho ID Phone Number 1 s5444 Second Ph Send Ignore DTR assume ON First Number Only ACK Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 37 3 NOV 04 Rev 3 modem Is implemented the same way as the Rev 1 and 2 modems with the exception of the number of characters allowed in the telephone number string Each telephone number dial string can contain up to 31 digits as opposed to 34 digits in the Rev 1 and Rev 2 This may cause a problem particularly in Self Dialing Modem applications where the Self Dialing Modem is configured to send a string to a beeper To get around this you can increase the time of the commas used in your AT command string using the S8 register the default value is 2 sec For example the string entered in the Self Dialing Parameters window may be 5554444 1 911 where the commas indicate the pauses necessary to wait for the operator prompt in your paging service If you change the S8 register to 4 sec ATS8 4 then you can cut the amount of commas in half 5554444 1 911 decreasing the amount characters necessary in your string Customer Support Information Service can be facilitated through our office at Black Box Corporation X The World s Source for Connectivity e To order or for technical support Call 724 746 5500 or Fax 724 746 0746
34. lt enter gt or AT amp WO lt enter gt is sent at different parameters When AT amp WoO lt enter gt is sent the modem will use the detected parameter until another AT lt enter gt or AT amp WO lt enter gt is sent at different parameters and will save these even after a power cycle Rev 2 and Rev 3 modem The Rev 2 and Rev 3 modems do not support the S23 register The serial port parameters are always set by sending AT lt enter gt or AT amp WO lt enter gt See Rev 1 modem above If your current AT command string has S23 in it for the purpose of setting the serial port parameters simply take it out and add an amp WO on the end of the string if necessary 4 The amp Zn command to store a telephone number in the modems flash memory Rev 1 and 2 modems This command is used by all modems to store up to four telephone numbers in flash memory Each telephone number dial string can contain up to 34 digits but the wizard allows only 32 digits The telephone number dial string can be recalled using the S n dial modifier ATDS 0 uses stored number 0 for the number to dial with This number is used by the Industrial Modem Wizard in the Modem Parameter window and the Self Dialing Parameters window for the Self Dialing Modem Blackbox Modem Wizard Blackbox Modem Wizard Self Dial Parameters Modem Parameters Select the appropriate Self Dial parameters for your modem Please specify the required modem parameters O Enable Self Dia
35. lted at the factory for 9600 baud To change this setting connect the modem to a PC Start the Setup Wizard and choose the baud rate that matches the PLC s baud rate Then choose the appropriate settings and write the configuration to the modem Exit the Setup Wizard and reconnect the modem to the PLC Be sure to cycle power to the modem Call the modem and verify that the PLC is responding to commands Industrial Pocket Modem User Manual Page 17 Last Revision 3 Nov 04 Limiting the Phone Line Connection Speed for Reliability Typically when a modem to modem connection is established the two modems negotiate and connect at the fastest possible phone line speed that is within the capability of both modems The quality of the phone line connection during the negotiation will be taken into account If both modems are of a modern design the phone line speed can be 33 6K bits per second or higher using data compression Note that this phone line speed is independent of the DTE serial port speed though some older modems require that the phone line speed and DTE speed be the same In practice the quality of any phone line changes continually and frequent data errors may occur The probability of errors usually increases as the phone line speed increases Therefore it is often desirable to restrict the phone line speed to a rate that will provide good performance and yield reliable data It is also commonplace to restrict the phone line speed to
