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18

System

Configuration

Section 3: SYSTEM CONFIGURATION

DIP SWITCH SETTINGS

A four-position DIP switch is provided, but no user
configuration via DIP switches is necessary at this time.

SERVICE TERMINAL

Refer to User Connections in Section 2 for instructions to
physically connect to the serial port. By default, the service
terminal communication parameters are:

9600 bps

No parity

8 data bits

1 stop bit

After connecting to the OpenComms NIC card,
press the space bar or <enter> key to activate
the service terminal session. If no response is
apparent and you have verified connections,
cycle power on the OpenComms NIC and the
service terminal sessions should appear
automatically.

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Содержание OpenComms

Страница 1: ...1 LIEBERT MONITORING GROUP INSTALLATION USER MANUAL Network Interface Card OpenComms...

Страница 2: ......

Страница 3: ...us with any comments you have about this manual or product in general We encourage you to comment and would appreciate your assistance in improving Liebert products Liebert Monitoring Group Applicatio...

Страница 4: ...20 2 Network Interface Menu 20 3 SNMP Communications Menu 21 4 Web Server 21 5 Firmware Update Menu 22 6 Factory Settings Menu 22 7 Auxiliary Communications 22 Section 4 OPERATION 23 SNMP 23 Liebert...

Страница 5: ...0x02 33 Error Handling 33 Modbus Packet Formats 34 Read registers Function Code 0x03 0x04 36 Write single holding register Function Code 0x06 36 Section 6 NIC Setup and Testing 37 Jumper Placements 37...

Страница 6: ...Ethernet Internet Web Browser OpenComms NIC Network Management System Building Management System Modbus EIA 485 Figure 1 Typical Installation...

Страница 7: ...monitoring system using a standard well defined multi drop protocol The OpenComms family of interface cards communicates with external systems via the following industry standard open protocols Modbu...

Страница 8: ...04 F Storage Ambient Temperature 20 C to 60 C 4 F to 140 F Relative Humidity 10 to 90 RH Non condensing Dimensions Net 178mm x 102mm x 38mm 0 2kg 7 0 x 4 0 x 1 5 0 4lbs As shipped 248mm x 178mm x 64mm...

Страница 9: ...plate The mounting plate then is attached to a flat metal surface in a low voltage section of the Liebert unit The self contained model packages the interface card inside a steel enclosure for mountin...

Страница 10: ...Installation 9 Figure 2 Deluxe System 3 Control Cavity Figure 3 Deluxe System 3 Chilled Water Control Cavity...

Страница 11: ...10 Installation Figure 4 ICS Control Cavity...

Страница 12: ...Installation 11 Figure 5 Challenger Installation Location The OpenComms Network card mounts to the L plate for Challenger units...

Страница 13: ...e Card p n 159084G1 is equipped with three connectors one at either end of the harness and one in the middle The harness taps power from the 24 VAC input to the control board of the environmental unit...

Страница 14: ...xisting wire located on P25 of the environmental controller cut off the red connector and reconnect the wires to TB2 of the interface card Ensure correct polarity 2 Connect one end of the wire harness...

Страница 15: ...ire external mounting Power Connection for External Enclosures Power for the OpenComms Network card should be sourced from the supplied wall plug transformer Use field supplied wiring to connect the o...

Страница 16: ...sition Power Connection for NPower After mounting the NIC card in the uppermost or lowermost option position per the instructions above route the wire harness from TB3 on the lower left of the NIC car...

Страница 17: ...16 Installation Figure 7 Npower UPS Installation...

Страница 18: ...eater TB2 The Modbus server uses RTU protocol and will allow for a maximum of 32 units on 4000ft of wire on a common line EIA 485 repeaters may be necessary in order to accommodate additional units or...

Страница 19: ...tructions to physically connect to the serial port By default the service terminal communication parameters are 9600 bps No parity 8 data bits 1 stop bit After connecting to the OpenComms NIC card pre...

Страница 20: ...entication Traps y n 3 3 Display Modify Communities 3 4 Display Modify Trap Communities 4 Web Server 4 1 Enable Web Server y n 4 2 Change User Name Password 4 2 1 Enter User Name prompt 4 2 2 Enter Ne...

