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Appendix C Hayes AT Command Reference

RFI-9256 Radio Modem User Manual

Page 88 of 109

Command

Description

ATQ0

Response codes are always generated.

ATQ1

Response codes are not generated.

Table 23: ATQ Quiet commands

C.1.8

“ATV” Verbal Response Codes

Response codes can be either verbal (English words), or numeric. The options for selecting response codes is
shown in Table 24.

Command

Description

ATV0

Numeric response codes are generated.

ATV1

Verbal (string based) response codes are generated.

Table 24: ATV Verbal response codes commands

See the section S-Register and %-Register Commands on page 14 for a full list of response codes.

C.1.9

“ATW” Delayed Response

The RFI-9256 can often establish connections much faster than a conventional public switched telephone
network (PSTN) modem. In order to be compatible with PSTN modems the

ATW

command can be used to

delay the

CONNECT

response to link establishment by 1 second. The options are shown in Table 25.

Command

Description

ATW0

Respond as soon as a connection is established.

ATW1

Allow for at least 1 second of delay before responding.

Table 25: ATW delayed response codes commands

C.1.10

“AT&C” Data Carrier Detect Control

Data Carrier Detect (DCD) is an RS-232 signal used to indicate to the DTE that a connection is established
to a remote radio. The

AT&C

command is used to tell the radio how it will control the DCD output as shown

in Table 26.

Содержание rfi-9256

Страница 1: ...RFI 9256 RADIO MODEM USER MANUAL www esis com au Ph 02 9481 7420 Fax 02 9481 7267 esis enq esis com au...

Страница 2: ...nce that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to...

Страница 3: ...11 4 2 Cruise Control 11 4 3 Terminal Menu Interface 13 4 4 Hayes AT Command Interface 13 4 5 Front Panel Interface 16 5 Operation 20 5 1 Serial Port Operation 20 5 2 Radio Operation 23 5 3 Protocol O...

Страница 4: ...O Example Schematics 63 A 7 Power Supply Notes 64 A 8 Version Numbering Scheme 64 A 9 Case Dimensions 66 A 10 OEM Dimensions 67 Appendix B Terminal Menu Reference 68 B 1 R Radio Configuration Menu 69...

Страница 5: ...le is fitted will be required to display on the outside and in a clearly visible area the notice Contains FCC ID P5M9256OEM Under FCC regulations use of certain antennas may require a Class II permiss...

Страница 6: ...ion protected from water excessive dust corrosive fumes extremes of temperature and direct sunlight 2 2 Connecting Antennas The RF antenna system should be installed in accordance with the manufacture...

Страница 7: ...DC Power Supply DB 25 Power Data Cable PLC Laptop for Configuration and Diagnostics Figure 2 Power Data cable Both the Main and Auxiliary ports are wired as RS232 DCE The pin out for the data and cont...

Страница 8: ...a a Windows Graphical User Interface Figure 3 Cruise Control interface Cruise Control communicates with an attached radio modem over a PC serial port The serial port configuration must match the radio...

Страница 9: ...e Always have the power supply unplugged and powered off when inserting and removing connectors STI Engineering assumes no responsibility that results from failure to follow instructions or failure to...

Страница 10: ...as possible will result in the best communication link Antennas in close proximity are potential sources of mutual interference It is possible that slight adjustments in antenna placement as little a...

Страница 11: ...is menu interface can be accessed through a terminal emulation program such as RFI InTerm 3 AT command interface The AT command interface is used to configure and control to the RFI 9256 through ASCII...

Страница 12: ...e their names in grey Changes made to serial port baud rate data bits parity stop bits flow control and protocol mode on the port that cruise control is open on do not take effect immediately They wil...

Страница 13: ...gurable period of time then the terminal menu will disable itself By default the terminal menu is disabled after 15 minutes Only 1 terminal menu can be available at any one time This is done to preven...

Страница 14: ...TER COMMANDS S registers and registers are used to store complex configuration parameters In order to set the value of an s register or register the following format is used ATS r n CR AT r n CR Where...

Страница 15: ...e memory using the AT W command The entire configuration profile will be retained after the radio has been powered off The radio also has factory default settings stored internally allowing all commun...

Страница 16: ...r to select another front panel mode continue to hold the button until the LED scrolls down to the appropriate LED before releasing The list of LED modes is shown in Table 2 LED Mode Function 1 Radio...

Страница 17: ...Mode 5 LED Name Function 1 DTR The current state of the DTR input on the main port Red indicates 12V while green indicates 12V 2 DCD The current state of the DCD output on the main port Red indicates...

Страница 18: ...here is a potential for interference from other radios A red flash of carrier detect does not mean user data has been discarded as the RFI 9256 will retry any packet that is lost or corrupted during t...

Страница 19: ...the Power LED flashes red there is most likely something wrong with the serial configuration between the radio and the connected device The red LED can also indicate an internal fault in the radio th...

Страница 20: ...ration is shown in Figure 6 4096 byte output buffer 4096 byte input buffer TX Line input from DTE RX Line output to DTE Input to RF internal processing Output from RF internal processing Figure 6 Buff...

Страница 21: ...tion to hardware flow control the CTS and DCD lines can be configured to behave in one of the following ways ONLINE controls CTS DCD The line is active when the front panel online LED is green or red...

Страница 22: ...tal number of framing errors that have occurred Framing errors usually occur due to mismatched serial port baud rates between the DTE and DCE Tx Bytes The total number of bytes that have been transmit...

Страница 23: ...ming arrangement is shown in Figure 7 Frame 1 f1 Frame 2 f2 Frame 3 f3 Frame 4 f4 Frame 5 f5 Frame 6 f6 Frame Time 20ms Master Packet Slave Packet Figure 7 RFI 9256 time division duplex frequency divi...