36. n lbs Telephone Cable Connect analog phone lines to the RJ11 jacks as appropriate One RJ 11 jack is provided to connect directly to a telephone optional and the second RJ 11 jack functions as the connection to the telephone network PLC Self Dial I O Connections Connect a 10 30VDC signal to the From PLC trigger input terminal An OFF to ON transition of this signal starts the auto dialing sequence The modem will dial and remain connected while the signal is ON When the signal goes false the modem will terminate the connection or the call in progress The To PLC on line output terminal will go ON ON user supplied VDC input when a modem to modem connection has been established and the proper Acknowledge Message has been received ol a a Piai Te E MSS l a o tt EG E Any PLC SELF MALING MODEM EE 10 30 VDC from PLC To Phone Line To Other Modems or a Telephone Discrete Output from PLC Triggers Self dioling Discrete Input to PLO Indicotes o Connection Figure 4 3 Self Dialing Pocket Modem Wiring Industrial Pocket Modem User Manual Page 10 Last Revision 3 Nov 04 Pocket Modem RS 485 RS 422 Power Phone Line RS485 RS422 Connections DC Power Wiring Connect 10 52 VDC to the RS 485 RS 422 Pocket Modem as shown in Figure 4 4 The modem can usually be powered from the same source as other devices in the enclosure All the screw terminals should be tight
37. n the WinRPI or WinRPI95 driver software is installed in the PC H16 Enable video ready mode The website www TheFreedictionary com by Farlex defines Rockwell Interface Protocol RPI as a cutting edge feature of some modems allowing data compression and error correction e g ITU T V 42bis V 42 to be provided in software instead of hardware Usually an RPI modem comes with RPI aware software e g the low end RPI models of Supra come with the COMit which supports RPI providing MNP 2 4 5 7 V 42 and V 42bis RPI is not supported by many commercial packages nor by current releases of popular shareware communication programs Telix v3 22 and Telemate v4 12 ProComm Plus for Windows 2 0 will support RPI BLACK BOX does not provide RPI aware software and does not support the RPI feature in the INDUSTRIAL MODEM product line In fact most applications that use this command probably use it only to disable RPI AT HO To set the DTE parameters use AT lt enter gt or AT amp WO lt enter gt Using the AT attention commands the modem will automatically detect the baud rate data bits parity and stop bits of the AT command sent When just AT lt enter gt is sent the modem will use the detected parameters until power is cycled or until another AT lt enter gt or AT amp WO lt enter gt is sent at different parameters When AT amp WO lt enter gt is sent the modem will use the detected parameter until another AT lt enter gt or AT amp WO
38. odem In most applications no knowledge of modem AT commands or S register contents is necessary Pre configured profiles for common situations are provided for your convenience Industrial Pocket Modem User Manual Page 5 Last Revision 3 Nov 04 Section 2 Performance Specifications Max Data Rate 33 6 kbps V 34 Compatibility V 34 V 32bis V 32 V 22bis V 22A B V 23 V 21 Bell212A amp 103 Data Compression Error Correction Max Fax Modem Rate Fax Modem Compatibility Ringer Equivalent Line Jack Phone Jack except RS485 Max RS232 Rate R 232 Signal Support RS232 Connector DB9 female RS232 Command Set All standard AT and S register commands including Class 1 Class 2 Fax commands and Voice commands RS422 mode RS485 modes Signal rate RS485 RS422 distance CD Carrier detect The modem has detected a carrier on the phone line a remote modem has been detected TR Data Terminal Ready The PC or other device has established a connection to the modem and is ready RD Receive Data TD Transmit Data Power On when power is present Input Power 10 30 VDC General Purpose Self Dialing models 10 52 VDC RS 485 RS 422 models Input Current Rev 1 and Rev2 see 65mA O 24VDC and 26mA in Low Power mode of General Purpose typical section 1 97mA O 24VDC and 64mA in Low Power mode of Self Dialing typical 68mA O 24VDC and 28mA in Low Power mode of RS 485 RS 422 typical Input Current Rev 3 50mA O 24VDC and
39. odulation lt Min TX and RX rate gt lt Max TX and RX rate gt Possible Rates bps B103 Bell 103 300 B212 Bell 212 1200 Rx 75 Tx or 75 Rx 1200 Tx V21 V 21 300 V22 V 22 1200 V22B V 22 bis 2400 or 1200 V23C V 23 1200 V32 V 32 9600 or 4800 V32B V 32 bis 14400 12000 9600 7200 or 4800 V34 V 34 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 or 2400 Example AT MS V34 0 9600 9600 is equivalent to the Rev 1 s AT MS 11 0 9600 9600 and ATS37 9NO string The table below has a complete list of all the modem to modem speed settings in auto detect and fixed modes used for the Rev 2 modem These settings can be set through the Industrial Modem Wizard by simply clicking a radio button and selecting a speed or the string can by manually typed using Hyper Terminal See the last section in this document about using HyperTerminal Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 33 3 NOV 04 Auto Detect Commands listed below Fixed Speed Commands listed below Speed should all include an Settings should all include an Settings AT MS at the beginning AT MS at the beginning 300 V21 1 300 300 300 V21 0 300 300 1200 V22B 1 300 1200 1200 V22B 0 1200 1200 2400 V34 1 300 2400 2400 V34 0 2400 2400 4800 V34 1 300 4800 4800 V34 0 4800 4800 9600 V34 1
