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Newport iServer Series Скачать руководство пользователя страница 14

2.4.2 Wiring RS485 Interface

RS485 interface uses a two-wire communication system (one for transmitting and one for
receiving) plus a common wire to connect to the shield of the cable. It is recommended
to use a shielded cable with one twisted pair.

Use of twisted pair and shield will significantly improve noise immunity.

Figure 2.5 shows multi-point, half-duplex RS485 interface connections for the iServer.

Figure 2.5 Multi-point, Half-Duplex RS485 Wiring

Value of the termination resistor is not critical and depends on the cable
impedance.

Table 2.4 shows RS485 half-duplex hookup between the iServer serial port and device
with RS485 communication interface.

Table 2.4

iServer

DEVICE WITH RS485

+Tx/+Rx (+TrReceive)

+Tx/+Rx (+TrReceive)

-Tx/-Rx (-Transmit/-Receive)

-Tx/-Rx (-Transmit/-Receive)

RTN (Common GND)

GND (Common GND)

10

DEVICE #1

DEVICE #29

DEVICE #31

DEVICE #30

DEVICE #2

iServer

120 Ohm

Termination resistor

120 Ohm

Termination resistor

GND

-Tx/-Rx

+Tx/+Rx

+Tx/+Rx

-Tx/-Rx

Twisted shielded pair

-Tx/-Rx

-Tx/-Rx

-Tx/-Rx

-Tx/-Rx

+Tx/+Rx

+Tx/+Rx

GND

GND

GND

GND

+Tx/+Rx

+Tx/+Rx

.........................

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Содержание iServer Series

Страница 1: ...http www newportUS com iServer NEWPORT Electronics Inc Ethernet Server Operator s Manual...

Страница 2: ...ppropriate device upon certification The information contained in this document is believed to be correct but NEWPORT Electronics Inc accepts no liability for any errors it contains and reserves the r...

Страница 3: ...twork Protocols 12 3 2 Ethernet MAC Address 12 3 3 IP Address 12 3 3 1 Default IP Address 13 3 4 Subnetting 13 3 5 Port Number 13 Part 4 Serial Interface Configuration 14 4 1 Communication Protocol 14...

Страница 4: ...6 Figure 2 4 Wiring iServer Serial Port and Device with RS232 port 9 Figure 2 5 Multi point Half Duplex RS485 Wiring 10 Figure 2 6 RJ45 Connector Pinout 11 Figure 2 7 10Base T Crossover Cable Wiring...

Страница 5: ...ides you with information that is important to successfully setup and use the Programmable Digital Meter CAUTION or WARNING Tells you about the risk of electrical shock CAUTION WARNING or IMPORTANT Te...

Страница 6: ...950 safety standard EMC Considerations Whenever EMC is an issue always use shielded cables Never run signal and power wires in the same conduit Use signal wire connections with twisted pair cables Ins...

Страница 7: ...l not honor damage claims unless all shipping material is saved for inspection After examining and removing the contents save the packing material and carton in the event reshipment is necessary Custo...

Страница 8: ...hernet network using the TCP IP protocol It contains an Ethernet Server and RS 232 485 422 interfaces The standard features include Use standard Web Browser TCP IP protocol or HTTPGET DOS program for...

Страница 9: ...ail refer to the Figure 2 1 To install unit onto DIN Rail a Tilt unit position adapter guide onto DIN Rail b Push unit towards DIN Rail and it will snap into place Removal of unit The adapter can rema...

Страница 10: ...2 2 Front Panel of DIN Rail Unit Figure 2 2 Front Panel View of the iServer DIN Rail Unit 6...

Страница 11: ...cates transmission from the Serial port ON Indicates that the reset button is momentarily pushed TX LED Yellow Flashing Indicates reception to the Serial port ON Indicates that the reset button is mom...

Страница 12: ...The RS485 standard multi point allows one or more devices multi dropped to be connected to the iServer using a two wire connection half duplex Rx Tx and Rx Tx Use of RS485 communications allows up to...

Страница 13: ...d Device with RS232 Port Table 2 3 shows the pin connection assignments between the iServer serial port and device with RS232 serial communication interface Table 2 3 iServer DEVICE WITH RS232 Tx Tran...

Страница 14: ...oint Half Duplex RS485 Wiring Value of the termination resistor is not critical and depends on the cable impedance Table 2 4 shows RS485 half duplex hookup between the iServer serial port and device w...

Страница 15: ...2 5 2 10Base T Crossover Wiring When connecting the iServer directly to the computer the transmit data pins of the computer should be wired to the receive data pins of the iServer and vice versa The...

Страница 16: ...ound on the label of your device and contains 6 bytes 12 characters of hexadecimal numbers XX XX XX XX XX XX hex For example 0A 0C 3D 0B 0A 0B You need to know this number to access the iServer to cha...

Страница 17: ...k into multiple smaller blocks of addresses After they are divided you can use your network more efficiently For more details about Subnetting see Appendix C Subnet Masks 3 5 Port Number All TCP conne...

Страница 18: ...Server and your device shown in Table 4 1 which shows the Command Prefix Letters Command Classes Table 4 1 Command Prefix Letters COMMAND PREFIX COMMAND CLASS MEANING AE Special read Communication par...

Страница 19: ...e Appendix D for binary hex ASCII chart two characters to the byte Square brackets indicating optional status enclose this string since some commands contain no data nn are the two ASCII characters fo...

