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455U-D Radio Modem

User Manual

Page

26

©

Jan 2016

DCE HOST

DB9

MALE

MODEM

DB9

MALE

RD

TD

SG

RTS

CTS

DSR

DTR

DCD

RD

TD

SG

RTS

CTS

DSR

DTR

DCD

2

5

7

8

6

4

1

3

2

5

7

8

6

4

1

3

DCE HOST

MODEM

DB9

MALE

DB9

FEMALE

RD

TD

SG

RTS

CTS

DSR

DTR

DCD

RD

TD

SG

RTS

CTS

DSR

DTR

DCD

2

5

7

8

6

4

1

3

2

5

7

8

6

4

1

3

2.4

Serial Connections

2.4.1 RS232 Serial Port

The serial port is a 9 pin DB9 female and provides for
connection to a host device as well as a PC terminal for
configuration, field testing and for factory testing.
Communication is via standard RS232 signals. The 455U-D
is configured as DCE equipment with the pinout detailed
below. Hardware handshaking using the CTS/RTS lines is
provided. The CTS/RTS lines can be configured to reflect
the status of the local unit’s input buffer. The 455U-D
supports XON/XOFF flow control.

Example cable drawings for connection to a DTE host (a PC) or another DCE host (or modem)
is detailed below.

DB9 Connector Pinout

Pin

Name

Direction

Function

1

DCD

Out

Data carrier detect

–

- driven when link is established in Acknowledged mode
- driven when module is online in unacknowledged mode

2

RD

Out

Transmit Data from modem

– Serial Data Output

3

TD

In

Receive Data into modem

– Serial Data Input

4

DTR

In

Data Terminal Ready

- DTR can be configured to initiate low

power mode, or to force a link disconnection (“hang up” in
Acknowledged mode.

5

SG

Signal Ground

6

DSR

Out

Data Set Ready

- always high when unit is powered on.

7

RTS

In

Request to Send -

hardware flow control configurable

8

CTS

Out

Clear to send -

hardware flow control configurable

9

RI

Out

Ring indicator

- indicates another module is attempting to connect

in Acknowledged mode.

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Содержание 455U-D

Страница 1: ...ELPRO Technologies Pty Ltd 9 12 Billabong Street Stafford Q 4053 Australia Tel 61 7 3352 8600 Fax 61 7 3352 8677 Email Elpro Sales eaton com Web www eaton com wireless User Manual 455U D Radio Modem...

Страница 2: ...type accepted for operation by the FCC in accordance with Part90 of the FCC rules 47CFR Part 90 See the label on the unit for the specific FCC ID and any other certification designations Note This de...

Страница 3: ...and the antenna antenna cable and the module should be installed as recommended in the Installation Guide 2 To avoid accidents during maintenance or adjustment of remotely controlled equipment all equ...

Страница 4: ...1 6 ADDRESSING 17 1 6 1 Multiple Device Connectivity MDC 18 1 7 OPTIMUM PATH ROUTING 18 1 8 DUTY CYCLE LIMITING 19 1 9 WHAT OPERATING MODE TO USE 19 1 9 1 Unacknowledged or Acknowledged mode 19 1 9 2...

Страница 5: ...AND SERIAL CONFIGURATION 40 3 6 1 Radio Data Rate 40 3 6 2 Serial Port Settings 40 3 6 3 Other Settings 41 3 7 ACKNOWLEDGED MODE 42 3 7 1 Auto Dial Auto Connect Master 42 3 7 2 Auto Answer Auto Connec...

Страница 6: ...AL OPERATION 58 4 2 LED INDICATION DIAGNOSTICS CHART 59 4 3 OPERATING PROBLEMS 60 4 4 TEST FUNCTIONS 61 4 4 1 Bit Error Ratio Test BER 61 4 4 2 Other Radio Testing AT Tx 62 4 4 3 On line diagnostics 6...

Страница 7: ...connector which can be used only for configuration or access to diagnostics information the RS232 data port can also be used for configuration and diagnostics RS232 is an electrical standard format fo...

Страница 8: ...ls the maximum message length user configurable default 1020 bytes If more than 1020 bytes is input the 455U D unit will transmit the first 1020 bytes then the next 1020 bytes and so on until all of t...

Страница 9: ...e primary stops normal operation and the secondary becomes active The inactive unit is powered and operational however communications out of the unit via the radio transmitter and RS485 port is disabl...

Страница 10: ...This mode of operation is particularly suited to devices designed to operate over a multidrop network such as PLC systems designed for operation over a RS 485 network If error checking is not configu...

Страница 11: ...t data and send radio messages with data When a 455U D unit receives a radio message it will check the system address and destination address and also the error check optional If these are correct it...

