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Metasys N2 Technical Manual

Dialer module (ndm)
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© 1995 Johnson Controls, Inc.
Code No. LIT-6363065
N2 Dialer Module (NDM)
*Indicates those sections where changes have occurred since the last printing.
Application Specific Controllers Technical Manual 636.3
N2 Dialer Module Section
Technical Bulletin
Issue Date 0995
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  • Page 1: Table Of Contents

    • Devices Supported • Supported Modems • Modem Setup • Operation • Local Operation • Remote Operation • Configuring the N2 Dialer Module • Local Dialer Communication Parameters • Remote Dialer Communication Parameters • Planning Considerations Installation Procedures • Tools Needed •...
  • Page 2 • Local NDM--Software Point Mapping • Remote NDM--Software Point Mapping • Reportable Changes-of-State (COS) • Reportable Analog Alarm Conditions • HVAC PRO for Windows Point Definition *Indicates those sections where changes have occurred since the last printing. 2 N2 Dialer Module—N2 Dialer Module (NDM)
  • Page 3 Appendix C: Using Metasys CS Objects with an NDM • Introduction • Design Considerations • NDM Hardware Definition • Overview of Local NDM Points • Mapping Local NDM Points to the Multistate Attributes of a CS Object • Remote NDM-- Software Point Mapping •...
  • Page 4 4 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 5: Introduction

    Introduction The N2 Dialer Module (NDM) links controllers and point interfaces to a Facility Theory of Management System (FMS). Using the N2 Communications Bus, two standard Hayes® Operation compatible modems, a public telephone line, and two NDMs, a link can be made between a facility management system and controllers located in a remote facility.

  • Page 6: Definition Of Terms *6

    Hayes Compatible Modem: Any modem that uses the industry standard Hayes protocol to set up, dial out, and hang up. Idle Time Out: The amount of time a remote NDM waits to see N2 Bus traffic after connection has been made to an “active” phone number. Upon timeout, the NDM hangs up and continues the dial-in process.
  • Page 7 Retry Count: The number of times the NDM attempts to dial out before aborting due to unsuccessful dial out attempts. If set to zero, the NDM dials until a connection is established. N2 Dialer Module—N2 Dialer Module (NDM) 7...
  • Page 8 8 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 9: Engineering

    You may also use a larger UPM to contain other optional equipment you may need. UPM1 You can use the N2 Dialer Module with either the Metasys® Network or Metasys Devices Companion™ as the facility management system. Remote devices supported by the NDM...
  • Page 10 When the remote NDM comes online (e.g., after reset or power up), it dials the passive printer to report its online status and the online status of connected N2 devices. If a remote device has an alarm, the NDM will immediately dial in again to report the alarm condition.
  • Page 11 When the remote NDM detects an alarm or offline/online transition in a remote N2 device, it calls a modem connected to a serial printer. When connection is established, a printout records the following: • remote site name and N2 address of remote NDM dialing in •...
  • Page 12 N 2 D ialer R emote N 2 B us N 2 Devices V A V p rin te U N T A H U Figure 3: Passive Printer Application with Remote Controllers 12 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 13: Supported Modems *13

    The U.S. Robotics Sportster 14,400 is also qualified for use, but requires the special modem setup noted below. Refer to the N2 Dial Application document in the HVAC PRO for Windows User’s Manual, FAN 637.5, on how to program setup strings. Other brands of Hayes compatible modems may experience problems if they are not fully Hayes compatible.
  • Page 14 When the local modem is forced to asynchronous mode, both modems communicate asynchronously, without modem error control, allowing faster modem turnaround and better N2 performance. The facility management system provides the required error correction. Exclude the &Q0 parameter from the remote NDM. If this parameter is in the remote NDM’s setup string and the remote NDM dials a printer’s modem, nothing will be...
  • Page 15 AT command strings listed above are supported. Note: The Modem Setup Utility sets the following signals high: Modem Ready (MR), High Speed (HS), and Auto Answer (AA). The printer must set Terminal Ready (TR) to high. N2 Dialer Module—N2 Dialer Module (NDM) 15...

