Data-Linc Group DLM4000 Operation & User’s Manual

Text of Data-Linc Group DLM4000 User Guide:

• 6 DLM4000 User Guide PN 161-09997-003A Feb 2005 Communications Description Communication with the DLM4000 is possible in a multipoint configuration, but only through dial-up configuration. Per diagram 1, it is possible to setup a dial-up polling operation. The link is a full-duplex link, which can be set up to 19200 bps. Leased line mode is another option that can be used when d

• Data-Linc Group DLM4000, 14 DLM4000 User Guide PN 161-09997-003A Feb 2005 S=n: Instructs the modem to dial a stored number previously saved with the &Z command. For example, ATDTS=2. This would dial a number stored in memory location 2. Sr?: Displays the contents of a particular S register. For example, ATS8?. This would display the value stored in register S8. Sr=n: Changes the value in a particular register. For example, ATS8=1. This could change the value in register S8 to 1. U3=n: Sets the transmit level in the modem from 0 to a –15dB. To write this register value the string must end with &W254. Note: that a sett

• Data-Linc Group DLM4000, 19 DLM4000 User Guide PN 161-09997-003A Feb 2005 Technical Specifications sdradnatSnoitacinummoCataD A212lleB,301lleB,12.V,32.V,22.V,sib22.V,23.V,sib23.VTTICC noitcerroCrorrE&noisserpmoCataD 5-2ssalCPNM,24.V,sib24.VTTIC locotorP )tamrofdrowtib01(suonorhcnysA deepSnoitcennoC deesserpmocnuspb00291otpU ytivitisneSreveiceR mBd34- leveLtimsnarT mBd51-ot0 reffuBdnammoC sretcarahC04 yromeMelitaloB-noNnitliuB seliforpnoitarugifnocderots2 seliforptluafedyrotcaf2 setyb001folatotanihcaesretcarahc63htiwsrebmunenohpeletderots01 ecafretnI232-SR noitcennocelameF52

• 16 DLM4000 User Guide PN 161-09997-003A Feb 2005 \Tn: Inactivity timer. Determines how many minutes the modem hangs up in, if no data is sent or received during a normal or reliable link. These link types must be used for this option to work. Range: 0 to 255 Unit: 1 Min. Default: 0 %Bn: Sets the maximum port baud rate. n= 300, 1200, 2400, 4800, 7200, 9600, 19200

• Data-Linc Group DLM4000, 15 DLM4000 User Guide PN 161-09997-003A Feb 2005 &Fn: Restore modem Active Configuration Profile to factory default settings where: &F0: Restore FDP0 (error detection and data compression) &F1: Restore FDP1 (no error detection and data compression) &L: Leased or dial-up line selection. &L0: Sets the modem for dial-up line operation. &L1: Sets the modem for leased-line operation dedicated between two destinations. &R: Determines how the DLM4000 will react to CTS/RTS signals. &R0: CTS tracks the condition of RTS. &R1: RTS is ignored and the CTS is forced on. &V: Displays config

• Data-Linc Group DLM4000, 25 DLM4000 User Guide PN 161-09997-003A Feb 2005 Appendix C AADB (Auto Answer Dial-Back) When Installed The DLM4000-AA Dial-Up Modem is capable of dialing a stored telephone number when a logic high signal is sent to a terminal block connection at the rear of the modem. The modem will keep dialing until one of the following occurs: 1. A connection is made. 2. The Logic Flag is cleared(returned to logic low). 3. A second Logic High is presented at the override terminal. The Auto-Alarm dial out function will not interrupt a call in progress and will not dial out if data is sent to RS232 port. To activate the dial-up feature when carrier is lost, a voltage of 12 VDC

• Data-Linc Group DLM4000, 18 DLM4000 User Guide PN 161-09997-003A Feb 2005 Configuring the Modem The modem requires the use of AT commands to enable dialing when power is applied. The following are the required commands. &A: Activates a designated location in memory where the phone number to be dialed is stored. String: &An Range: n=000 – 009 To activate location one in memory, the convention would be AT&A001&W. &Z: Stores a phone number to the designated active memory location set by &A. Note that both &Z and &A use the same number. String: &Zn Range: n=0 – 9 An example of storing a number would be AT&Z1=4258822206&

• Data-Linc Group DLM4000, 24 DLM4000 User Guide PN 161-09997-003A Feb 2005 Appendix B CCDF Module When Installed Description The CCDF module is designed to allow Data-Linc Group dial-up modems to make their connection when continuous RS232 data is flowing into its RS232 port. This device is designed for use with Data-Linc Group dial-up modems DLM4000/DL and DLM4100/DL. When a given modem is in dial-up mode it is also in command mode. Any data sent into the RS232 port while the modem is trying to dial will cause it to disconnect, thus the need for the CCDF. Installation I

• Data-Linc Group DLM4000, 21 DLM4000 User Guide PN 161-09997-003A Feb 2005 When communicating between two PLCs, I have a flashing T LED on the Master and a flashing R LED on the Remote. I never have a flashing R on the Master and T on the Remote. 1. The poll is getting to the remote PLC, but it is not answering back. Verify that the PLC addressing is correct. 2. If possible, try connecting the PLCs together with a null cable directly. If they do not work, most likely a PLC programming or processor issue exists. 3. Make sure that no handshaking is used in the PLC. 4. Check and verify that the word length is 10bits and the baud rates match. Verify this on both PLC location

• USER GUIDE I NDUSTRIAL D ATA C OMMUNICATIONS It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment. Dial-Up/Leased Line Modem DLM4000