Страница 12: ...on Module Serial data is received Serial LED flashes Listen to ensure channel is clear If clear transmit message Radio TX LED flashes Receive message Radio RX LED flashes Check system and destination...

Страница 13: ...f the input buffer becomes empty If the configured serial data rate is the same or more than the radio data rate then data is transmitted as soon as it enters the input buffer data streams from the in...

Страница 14: ...s the same as the radio rate or more than there is no delay There is an automatic protection if a certain time has elapsed and the number of starting bytes has not been input then the radio will start...

Страница 15: ...Hz be used unless the application requires the higher data rates 1 5 5 Radio Message The radio message includes the following A 40 msec leading sequence of alternating 1 s and 0 s provides the receivi...

Страница 16: ...transmit delay time and a receive delay time may also be configured These parameters may be used to fine tune and give priority to different 455U D units in a system After each message is transmitted...

Страница 17: ...clude repeater addresses Because both communications channels use the same radio channel activity on one port may impact communications on the other port by introducing delays in message transmission...

Страница 18: ...5 multi drop serial link it is suitable for unacknowledged mode The RS 485 port only operates in Unacknowledged mode It is possible for the RS 485 port to be operating at the same time as the RS 232 p...

Страница 19: ...tly Each message sent indicates within the message header whether it uses error checking or not so a single modem can receive messages with and without error checking without requiring changes to the...

Страница 20: ...ong or obstructions in the way then higher performance antennas or a higher mounting point for the antenna may rectify the problem Alternately use an intermediate 455U D Module as a repeater The foldo...

Страница 21: ...should be connected to the module via 50 ohm coaxial cable eg RG58 Cellfoil or RG213 terminated with a male SMA connector The higher the antenna is mounted the greater the transmission range will be...

Страница 22: ...nal surge suppression devices are recommended if lightning surge problems are experienced If the antenna is not already shielded from lightning strike by an adjacent earthed structure a lightning rod...

Страница 23: ...s should have vertical polarization and the common or central station should have a collinear non directional antenna Also note that Yagi antennas normally have a drain hole on the folded element the...

Страница 24: ...power requirements of the 455U D units at 12VDC is 110mA quiescent and 2A when transmitting 5 Watt or 450mA for 500mW B A Earth 24 12 DIO 15 30 VDC Power Supply DC Out 455U Optional Battery Fuse 5A _...

Страница 25: ...reflect the status of the local unit s input buffer The 455U D supports XON XOFF flow control Example cable drawings for connection to a DTE host a PC or another DCE host or modem is detailed below D...

Страница 26: ...shared only one of the units on the RS485 cable may send data at any one time Thus communication protocols based on the RS 485 standard require some type of arbitration RS485 is a balanced differenti...

Страница 27: ...ed to an indicator or alarm max 30VDC 500mA or to a relay to remotely operate equipment The output is controlled using the AT O command AT O0 turns off AT O1 turns on 2 5 2 Using the Discrete I O poin...

Страница 28: ...to use Modes are Unacknowledged or Acknowledged error checked or no error check These modes are discussed in Chapter 1 and in more detail in following sections The other configuration parameters usua...

Страница 29: ...5U stops its normal operations and is waiting to accept AT commands from the host device AT commands are a standard set of modem commands use to configure or control the modem s operations The 455U ca...

Страница 30: ...figuration of an existing module select Load new modem into system from the System screen 3 3 1 Reading and Configuring a module You will need a connection cable between the PC and the 455U D The cabl...

Страница 31: ...the DIP switch in the module end plate see section 3 10 of this manual If connecting to the RJ45 port the serial data rate is fixed at 9600 baud The character type is 8 data No parity 1 stop bit To re...

Страница 32: ...odem e g will allow manual typing of Hayes AT commands 3 3 5 Reset and Advanced mode The Tool bar also has a Reset button that will send a Reset command to the modem same as the ATZ Hayes command on t...

Страница 33: ...a remote modem first make a connection from the local 455U D unit to the other unit Right click on the unit in the left hand menu of the Configuration program in the diagram Unit 1 is the local modem...

Страница 34: ...ress allows the modules to be accessed over the radio using remote configuration and diagnostics 3 5 1 RS 485 Port The RS 485 port always operates in unacknowledged mode and starts up online If you ar...

Страница 35: ...Port The RS232 port can be configured for auto connect or single connect Auto connect means that the 455U D will start up online This will be indicated by the LINK LED going green Single connect means...

Страница 36: ...e chooses which remote module to configure by issuing a dial command ATD As soon as the Dial command is issued the modem will issue a Connect message and go on line This will be indicated by the LINK...