  • Page 16: Operation

    The NDM can be configured as a remote or local device and its function varies based on its configuration. When configured as a local, the NDM is connected to the N2 Bus which directly interfaces to the facility management system. It accepts commands from the facility management system and initiates a dial out to the remote facility through a modem for point monitoring and command.
  • Page 17 Dialing Connected Retry Failed Table 3: Disconnect Delay Value Description 1-255 minutes Default number of minutes to wait before Default 10 minutes automatically disconnecting a call-- user defined in HVAC PRO for Windows. N2 Dialer Module—N2 Dialer Module (NDM) 17...
  • Page 18 The disconnect delay is defaulted to ten minutes in HVAC PRO for Windows. Adjusting the default may be necessary to assure that all the remote N2 devices come on line and can report any alarms in the event of a dial in from the remote site. If the disconnect delay time is set too low, the connection will be made, but there may not be time for the FMS to poll all the remote devices before the connection is broken.

  • Page 19: Remote Operation *19

    • the disconnect timer expires and causes disconnection. An NDM configured as a remote and connected to the remote N2 Bus performs a dual Remote function. If the modem connection is not established, it polls the remote N2 Bus for...
  • Page 20 If Retries is set to zero, it dials until a connection is established. After every power up or reset, the remote NDM initiates a dial- in sequence to verify the system operation. 20 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 21: Configuring The N2 Dialer Module

    (for example, a printer), the remote dialer sends its remote site Established name and N2 address, the N2 address of the alarm device, the N2 addresses of all online devices, and then disconnects. This allows the receiver of the call to identify the remote site that dialed in and the online status of remote devices.
  • Page 22 • accepts commands from the facility management system to dial remote sites • accepts incoming phone calls and switches remote N2 onto local N2 Bus • automatically hangs up after disconnect delay times out unless overridden to stay connected 22 N2 Dialer Module—N2 Dialer Module (NDM)
  • Page 23 0=use disconnect delay control 1=4-hour delay 2=never hang up Dial command -1 to 50 -1=remote site dialed in 0=hang up 1-50 =remote site number to dial 0=idle Connection status 1=dialing 2=connected 3=retry 4=fail N2 Dialer Module—N2 Dialer Module (NDM) 23...

  • Page 24: Remote Dialer Communication Parameters

    N2 Bus connection Communication • Parameters detects an alarm condition on N2 Open devices on the remote N2 Bus • initiates dial connection to the facility management system N2 Bus • can be configured to dial a printer, print Remote Site Name, and hang-up •...

  • Page 25: Planning Considerations

    If the installation is in an area of the country that often experiences thunderstorms, and the N2 Bus is wired between the buildings, surge protection or optical fiber for the bus is recommended. Refer to Installing the Surge Protector in the N2 Communications Bus Technical Bulletin (Code No.
  • Page 26 26 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 27: Installation Procedures

    (provided with NDM) • N2 Bus cable The N2 Dialer Module can be used either mounted in an enclosure, or simply place it on a Mounting the desk or table top. Refer to Figure 5 for mounting the NDM and modem, with respective power supply adapters, in a single enclosure.

  • Page 28: Design

    UPM with Velcro® tape or 3M Mate-Lock tape. This method could be used with a Practical Peripherals and Design modem like the configuration shown in Figure 6. 28 N2 Dialer Module—N2 Dialer Module (NDM)
  • Page 29 N2 C able Phone Line Figure 7: Enclosure Mounting with UNT in UPM The N2 Dialer Module is designed for light industrial/equipment room operation. This is an environment with moderate temperature variations, wide non-condensing humidity variation, moderate vibration, and possible dust contamination.

  • Page 30: Wiring

    Figure 8: Connecting the NDM to the RS-232 Extender Cable or Modem N2 Bus Wire Terminate the N2 Bus to the 3-pin plug-in terminal block. This allows easy disconnection from the NDM without breaking the daisy chain connection to other devices on the bus. Termination Note: Shielded N2 cable is not required.
  • Page 31 If the NDM is the last device on the daisy chain, or if it is the only device on the N2 trunk with EOL resistor capability (even though it’s not at the end of the line), position the EOL switches to IN. In all other cases, position the EOL switches to OUT.
  • Page 32 N2 Address An 8-position DIP switch is used to select the N2 address. The switch allows for binary coding of addresses from 1-255. The DIP switch address is read-only on power-up or reset. Note: If the address is changed, you must cycle power on the NDM to place the new address in effect.

  • Page 33: Commissioning, Downloading, And Troubleshooting

    When power is first applied to the NDM, it begins Normal Startup mode. This mode is Startup entered any time the N2 address DIP switch is not set to zero. In Normal Startup mode the NDM tests for Internal and External RAM, ROM, EEPROM, and UART Internal Loopback.
  • Page 34 After the Copyright screen displays, click on File, then Open, and select a file previously configured for the NDM. If you have yet to create a configuration file, see the N2 Dial Application in the HVAC PRO for Windows User’s Manual, FAN 637.5.