• Data-Linc Group DLM4000, 12 DLM4000 User Guide PN 161-09997-003A Feb 2005 Configuration Setup To enable AT command configuration of the DLM4000, the modem must be in command mode, which is the default mode for dial-up operation. To enable command mode, remove the modem cover and place J2 in positions 1-2. Positions 2-3 is leased-line mode. See diagram 1. Diagram 3 Default Setup Strings Dial Up Mode (same from master or remote): AT &F L1 U3=0 &A99 &D0 &R1 \Q0 \N1 %C0 S0=1 &W &W254 Leased Line Mode (Master) AT &F L1 &D0 &L1 &R1 \Q0 \N1 %C0 %H1 S0=0 &W &W254 NOTE: All Modes: If 1200 & 2400 Baud

• Data-Linc Group DLM4000, 20 DLM4000 User Guide PN 161-09997-003A Feb 2005 DLM4000 Troubleshooting When connecting modem to terminal emulation program, modem does not respond: 1. Ensure the modem is connected to the COM port that the terminal emulation program is using. 2. Check that the COM port is free and no other devices are using it such as an internal modem. 3. Make sure the cable connecting the modem to the PC is the correct cable. Refer to the cable requirements section of the manual. 4. Try re-starting the terminal emulation program. 5. Make sure the proper power supply is being used. The DLM4000 requires a 9 VAC power sup

• Data-Linc Group DLM4000, 11 DLM4000 User Guide PN 161-09997-003A Feb 2005 Type in an appropriate name for your connection. After you have typed a name, select OK. Another window is displayed requiring the entry of additional information about the configuration. In this next window, the entry of a phone number is ignored. At the bottom of the window is an option to “Connect using:” and there is an arrow. Select the arrow and more options will be displayed. Select the computer COM port that the DLM4000 is connected to. Now select OK. Another menu is displayed: 3. Transferring a Text File The above settings are standard for the DLM4000. The DLM4000 modems may have been setup for other data rates. Make sur

• Data-Linc Group DLM4000, 1 DLM4000 User Guide PN 161-09997-003A Feb 2005 Table of Contents Page Operation Instructions 3 Dia-Up Systems Example 5 Lesased Line System Example 5 LED Descriptions 6 Connection Points 7 Verifying Operation 8 Setting Up Equipment for Bench Test Verification 9 Setting Up and Using HyperTerminal for Testing 10 Command Descriptions 13 Registers 17 Technical Specifications 19 Troubleshooting 20 Technical Support 22 Product Warranty 22 Return Material Authorization 22 Contact Information 22 Appendix A Enclosure Dimensions 23 Appendix B CCDF Module 24

• Data-Linc Group DLM4000, 9 DLM4000 User Guide PN 161-09997-003A Feb 2005 Setting up the Equipment for Bench Test Verification DLM4000/DL Bench Test DLM4000/LL Bench Test After connecting the equipment in either of the above configurations, HyperTerminal must be launched. If the computer being used for this test does not have HyperTerminal, another terminal emulation program may be used. The following setup of HyperTerminal may be referenced if another program is being used. Follow these instructions step by step to achieve the proper configuration for bench testing. DLM4000 (425) 882-2206 DATA-LINC GROUP C T R DLM4000 (425) 882-2206 DATA-LINC GROUP C T R Master Station RS

• 17 DLM4000 User Guide PN 161-09997-003A Feb 2005 DLM4000 Registers Sn?: This will allow viewing of the register value. Here is an example of how to read register S7. ATS7?. Sn=: This will allow modification of the register value. Here is an example of how to change register S7. ATS7=130. S0: This register determines the number of rings before the modem will answer a call. When

• Data-Linc Group DLM4000, 13 DLM4000 User Guide PN 161-09997-003A Feb 2005 DLM4000 Command Descriptions AT: The attention command clears the command buffer must precede all command lines except A/ and +++. A/: This command re-executes the last command in the command buffer. +++: This is the escape sequence to take the modem from data mode to command mode. An: If n is not specified, answer incoming ring immediately. If n is specified, auto-answer after n rings where n is 1 to 255 B: The B command defines the communications protocol as follows. B0: Selects CCITT protocol, which is used in Europe and most countr

• Data-Linc Group DLM4000, 7 DLM4000 User Guide PN 161-09997-003A Feb 2005 DLM4000 Connection Points (PWR) The DLM4000 utilizes a toggle switch for powering the modem on and off. (9VAC) The power connection is made with a barrel connector, which comes on the supplied power supply. (RS232) The connection for the RS232 port on the modem is a DB25 female connection. Keep in mind that this device is considered a DCE. (PHONE OUT) For most applications a phone is not required. Data-Linc Group supplies the modem with an RJ11 plug in this jack. This may be removed if connection of a phone to the modem is required. (PHONE IN) Connection of the mode

• Data-Linc Group DLM4000, 5 DLM4000 User Guide PN 161-09997-003A Feb 2005 DLM4000 Communications The DLM4000 operates with many asynchronous protocols, some of which are listed below. The DLM4000 also provides different options for connecting PLC’s and other equipment. Examples are provided on the following pages. Dial-up System Example Diagram 1 DLM4000 multipoint full duplex system using a PC master and PLC remotes. The system may involve dial-up polling or periodic retrieval of data from remote locations. Leased Line System Example Diagram 2 Leased or dedicated wire application. Multipoint operation is not an option. Only a point-to-point link is possible in Leas

• Data-Linc Group DLM4000, 4 DLM4000 User Guide PN 161-09997-003A Feb 2005 Connecting the DLM4000 The DLM4000 provides an RS232 port for the connection to other devices. Below is a diagram of the serial port configuration. It is important to use the proper cable when connecting equipment to the DLM4000. It is recommended that only Data-Linc Group cables be used to ensure optimal performance. Commercial serial cables will not always provide proper configuration. Should you require a cable(s), contact Data-Linc Group at (425) 882-2206 or email [email protected]. Pin

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