Страница 21: ...ted decimal format The NetMask also known as subnet mask delineates devices on the same physical network segment versus devices that require the services of a network router for access to other networ...

Страница 22: ...enerated by the OpenComms Network Interface Card Typically the recipient is the management station of the NMS Specify the destination IP address and the community name for that host Up to 20 trap comm...

Страница 23: ...exit and reboot to enable the new configuration All parameters are stored in non volatile flash memory Alternately pressing q after escape will abort all changes Neither selection is case sensitive 7...

Страница 24: ...ndition occurs within the unit it is logged into the condition table within the appropriate MIB and a unique ID is assigned A description of the condition along with the value of the system up time wh...

Страница 25: ...This trap provides the Test ID of the test that has been performed the Test Spin Lock the Test Results Summary the Test Results Detail the Test Start Time and the Test Elapsed Time The Trap Alarm Ent...

Страница 26: ...t Transfer Protocol The data is shown in an intuitive graphical format akin to the unit s front bezel controls Currently the following browsers have been tested and are supported Microsoft Internet Ex...

Страница 27: ...the interface card press and hold for 3 seconds before to releasing to initiate hardware reset DIAGNOSTICS A number of LEDs are provided on the interface card to provide information for diagnostic pu...

Страница 28: ...NIC Setup and Testing 27 DS13 IGM Port Transmit DS14 19 Not used Figure 8 LED Locations...

Страница 29: ...the query and response cycles between master and slave devices The OpenComms NIC module is configured to act as a slave device on a common network The common network is a multi drop or daisy chain co...

Страница 30: ...ails The OpenComms NIC supports multi drop connection over RS485 On the OpenComms NIC a client should connect to the OpenComms NIC as a multi drop connection via the RS485 Repeater port TB2 Pin1 as mi...

Страница 31: ...TU Master EIA 485 9600 N 8 1 Figure 9 Typical Maximum Installation The recommended cable characteristics are Normal Environments 18 22 gauge twisted pair stranded non shielded Typical type is Belden 8...

Страница 32: ...exceeded if measures are taken to drive or boost the EIA 485 communication line Two wire EIA485 repeaters are available through the Liebert Corpration SiteScan s REPOPT will work sufficiently for this...

Страница 33: ...16 bit message unit In principle a message in a holding register is write readable but holding registers can be used by read only data as well Holding registers are mapped into 40001 49999 logic addre...

Страница 34: ...the first coil and the number of consecutive coils in a single query Coil status can be read by function code 0x01 Function code 0x05 set or clear a single coil and function code 0x0F set or clear mul...

Страница 35: ...ot response to the client within the time limit required by Modbus specification Modbus Packet Formats Each Modbus packet consists of the following fields Device Address Function Code Data Field s Err...

Страница 36: ...g Registers and Function Code 6 Preset Single Register Data Field s The data field varies in length depending on whether the message is a request or a response to a packet This field typically contain...

Страница 37: ...Addres s Function Code 0x3 0x4 Byte Count Data from registers 16 bit CRC 1 byte 1 byte 1 bytes 2 m bytes Byte Count 2 bytes WRITE SINGLE HOLDING REGISTER FUNCTION CODE 0X06 Query for writing a single...

Страница 38: ...ol used to test the network At the command prompt type ping address of card Ping will respond that it received a reply from the card if the card is functioning properly on the network If the card is n...

Страница 39: ...l check link light DS9 DS9 should be illuminated within approximately 0 5 seconds of application of power If DS9 is not illuminated and no other LED s are on verify that power has been applied to the...

Страница 40: ...transmitting to the connected device If neither of the link lights is blinking check the connection between TB1 and P3 TB1 is used to interface to the Environmental units and to some UPS s P3 is used...

Страница 41: ...40 NIC Setup and Testing Also verify that the proper slave ID has be set in service terminal Refer to Section 3 for initiating a service terminal session...

Страница 42: ...ete range of support and protection systems for sensitive electronics Environmental systems precision air conditioning from 1 5 to 60 tons Power conditioning and UPS with power ranges from 250 VA to m...

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