  • Page 35: Local Ndm *35

    Set the address on the local NDM to match that defined in the network data base. Apply power to the NDM. Do not connect the modem or the N2 Bus connections at this time. Verify the power up sequence by noting the two diagnostic LEDs: Transmit and Receive on the NDM.
  • Page 36 Wait for the disconnect to occur before proceeding. Connect the remote NDM to the remote controllers using the N2 Bus. The remote NDM automatically starts polling the N2 Bus for controllers. Verify this polling by noting the flashing transmit and receive LEDs. Depending on how many controllers are online, the transmit LED may flash more than the receive.

  • Page 37: Local Dial-Out Test *37

    Test the dial-in process by either generating a critical binary or analog alarm, disconnecting a controller from the remote N2 Bus, or powering down a controller. Verify that the remote NDM and other remote devices come online while the disconnected controller does not.

  • Page 38: Downloading With Metasys *38

    Metasys provides the same download functions to the NDMs and the devices on the Downloading remote N2 Bus as it does to any device on a local N2 Bus. Once the NDM hardware has with Metasys been mapped into Metasys and the devices come online, they can be downloaded. In addition, HVAC PRO for Windows (Release 5.1 or later) can be used in conjunction with...

  • Page 39: Installation Checkout

    Downloading the To download the remote NDM or remote devices connected to it: Select N2 Dial from the Network Map Setup menu. This displays the N2 Dial Remote NDM and Summary. Remote N2 Highlight the remote site. Devices Select Dial from the Action menu and wait till connection is established. After the communication link is established between the local and remote NDM, and the remote devices come online, the devices can be downloaded.
  • Page 40 -N2 Device set to -Change N2 Address Address 0 -DX Controller not configured to -Configure DX Controller to report alarm report alarm Continued on next page . . . 40 N2 Dialer Module—N2 Dialer Module (NDM)
  • Page 41 Windows if device is connected to occasionally dials Local NDM but without defined in the FMS. Same point FMS system. Use FMS headend to was configured for alarms in configure alarms. reporting alarm HVAC PRO for Windows. N2 Dialer Module—N2 Dialer Module (NDM) 41...
  • Page 42 N2 trunks are trunk is connected to the connected to the correct port defined for the first port. N2 trunk. This can result in overlapping N2 addresses, which cause serious communication errors. 42 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 43: Specifications

    Agency Compliance FCC Part 15, Subpart B Class A EMC directive 89/336/EEC Repair Part AS-TBKIT-0 Replacement Kit of N2 and 24 VAC Connectors (5 each) (Order Separately) Accessories Hayes Smart Modem Optima 96 or Optima 144, or compatible modem (must be Hayes compatible and support V.32 communications at 9600 baud or greater)
  • Page 44 44 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 45: Appendix A: Supported Devices And Firmware Revisions

    Unsupported Devices D600 DCM140 The DX-9100 requires Metasys 7.0 or later, or Companion 6.0 or later. The TC-9100 (2.0 or later firmware) requires Metasys 7.0 or later, or Companion 6.02 or later. Available in European market only. If the XT-9100 is on an XT Bus connected to a DX-9100, the DX can be programmed to cause a dial in for alarm conditions in the XT-9100.
  • Page 46 46 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 47: Appendix B: Using Companion With An Ndm

    “remote” NDM resides at an offsite location that does not have a facility management system connected to it. Each local and remote NDM must have a unique N2 Bus address. The minimum requirements to provide an operating system are two NDMs (one remote and one local), a dedicated phone line, two 9600 baud Hayes Optima or 100% compatible modems, and remote devices.

  • Page 48: Ndm--Hardware Mapping

    Enter NDM next to the address of each of the NDMs in the system. Add any additional addresses on the remote N2 Bus the same way. Keep in mind that all devices on the remote N2 trunk, including the remote NDM, must also have a unique address.
  • Page 49 BD-68 should be mapped as a network point type BD, but as a Companion software point type AO to allow adjusting. For more information on adding points to the data base, see the Data Base Generation Guide6281270toc@metcomp.mvb in the Metasys Companion Technical Manual (FAN 628.1).
  • Page 50 For more information on configuring the NDM using HVAC PRO for Windows, see the N2 Dial Application in the HVAC PRO for Windows User’s Manual. A simple way of keeping track of which facility will be called when commanding ADI-65 in the local NDM to a specific value is to set up a group as follows.