40. p C1 amp DO amp GO amp JO amp K3 amp Q5 amp R1 amp S0 amp TS amp X0 S00 001 S02 043 S06 002 S07 050 S08 002 S09 006 S10 014 S11 085 S12 050 S18 000 S36 007 S40 104 S41 195 S46 138 S95 000 STORED PROFILE 1 B1 El L1 M1 NO QO T V1 WO X4 YO amp C1 amp D2 amp G0 amp JO amp K3 amp Q5 amp RI amp SO amp TS amp X0 S00 000 S02 043 S06 002 S07 050 S08 002 S09 006 S10 014 S11 085 S12 050 S18 000 FACTORY DEFAULTS B1 E1 L1 M1 NO QOT V1 WO X4 YO amp C1 amp D2 amp GO amp JO amp K3 amp Q5 amp R1 amp SO amp TS amp X0 amp YO S00 000 S01 000 S02 043 S03 013 S04 010 S05 008 S06 002 S07 050 S08 002 S09 006 S10 014 S11 085 S12 050 S18 000 S25 005 S26 001 S36 007 S38 020 S46 138 S48 007 S95 000 Industrial Pocket Modem User Manual Page 18 Last Revision 3 Nov 04 Section 6 AT Command Summary All Pocket Modem models support the AT Fax Class 1 and Class 2 commands listed in this Section The modem contains a set of factory default settings which can always be restored by the user See the amp F command The modem also provides two user profiles profile 0 and profile 1 which hold settings as set and saved by the user See the amp W command The settings currently in use by the modem are generally referred to as the active configuration Notes Self Dialing Pocket Modem parameters and RS 485 RS 422 Pocket Modem port parameters can only be set using the Setup Wizard which is provided Refer to the on line help in the Setup Wiza
41. ponents for the Receive Data and Transmit Data signals Termination of these signals is enabled by setting DIP switches on the RS485 422 Termination components are often built into other RS485 RS422 devices and are typically enabled by setting a jumper or DIP switch on the appropriate device Here are some guidelines for the use of termination e Terminations should be enabled at both ends of an RS422 communication cable e Terminations should be enabled at both end stations on an RS485 network No more than two stations should be terminated on an RS485 network Bias Resistors RS485 networks only On an RS485 two wire network there should be one pair of bias resistors acting upon the transmit receive wires On an RS485 four wire network there should be two pairs of bias resistors one pair on the receive wires and one pair on the transmit wires Bias resistors force the receive or transmit receive wires to a known non floating state when none of the RS485 devices are transmitting data If bias resistors are not present some RS485 devices may experience communication errors due to noise on the floating wires The location of the bias resistors is not critical Typically they are installed at the master RS485 device Bias resistors are provided in the RS 485 RS 422 Pocket Modem and are enabled through DIP switch settings Refer to figure 4 6 There should be only one pair of these resistors connected to an RS485 two wire network and only two pa
42. quire user knowledge of AT commands and S registers Refer to the online help system in the Setup Wizard for instructions and application notes Note The Setup Wizard must be used to configure the parameters of the Self Dialing Pocket Modem and the RS485 RS422 port parameters of the RS 485 RS 422 Pocket Modem Blackbox Modem Wizard x Modem Parameters Please specify the required modem parameters E m Basic Modem Parameters Phone Number 1 Enable Auto Answer on fi Rings Ignore DTR assume ON Ignore Carrier Detect force ON Advanced Modem Parameters Disable Command Echo Disable Error Correction Flow Control Hardware RTS CTS Disable Data Compression Save Power After 5 Seconds m Modem to Modem Speed Fixed Speed B500 oO Auto detect Speed to 3600 User Defined AT String Restore Factory Modem Defaults ae E Setting the Modem s Serial Port Baud Rate for the PLC The modem has an automatic baud rate detection feature that lets the modem recognize commands through its serial port at any supported baud rate However if the modem is connected to a device that does not send commands or data unless spoken to such as most PLCs then the modem will pass information from the phone line to its serial port at the last auto detected baud rate This is typically the baud rate used by the Setup Wizard when configuring the modem The modem is defau