Страница 37: ...roadcast network check the section below on Optimum Path Routing If your communication uses Modbus DF1 or DNP3 protocols OPR may be a better way to implement your network You can set up a broadcast ne...

Страница 38: ...quence In this case Hops is set to 1 repeater after the first hop Note that the address path for return messages is 1 The second ring of repeaters units 21 and 22 need to be configured as above The Fo...

Страница 39: ...etween 600 and 187 500 baud If the serial rate is less than the radio data rate the 455U D will automatically set transmission delay parameters in registers S18 and S19 refer section 1 5 1 To disable...

Страница 40: ...and unencrypted messages Forced on RX causes the modem to transmit encrypted messages and only accept messages which are encrypted Note that the encryption keys must be set up in each modem to the sa...

Страница 41: ...er S14 The value in S14 is multiplied by four to get the maximum packet size Transmit and Receive Hold off delay times A transmit delay time and a receive delay time can be configured These parameters...

Страница 42: ...must have the same system address The repeater addresses are entered in order from the master that is the leftmost address is the first repeater after the master If you enter a Link Check Time then th...

Страница 43: ...onnect message to the destination address If the destination module responds then the link is connected and the unit goes online The DCD status is set LINK LED comes on DCD signal and DIO signal turn...

Страница 44: ...nge over during short term transient fault conditions the trigger condition must be present for a period of time before the change over occurs This period is configurable and can be entered via the Ch...

Страница 45: ...ndary detected 5 Inactive Primary 6 Inactive Secondary 3 8 1 Single Host Device If the 455U redundant pair are connected to a single host device they should be connected via RS485 both 455U units will...

Страница 46: ...their previous active in active state Redundant units should be connected to separate power supplies and must be connected to separate antennas and coaxial cables Although only one antenna will transm...

Страница 47: ...ry fails Flash 1 sec Red 1 sec Green Flash 1 sec On 1 sec Off Off Off Secondary No Power Primary is active Red Flash 2 sec Off sec On Green Flash 2 sec Off sec On Primary Fault Secondary is active Pri...

Страница 48: ...ontrol Primary AT O3 No Signal from Secondary No Signal from Secondary Forced Standby S33 5 Radio Fault or Low Battery Timeout S11 AT O5 Flash Red Green With DIO LED E455U D Dual Redundant Control Sec...

Страница 49: ...fault Always On Hardware fault on I O Circuit or module fault disconnect wire to determine which module is functional The following diagram shows the states of the dual redundant system and the relat...

Страница 50: ...panels In this situation the DTR signal from the host device is used to wake up the 455U D unit The 455U D unit will then operate normally until the DTR signal is reset by the host device In addition...

Страница 51: ...version 3 00 and later To use OPR select Host Protocol under the Operating Mode section of the configuration screen Modbus ASCII or RTU DF1 or DNP3 then press the OPR Paths button which will bring up...

Страница 52: ...ink needs a separate configuration Finally if you are setting up a large system and the remote radios have consecutive Protocol devices you can use the First and Last address range which will configur...

Страница 53: ...S19 for the RS232 port and in S21 for the RS485 port 3 11 Advanced Settings S Registers These are parameter registers settable by AT commands or the Configuration software to fine tune the operation...

Страница 54: ...ommands will automatically exit command mode Several commands can be run together for example ATB2 WO is the same as ATB2 and AT W and ATO Prior to Configuration Before configuring a module initially...

Страница 55: ...and a remote stations with a connected slave host device Address 36 This example uses Auto Online mode which routes all messages according to the path set with the Z0 command The path set with Z0 comm...

Страница 56: ...rom the repeaters don t clash with responses from the directly communicating device address 15 This command sets the repeater to 200 msec hold off Slave devices Site address 36 AT M0 Configure mode 0...

Страница 57: ...rt Activity Older version Hardware Orange flash RS 232 port receiving and transmitting simultaneously Red flash RS232 serial port transmitting data to host device Green flash RS232 serial port receivi...

Страница 58: ...power mode DTR control OK LED GREEN Continuously Normal Operation Radio TX LED ON Flashes briefly Radio transmitting Radio RX LED GREEN flashes Radio receiving data Radio RX LED RED flash Radio Receiv...

Страница 59: ...m bench test the complete system with the 455U D units near each other This test eliminates the radio path or interference as a factor and ensures that the system will operate in the way that you want...

Страница 60: ...ld have communications paused during the BER test Right click on the connection in the left hand menu and select BER The local modem will repeatedly send pseudo random frames and the receiving unit wi...

Страница 61: ...signal level when moving the antenna Begin the BER test AT Bxxxx and observe the signal strength indication Level while adjusting the orientation of the antenna A peak in signal level indicates optim...

