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VT-MODEM
Industrial Modems
Installation & Maintenance
Contents at a Glance:
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
This manual applies to the following products:
General purpose industrial modem (VT-MODEM-1##)
Self-dialing industrial modem (VT-MODEM-2##)
RS485 industrial modem (VT-MODEM-3##)
VT-MODEM User Manual
Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com
Overview
Performance Specifications
VT-MODEM Mounting
Electrical Connections
Modem Configuration
AT Command Summary
S-Register Summary
Maintenance Information
Product Support & Other Documents
Page 1 of 30
USER MANUAL
Last Revised: 17-Aug-09
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Table of Contents
Related Manuals for Sixnet VT-MODEM
Summary of Contents for Sixnet VT-MODEM
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Page 1: User Manual
General purpose industrial modem (VT-MODEM-1##) Self-dialing industrial modem (VT-MODEM-2##) RS485 industrial modem (VT-MODEM-3##) VT-MODEM User Manual Page 1 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com... - Page 2 (VT-MODEM-1), plus the ability to dial out based on an alarm contact or PLC discrete output. VT-MODEM User Manual Page 2 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
- Page 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 VT-MODEM User Manual Page 3 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
- Page 4 VT-MODEM-3 RS485 Port The VT-MODEM-3 Industrial Modem Plus has an RS422 / RS485 port that can function in place of its RS232 port. The RS422 / RS485 port supports RS422 and RS485 full duplex and two wire RS485 half duplex communication to compatible devices.
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Page 5: Performance Specifications
Output Characteristics Sourcing – switches supply power Max. Output Current 100 mA VT-MODEM User Manual Page 5 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com... - Page 6 VT-MODEM Mounting The VT-MODEM snaps onto standard DIN rail (DIN EN 50022) or is mounted to a flat panel using #6 or #8 screws. See Figure 3-1. The modem can be installed in any orientation, directly adjacent to other DIN rail components or in any convenient location within the enclosure.
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Page 7: Electrical Connections
Sixnet CD that came with your modem. Figure 4-1: VT-CABLE-MDM Wiring VT-MODEM User Manual Page 7 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com... - Page 8 DC Power Wiring Connect 10 - 30 VDC to the VT-MODEM-1 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.
- Page 9 DC Power Wiring Connect 10 - 30 VDC to the VT-MODEM-2 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 in-lbs.
- Page 10 DC Power Wiring Connect 10 - 52 VDC to the VT-MODEM-3 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 tightened to a maximum of 3.48 in-lbs.
- Page 11 Figure 4-5: Detailed RS422 / RS485 Wiring and DIP Switch Settings VT-MODEM User Manual Page 11 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
- Page 12 RS485 two wire network, and only two pairs of these resistors connected to an RS485 four wire network. Refer to Figure 4-5 for recommended VT-MODEM-3 DIP switch settings. Do not enable the VT-MODEM-3 bias resistors if there are bias resistors enabled on one of the other RS485 devices.
- Page 13 RS422 or RS485 mode. The PC modem, VT-MODEM-3 and the modem-to-modem speed should all be set to the same rate. VT-MODEM User Manual Page 13 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
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Page 14: Modem Configuration
Configuring a VT-MODEM as an External Modem on a PC: The VT-MODEM can be connected directly to a PC. The modem will need to be “installed” in Windows prior to use. Here are instructions to install the modem in both Windows 95, 98 and Windows NT. - Page 15 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 VT-MODEM modem has been added to your Windows 95, 98, NT or XP system, it is ready for use.
- Page 16 The VT-MODEM is defaulted at the factory for 9600-baud. To change this setting, connect the modem to a PC. Start the VT-MODEM 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.
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Page 17: Active Profile
The quality of the phone line connection (during the negotiation) will be taken into account. If both modems are of a modern design (such as the VT-MODEM), 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. -
Page 18: At Command Summary
VT-MODEM Setup Wizard. Commands marked with an asterisk (*) have different characteristics, depending on the revision of VT- MODEM being used. Refer to the online help system of the VT-MODEM Setup Wizard for the details of these differences. - Page 19 Identify compression method (ADPCM). #VLS Voice line select (ADPCM or PCM). VT-MODEM User Manual Page 19 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
- Page 20 *+FMM? Report model ID Report revision ID *+FMR? *+FLO Flow Control VT-MODEM User Manual Page 20 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
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Page 21: S Register Summary
Inactivity timer sets the length of time the modem will remain 0-255 VT-MODEM User Manual Page 21 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com... - Page 22 Result code messages control S210 V.34 Symbol Rate 0-255 13 (0Dh) VT-MODEM User Manual Page 22 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
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Page 23: Maintenance Information
“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 VT-MODEM, and are not directly connected to the RS232 port (all models) or RS422 / RS485 port (VT-MODEM-3). - Page 24 We also offer an extended 36-month warranty option for users with long-term requirements. Sixnet promises to continue to maintain each model of industrial modem we offer for sale for a minimum of five years, so you can design your system only once and be assured of continued supply and high-quality after-sale service.
- Page 25 Sixnet's liability shall not exceed the price of the individual units, which are the basis of the claim. In no event shall Sixnet be liable for any loss of profits, loss of use of facilities or equipment, or other indirect, incidental or consequential damages.
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Page 26: Service Information
Service Information We sincerely hope that you never experience a problem with any Sixnet product. If you do need service, call Sixnet at (518) 877-5173 and ask for Applications Engineering. A trained specialist will help you to quickly determine the source of the problem. Many problems are easily resolved with a single phone call. If it is necessary to return a unit to us, an RMA (Return Material Authorization) number will be given to you. -
Page 27: Additional Documents
FCC Requirements for Consumer Products VT-MODEM User Manual Page 27 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com... - Page 28 Northway Ten Professional Park PO Box 767 Ushers Road Clifton Park, NY 12065 518-877-5173 VT-MODEM User Manual Page 28 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
- Page 29 RINGER EQUIVALENCE NO.: CERTIFIED TO: SPECIFICATION CS03 ISSUE 8 NETWORK INTERFACE: VT-MODEM User Manual Page 29 of 30 Last Revised: 17-Aug-09 Sixnet Technology Park 331 Ushers Road Clifton Park, NY 12065 USA +1 (518) 877-5173 support@sixnet.com...
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Page 30: Regulatory Notices
Germany: Diese VT-MODEM-1(-2 and –3) EC als Endeinrichtung vorgesehen und muss an ein TAE mit F-Kodierung angeschlossen werden. (This VT-MODEM-1(-2 and –3) EC is a terminal equipment, which must be connected to the PSTN using an F-coded connector/plug.) IEC950:1991- The Industrial Modem shall be connected to Telecommunications Network through a line cord approved by the necessary authorities of the country.