43. rd for more information The following tables only summarize the supported AT commands The valid parameters and default settings for each AT command are documented in the online help system of the Setup Wizard Commands marked with an asterisk have different characteristics depending on the revision of POCKET MODEM being used Refer to the online help system of the Modem Setup Wizard for the details of these differences A Re execute Last Command do not precede with AT command and do not follow with a carriage return Go off hook and Answer A Call Write value x to last selected register Report the value of last selected register Set data standard to CCITT Europe et al or Bell Mode U S Canada for connections at 300 or 1200 bps Dial originate a call typical usage ATDT5551212 to tone dial number ATDS n to dial nth stored number AT Cn E Echocommand to monitor when typed o O Fn Notavailable o O Hn Disconnect Hangup S O In_ Identification reports product code name ROM and firmware data etc In Speaker Volume not available o o ooo O Mn Speaker Control not available oo O Nn Automode Enable enabled allows connection at highest possible modem speed disabled fixes speed according to register 37 O Return To On line Data Mode Quiet Results Codes Control when enabled result codes are reported to the monitor Set Pulse Dial Default Establishes S Register n as the last re
44. re rev number General Purpose Modem Wizard Rev 1 Rev 2 Rev 3 Back Label 1 00 1 08 1 10 2 02 1 09 3 00 and above HyperTerminal ati3 V2 100 V34 2M DLS P2109 V90 CX81802 V34 Self Dialing Modem Wizard Rev 1 Rey 2 Rev 3 Back Label 1 00 1 04 1 06 1 08 1 04 1 05 2 00 HyperTerminal ati V2 100 V34 2M DLS P2109 V90 CX81802 V34 RS 485 RS 422 Modem Wizard Rev 1 Rev 2 Rev 3 Back Label 1 00 1 02 1 04 1 06 1 02 1 03 2 00 HyperTerminal ati3 V2 100 V34 2M DLS P2109 V90 CX81802 V34 Industrial Pocket Modem User Manual Page 4 Last Revision 3 Nov 04 Self Dialing Industrial Pocket Modem Self Dialing action is triggered by a switch closure or PLC output signal When the self dial input is energized the Self Dialing Pocket Modem dials a pre stored phone number and optionally identifies itself by way of a pre stored ASCII message Flexible features allow this modem to perform retries or even connect to an alternate number until it has verified that a connection has been established The call will terminate when either e The computer completes its polling and hangs up e The self dialing discrete input is turned off e A telephone line problem disrupts the call The Self Dialing feature enables field installed equipment to establish a telephone link based upon a simple switch closure This Self Dialing Pocket Modem adds dial upon alarm intelligence to any remote site This enhanced modem is
45. s Figure 4 6 Typical RS485 Network Bias and Termination Configuring a PC Modem to Communicate with a Pocket Modem RS 485 RS 422 in RS422 or RS485 Mode It may be necessary to change your PC s modem settings when communicating with a RS485 422 Pocket Modem running in RS422 or RS485 mode Here are the recommended settings o The PC modem RS 485 RS 422 and the modem to modem speed should be set to the same rate Industrial Pocket Modem User Manual Page 14 Last Revision 3 Nov 04 Section 5 Modem Configuration Configuration as an External Modem on a PC Any Industrial Pocket Modem can be connected directly to a PC The modem will need to be installed in Windows prior to use Here are instructions on how to install the modem in both Windows 95 98 and Windows NT Pocket Modem Installation in Windows 95 98 Plug and Play method recommended 1 2 3 4 With the PC off connect DC power and the telephone line to the modem Connect a communications cable STRAIGHT THROUGH or equivalent between the modem and the PC Turn on the PC During the boot up process Windows should detect the modem and display the New Hardware Found dialog box Make the selection Select from a list of alternative drivers The Select Device dialog will be displayed In the column labeled Manufacturers select Standard Modem Types In the column labeled Models select Standard 28800 bps Modem Click OK Win