Страница 20: ...ing 128 100 101 33 If you get the following response it means that this IP address is not taken Pinging 128 100 101 33 with 32 bytes of data Request timed out Request timed out Request timed out Reque...

Страница 21: ...a new IP address by pinging the new IP address C ping 128 100 101 33 If you got the following respond it means that your device now has the new IP address Pinging 128 100 101 33 with 32 bytes of data...

Страница 22: ...d software available on our website and CD Example to use the Httpget program 1 Create a directory C iServer Httpget 2 Copy httpget exe and readme_features doc files to this directory 3 Make sure that...

Страница 23: ...s Windows product The following ARP commands can be used to view cache entries arp a Use this command to view all ARP cache entries arp a plus IP address Use this command to view ARP cache entries ass...

Страница 24: ...e 5 1 below shows examples of arp commands and responses You computer has an IP address 128 100 101 118 The destination computer has an IP address 128 100 101 96 Figure 5 1 arp a Commands and Response...

Страница 25: ...owser Internet Explorer 5 0 or Netscape Navigator 6 0 2 From a File menu select Open or Open Web Location 3 Enter the Internet address IP address of your device on the network 4 The home page of iServ...

Страница 26: ...ead Devices Read variables from up to four different devices Read up to four variables from the same device Manually or automatically update readings from your devices Set time interval for Auto Updat...

Страница 27: ...er In order to proceed to the Device Setpoints submenu the user should enter the correct password for access level 1 operator level or access level 0 administrator level 5 4 2 Send Raw Command Send si...

Страница 28: ...or parameters can be modified 5 4 4 Serial Port Configuration Allows the user to adjust serial communications settings of the instrument When connecting your instrument to the iServer the communicati...

Страница 29: ...and modify All iServer menu items without any restrictions Trusted Host 2 Access Level 1 operator level allows certain groups and individual users to access and modify Read Devices and Device Setpoin...

Страница 30: ...pt for Read Device if user attempts to advance to the menu items they will be prompted to enter the password only once to open the menu items 5 4 7 Change ID Allows the user to access devices with dif...

Страница 31: ...m conditions can be monitored on a network isolated from the internet and forwarded to connections on the Internet The Mail Notifier utility operates under Windows 95 98 NT 4 0 and NT 2000 in conjunct...

Страница 32: ...It will open to the General tab 4 On the General tab there is the When starting Microsoft Exchange options 5 The profile name is specified under the Always use this profile option button 6 On the Mai...

Страница 33: ...32 interface Entering Reading command Normally set to X01 to obtain reading from the devices Defining the Alarm setup High Low High value or Low value Specifying Pause Interval It determines how many...

Страница 34: ...odd even none Data bit 7 8 bit Stop bit 1 bit Start bit 1 bit Multi point Address RS485 0 to 199 Flow Control No Flow control Screw terminals for RS232 485 422 interface Network Interface 10Base T por...

Страница 35: ...SET VALUES PRESET PARAMETERS FACTORY DEFAULTS NOTES Network Interface IP address 128 100 101 254 Serial Interface Communication Standard RS485 Transfer Speed 9600 bps Bad Parity accepted Parity odd Ti...

Страница 36: ...equency 0 15 80 MHz IEC 1000 4 6 conducted 10 V m Performance 80 AM 1 KHz Criteria A This instrument complies with the following EMC Emission Standards as tested per EN 50081 1 1992 Residential Commer...

Страница 37: ...ernet IP address Internet Protocol address is a 32 bit number that identifies each sender or receiver of information that is sent in packets across the Internet IP Netmask is a 32 bit pattern of bits...

Страница 38: ...pport approximately 216 65 536 computers per network The IP addresses range in binary from 10000000 00000000 xxxxxxxx xxxxxxxx to 10111111 11111111 xxxxxxxx xxxxxxxx The IP addresses range in decimal...

Страница 39: ...Mask Dotted Notation Mask Binary Mask Bits Class A 255 0 0 0 Default 0 255 192 0 0 2 255 224 0 0 3 255 240 0 0 4 255 248 0 0 5 255 252 0 0 6 255 254 0 0 7 255 255 0 0 8 255 255 128 0 9 255 255 192 0...

Страница 40: ...01010010 DC3 19 13 00010011 S 83 53 01010011 DC4 20 14 00010100 T 84 54 01010100 NAK 21 15 00010101 U 85 55 01010101 SYN 22 16 00010110 V 86 56 01010110 ETB 23 17 00010111 W 87 57 01010111 CAN 24 18...

Страница 41: ...11 Crtl Q Data Control 1 XON SOH 01 01 Crtl A Start of DC2 18 12 Crtl R Data Control 2 Header STX 02 02 Crtl B Start of Text DC3 19 13 Crtl S Data Control 3 XOFF ETX 03 03 Crtl C End of Text DC4 20 1...

Страница 42: ...NOTES 38...

Страница 43: ...erwise shall not exceed the purchase price of the component upon which liability is based In no event shall NEWPORT be liable for consequential incidental or special damages CONDITIONS Equipment sold...

Страница 44: ...k co uk e mail sales newportuk co uk Newport Electronics B V Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 20 3472121 FAX 31 20 6434643 Toll Free 0800 0993344 http www newport nl e mail sales...

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