Страница 62: ...seful statistics on radio operation which modems can be heard from a particular modem and how good the signal strength is from each modem AT S Radio Statistics S Display stats including last received...

Страница 63: ...ature Subtract 50 to get temp in deg C S33 State of Digital I O point or status of Dual Redundancy system S34 Battery Input Voltage Units 0 1Volt S35 Supply Input Voltage Units 0 1Volt 0 25 5 Volts Th...

Страница 64: ...test positions this is normally at a control centre or repeater site Fix the antenna in a temporary fashion You will need to make an initial assessment on how high the antenna should be mounted Take t...

Страница 65: ...er modules in order To change the transmit and receive frequency using AT commands enter the command ATFT xxx xxxx transmit or ATFR xxx xxxx receive where xxx xxxx is the new frequency in MHz The freq...

Страница 66: ...ed 10 mW to 500 mW 400 MHz band Radio P450H P450H radio detected 0 5W to 5W 400 MHz band Radio P150H P150H radio detected 0 5W to 5W 150 MHz band Radio Fault No response detected from radio to version...

Страница 67: ...ive Operating Temperature 30 to 60 degrees C 0 99 RH non condensing All models Extended Temp range Derated 58 72Mhz models 30 to 70 degrees C 0 99 RH non condensing Max Tx Power 1W Max Data Rate 4800...

Страница 68: ...ters max 6 450 MHz 5W 30 km 19200 baud 25Khz 35 km 9600 baud 12 5Khz 60 km 4800 baud 60 150 220 MHz 5W Dependant on local conditions Lightning surge protection Internal gas discharge arrester Antenna...

Страница 69: ...455U D Radio Modem User Manual Page 70 Jan 2016 Low signal receive led CTS RTS indication Online Link Status RS232 activity RS485 activity Radio Transmit RSSI measurement in dBm BER test...

Страница 70: ...s or loss of operations or profits and ELPRO is not liable for any consequential damages or loss of operations or profits resulting from the use of these products ELPRO is not liable for damages losse...

Страница 71: ...dio bandwidth setting AT N0 or AT N1 With Narrowband radio AT N1 selected With wideband radio AT N0 selected B0 Set 1200 baud Set 2400 baud B1 Set 2400 baud Set 4800 baud B2 Set 4800 baud Set 9600 bau...

Страница 72: ...Transmit Frequency xxx xxxx MHz Returns ERROR if outside radio range FR xxx xxxx Set Receive Frequency xxx xxxx MHz Returns ERROR if outside radio range ATH Hang up Hook control End a call or disable...

Страница 73: ...X2 RINGING Message ATZ Reset the modem and re load the configuration stored in non volatile memory AT A Remote Configuration and Diagnostics Access Mode A0 Disallow Remote Access A1 Allow Remote Acces...

Страница 74: ...y AT P Set the Remote Access Password This password must be entered by a remote user before accessing the module over the radio Also A1 must be set AT R Enter Radio Access Password Enables radio comma...

Страница 75: ...485 port E3 Enable CRC Error Checking for both RS 232 and RS 485 port AT F Restore Factory Defaults This function is also available from the external DIP Switch AT H Broadcast Repeater Hops Setting Se...

Страница 76: ...enters command mode and waits for commands L1 Fixed line mode For Acknowledged mode ATD automatically dials the number stored in Z0 ATA answers an incoming call For Unacknowledged modes the modem auto...

Страница 77: ...send the message a is the protocol address to match a a indicates a range of addresses n indicates a repeater address in the radio network and f indicates the final address 0 127 indicates RS232 port...

Страница 78: ...ow all settings including extra debug registers V10 View configuration in non volatile memory V11 As for V1 but configuration in non volatile memory V12 As for V2 but configuration in non volatile mem...

Страница 79: ...or K0 K2 Send Break ahead of buffered data As for K0 Transfer break to host ahead of buffered data K3 As for K2 Send break ahead of buffered data As for K2 K4 Queue Break behind buffered data As for K...

Страница 80: ...symbol indicates that messages is displayed for the corresponding ATX setting Numeric Code Verbal Message ATX setting Comments X0 X1 X2 X3 0 OK Valid Command Entered 1 CONNECT Connection established...

Страница 81: ...disables How frequently to send a Link Check message Usually set less than the timeout set by the AT T command Default 0 S7 1 255 Number of Connection attempts Acknowledged Mode How many times to atte...

Страница 82: ...buffer and no data is received on the serial port for this time radio transmission will begin regardless of the setting of S18 A value of zero disables the timeout so the modem will not transmit unti...

Страница 83: ...ssage is transmitted this number of times The sequence number and source address ensure that repeat messages are ignored by the receiver S30 0 255 Ackmode retries Number of times to re try in acknowle...

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