46. s followed above Upon re booting the machine Windows may still find the modem as new hardware If this happens select Do not install a driver Windows will not prompt again Industrial Pocket Modem User Manual Page 15 Last Revision 3 Nov 04 Modem Installation in Windows NT 1 Select Start gt Settings gt Control Panel and then double click the Modems icon 2 The Install New Modem dialog box will appear Do not select the Don t detect my modem I will select it from a list Instead click Next and allow Windows to search the COM ports and detect the modem 3 Windows should find a modem called Standard Modem Click Next and Windows will complete installation of the Standard Modem Alternately click Change and select Standard Modem Types from the Manufacturers list and Standard 28800 bps Modem from the Models list 4 To verify that the modem has been installed select Start gt Settings gt Control Panel and then double click the Modems icon The modem should be listed as either a Standard Modem or a Standard 28800 bps Modem depending on the steps followed above Modem Installation in Windows XP 1 Select Start gt Settings gt Control Panel and then double click the Phone and Modems Options icon 2 Go to the Modems tab and click the Add button to install a new modem The Install New Modem wizard will appear Select the Don t detect my modem I will select it from a list 3 H
47. the 0 Industrial Pocket Modem User Manual Page 23 Last Revision 3 Nov 04 58 3A h N Delay to DTR CT108 off sets time modem ignores 0 255 s 0 01s 5 modem will operate in normal mode without activity on the phone or RS232 port before entering sleep m DTR signal before taking action specified by amp Dn Kag 0 01s General Bit Mapped Options for sync async control amp Mn amp Qn leased line control amp Ln clock select amp Xn Bell CCITT mode Bn General Bit Mapped Options indicates options for pulse dialing amp Pn MNP Link negotiation speed Hn 1 73 49 Flash Modifier Time sets the length of time the 0 255 10ms 70 modem will go on hook if the flash dial modifier is encountered in the dial string Inactivity timer sets the length of time the modem will 10s remain on line if no data is sent or received 2 834 835 Reserved S ool LAPM Failure Control used when register 48 128_ Delay before forced hang up time delay between the 0 255 S receipt of H command to disconnect and the actual disconnect operation 839 Flow control bit mapped options General bit mapped options 7 N o S Z8 A General bit mapped options E 42 S45 Reserved o 46 Enable Disable Data Compression s48 V 42 Negotiation Control HE LAPM Break Control S86 Call Failure Reason Code when the No Carrier result 0 255 code is issued the reason for the failure is written to t
48. the Automode command which determines the way the modem will attempt to negotiate the modem to modem speed NO Automode detection is disabled Sets the fixed modem to modem speed The modem will only try negotiate the phone line speed defined in S37 N1 Automode detection is enabled Sets the Auto Detect modem to modem speed The modem will first attempt to negotiate at the speed defined in S37 If the modem is unsuccessful in negotiating the connection the modem will progressively try lower and lower baud rates down to 300 baud Default Example ATS37 9N0 lt enter gt will set the modem to modem speed to be fixed at 9600 The Rev 1 modem also supports these parameters in another command originally developed as a reporting feature This command is the MS command and is defined as This extended format command selects the modulation optionally enables or disables automode and optionally specifies the lowest and highest connection rates two optional sub parameters Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 31 3 NOV 04 The command format is MS lt mod gt lt automode gt lt min rate gt lt max rate gt lt mod gt Modulation lt min rate gt lt max rate gt Possible Rates bps 0 V 21 300 1 V 22 1200 2 V 22 bis 2400 or 1200 3 V 23 1200 9 V 32 9600 or 4800 V 32 bis
49. the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a different circuit from which the receiver is connected e Consult an experienced radio TV technician for help Caution Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment To meet FCC requirements shielded cables and power cords are required to connect this device to a personal computer or other Class B device This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulation of the Canadian Department of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la classe B prescrites dans le R glement sur le brouillage radio lectrique publi par le minist re des Communications du Canada Regulatory Notices Any European Country All Models are in conformity with relevant regulatory standards following the provisions of European Council Directives 73 23 EEC Low Voltage Directive and 89 336 EEC amended by 92 31 EEC EMC Directive All Models have been approved in accordance with Council Decision 98 482 EC for pan European single terminal connection to the public switched telephone n