  • Page 51: Remote Ndm--Software Point Mapping

    Enables dial in on alarm Disables dial in on alarm The remote NDM polls the remote N2 Bus devices for reportable alarm conditions. If Reportable one is noted, the remote NDM initiates the dial-in sequence through the local NDM to Changes-of- pass the alarm information on to the facility management system.

  • Page 52: Reportable Analog Alarm Conditions

    As stated above, the remote NDM polls the remote N2 Bus devices for reportable alarm Reportable conditions. As with the binary points, one main item enables an analog point in a remote Analog Alarm device to generate a reportable alarm.
  • Page 53 Table 17: N2 Dialer (NDM) Point Mapping to Companion Network Network Command Map to Description Range Point Point Allowed Companion Type Address Points: Connection 0 = idle Status 1 = dialing 2 = connected 3 = retry 4 = failed...
  • Page 54 After a dial in to default = 5 minutes an active device, the remote NDM hangs up if no communication is detected during the idle timeout. Local NDM only Remote NDM only Both local and remote NDMs 54 N2 Dialer Module—N2 Dialer Module (NDM)

  • Page 55: Reporting Analog Alarm

    “Local” and “remote” are the terms used when referring to the two configurations of NDMs. The local NDM resides on an N2 Bus that is connected to a Metasys NCM on the N1 LAN. The remote NDM resides at an offsite location and has controllers (e.g., AHU, DX-9100) connected to it via the N2 Bus.
  • Page 56 NDMs. Specifically, there may be conflict if both the CS object and the N2 Dial Summary are used to control the NDMs. For example, an operator may be attempting to initiate a dial to a remote NDM using the N2 Dial Summary at the Operator Workstation.
  • Page 57 Table 19: ADI-1 Connection Status Value Description Idle Dialing Connected Retry Failed N2 Dialer Module—N2 Dialer Module (NDM) 57...
  • Page 58 Here is an example of the MODEL.DDL file for mapping ADI-65 and ADI-66 to CS object multistate attributes: MODEL.DDL File CSMODEL "N2DIALER", "NDM" MSTITLE "DIAL / DISCONNECT CMD" CSMS "ADI65", N, Y, "DIAL CMD",\ "CALDIN", -1,\ "HANGUP", 0,\ 58 N2 Dialer Module—N2 Dialer Module (NDM)
  • Page 59 School-1B Elementary, etc. Commanding ADI-65 to a value of 0 will cause a disconnection. The table below shows how the ADI-65 point mapping in DDL corresponds to the remote site phone number definition in HVAC PRO for Windows. N2 Dialer Module—N2 Dialer Module (NDM) 59...
  • Page 60 For more information on configuring the NDM using HVAC PRO for Windows, see the N2 Dial Application in the HVAC PRO for Windows User’s Manual. Sample DDL File for ADI-1 If you want to also map point ADI-1, the connection status, as a multistate attribute, you will have to create another CS object.
  • Page 61 NDMs. Software Point It is not necessary to map any of the remote NDM data points into the Metasys data base. Mapping A few communication parameters may be mapped to allow for easy update without having to enter the commissioning mode of HVAC PRO for Windows, but it is only required that the remote NDM itself be mapped into the system as a hardware object.
  • Page 62 Metasys provides the same download functions to the NDMs and the devices on the Downloading remote N2 Bus as it does to any device on a local N2 Bus. Once the NDM hardware has been mapped into Metasys and the devices come online, they can be downloaded.
  • Page 63 (ADI-65) to 0 to hang up. Downloading to It is also possible to download local and remote NDMs and associated remote N2 devices through Metasys without HVAC PRO for Windows. First, dial out to the remote facility. NDMs and Then use the device focus window.
  • Page 64 Metasys, the alarm will never be acknowledged, thus causing the NDM to continuously dial in. If a local NDM on one N2 trunk is programmed to call a remote NDM that is defined to be on another trunk, serious communications problems will occur wherever the N2 addresses overlap on the two trunks.
  • Page 65 1 = no dial in on alarm COS Remote BD73 Idle Timeout - after a 1-255 dial in, the remote NDM will hang up if no N2 communication is detected for the duration of the idle timeout N2 Dialer Module—N2 Dialer Module (NDM) 65...
  • Page 66 Notes 66 N2 Dialer Module—N2 Dialer Module (NDM)
  • Page 67 Notes Controls Group FAN 636.3 507 E. Michigan Street Metasys Application Specific Controllers Technical Manual P.O. Box 423 Printed in U.S.A. Milwaukee, WI 53201 N2 Dialer Module—N2 Dialer Module (NDM) 67...

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