50. the telephone cord must be disconnected prior to effecting access to any internal parts which may carry telecommunication network voltages Customer Support Information Service can be facilitated through our office at ES Black Box Corporation X The World s Source for Connectivity e To order or for technical support Call 724 746 5500 or Fax 724 746 0746 e Technical support and fax orders 24 hours a day 7 days a week e Phone orders 24 hours 7A M Monday to midnight Friday Saturday 8 to 4 Eastern e Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 e Web site http www blackbox com E mail info blackbox com Industrial Pocket Modem User Manual Page 42 Last Revision 3 Nov 04
51. trial Pocket Modems communicate over analog phone lines only To Phone Line To Other Modems or q Telephone 0 30 VDC from PLC Discrete Output from PLC Triggers Self dioling Discrete Input to PLC Indicotes o Connection The Self Dialing Pocket Modem MD3451A has all the features of the General Purpose Pocket Modem MD3450A plus the ability to dial out based on an alarm contact closure or PLC discrete output Industrial Pocket Modem User Manual Page 3 Last Revision 3 Nov 04 Identifying the modem you have This section will show how to identify what revision of modem you have 1 The Industrial Modem Wizard will detect the version of the modem you have Open the wizard and detect the modem you are connected to by selecting the COM port your modem is connected to and clicking the red bar on the top of most configuration screens The firmware version of your modem is indicated as Rev 1 Rev 2 or Rev 3 otherwise the difference is seamless to the typical Wizard user 2 On the back of the modem there is a white sticker called the back label that indicates among other things the revision number Rev and modem models Please see the tables below to see how to interpret this number 3 You can also detect the modem type using HyperTerminal To query the firmware version enter the ati3 lt enter gt Please see the tables below for information on how to interpret this firmwa
52. ution may be particularly important in rural areas Caution Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or electrician as appropriate The LOAD NUMBER LN assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent overloading The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the load numbers of all the devices does not exceed 100 Industrial Pocket Modem User Manual Page 27 Last Revision 3 Nov 04 Federal Communications Commission And Canadian Department of Communications Radio Frequency Interference Statement Class B Digital Device This equipment has been tested and found to comply with the limits for a Class B computing device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation However there is no guarantee that interference will not occur in a particular installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio or telephone reception which can be determined by turning the equipment on and off The user is encouraged to try and correct the interference by one of
53. you have This section will show how to identify what revision of modem you have 1 The Industrial Modem Wizard will also detect the version of the modem you have Open the wizard and detect the modem you are connected to by selecting the COM port your modem is connected to and clicking the red bar on the top of most configuration screens The firmware version of your modem is indicated as Rev 1 Rev 2 or Rev 3 otherwise the difference is seamless to the typical Wizard user See Appendix A 2 On the back of the modem there is a white sticker called the back label that indicates among other things the revision number Rev and modem models Please see the tables below to see how to interpret this number Black Box 1000 Park Drive Lawrence PA 15055 USA 1 724 746 5500 FAX 1 724 746 0746 info blackbox com BLACK BOX APPLICATION NOTE647 DOC PAGE 29 3 NOV 04 3 You can also detect the modem type using HyperTerminal Please see the last section of this technical note for pointers on how to configure Hyper Terminal to send AT commands to modem To query the firmware version enter the ati3 lt enter gt Please see the tables below for information on how to interpret this firmware rev number General Purpose Modem Wizard Rev 1 Rev 2 Rev 3 Back Label 1 00 1 08 1 10 2 02 1 09 3 00 and above HyperTerminal ati3 V2 100 V34 2M DLS P2109 V90 CX81802 V34 Self Dialing Modem Wizard Rev 1 Rev 2 Rev 3 Back
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