Страница 24: ...ve the RFI 9256 cannot be regarded as a direct wire replacement It will induce additional latency into the communications link as well as potentially causing changes in the timing between bytes inter...

Страница 25: ...that become corrupted due to RF interference configurable between 0 and 255 retries The more retries that are required to get a packet through the greater the latency induced Each retry adds an addit...

Страница 26: ...p over the channels searching for the master If after the network fail timer period expires the slave has failed to hear from its master and it reverts to the unlocked state For more information on co...

Страница 27: ...ase both latency and throughput while a high frame time will increase both latency and throughput This is discussed in the section Latency Reduction on page 30 DIRECTIONAL BIAS A single frame on the R...

Страница 28: ...the slave unit being faulty then it will transmit each frame the maximum number of retries This can dramatically slow down the throughput of a radio network The RFI 9256 also supports exponential back...

Страница 29: ...twork of RFI 9256 radios will consist of one master and one or more slaves Multiple co located masters are supported in the RFI 9256 system through three mechanisms Hopping Pattern Each master unit ha...

Страница 30: ...0 9999 These rules come about due to the way Hayes dial up works in a back to back repeater network See section 5 3 3 on page 34 for more information on Hayes dial up networking Back to back repeaters...

Страница 31: ...is used to detect the end of each packet Only once the end of the packet has been detected will the RFI 9256 transmit any of the packet The frame time must be configured to allow a full packet in a si...

Страница 32: ...er of bad packets received Lost packets The number of packets that have been lost Retries The number of retries or retransmissions this unit has used while transmitting Good headers The number of good...

Страница 33: ...ve the same hopping pattern network address and security code The master and slave have different local addresses Both the master and slave have the point to point protocol selected on their main and...

Страница 34: ...e main port on the remote unit 01 Auxiliary Port Establishes a connection between the current serial port and the auxiliary port on the remote unit 91 Virtual Hayes Establishes a connection between th...

Страница 35: ...munications occurs between the DTE s connected to the ports on the two radios This is known as online state Once a radio enters online state it assumes all the data sent to it is to be sent on to the...

Страница 36: ...uld be used ATD1043220001 CR In order to access the repeater slave s terminal menu dial up the menu system as if it were any other slave In order to access the repeater master s terminal menu dial up...

Страница 37: ...it against a radio address Routing services are provided for a number of SCADA protocols specifically Modbus Honeywell DNP3 TDE PROTOCOL ROUTING The protocol decoder for the packet based SCADA protoc...

Страница 38: ...RTU address to be assigned as the base address for the route and an end RTU address to define the range of addresses to be used by the route It also requires a radio address associated with the base...

Страница 39: ...twork configurations to co exist in a single radio network Point to point configurations Point to multipoint broadcast configurations Hayes dial up configurations SCADA protocol configurations The mos...

Страница 40: ...the LED is Off Once the dial up connection is established the LED is set On green If connection is severed the dialler source of the connection will flash the Online light red every time a packet is...

Страница 41: ...erval that may also be configured The smaller the sample interval the faster changes will be propagated across the radio network However if a lot of changes occur to the digital I Os in rapid successi...

Страница 42: ...ster and slave have the point to point protocol selected on their main serial port The point to point destination address on the slave is set to the master s local address while the point to point des...

Страница 43: ...VE Network Address 54 Hopping Pattern 18 Rx Address 2000 PROTOCOL CONFIGURATION Main Port Point to point to 1000 SERIAL CONFIGURATION Main Port 115200 8N1 Hardware Flow RADIO CONFIGURATION Unit is a M...

Страница 44: ...Applications RFI 9256 Radio Modem User Manual Page 44 of 109 1 and vice versa At the same time all data transmitted by DTE2 on the master will appear at DTE2 on slave 2 and vice versa...

Страница 45: ...point to 20 SERIAL CONFIGURATION Main Port 115200 8N1 Hardware Flow Aux Port 115200 8N1 No Flow RFI 9256 Repeater Master2 RFI 9256 Slave2 Aux DTE2 RADIO CONFIGURATION Unit is a SLAVE Network Address...

Страница 46: ...ADIO CONFIGURATION Unit is a SLAVE Network Address 16 Hopping Pattern 27 Rx Address 1001 PROTOCOL CONFIGURATION Main Port Broadcast Main Port ARQ 20 SERIAL CONFIGURATION Main Port 115200 8N1 Hardware...

Страница 47: ...ddress 3000 PROTOCOL CONFIGURATION Main Port Broadcast Main Port ARQ 20 SERIAL CONFIGURATION Main Port 115200 8N1 Hardware Flow Main Null Modem Cable RADIO CONFIGURATION Unit is a MASTER Network Addre...

Страница 48: ...FIGURATION Main Port 115200 8N1 Hardware Flow RADIO CONFIGURATION Unit is a SLAVE Network Address 19 Hopping Pattern 3 Local Address 3000 PROTOCOL CONFIGURATION Main Port Hayes Dial up SERIAL CONFIGUR...

Страница 49: ...ave 3 RADIO CONFIGURATION Unit is a SLAVE Network Address 35 Hopping Pattern 6 Local Address 5000 PROTOCOL CONFIGURATION Main Port Hayes Dial up SERIAL CONFIGURATION Main Port 115200 8N1 Hardware Flow...

Страница 50: ...y port of slave 1 As there is no back to back repeater involved in the connection the format does not need a preceding repeater address number ATD3092 CR Establishes a dial up connection from the mast...

Страница 51: ...t Route 1000 00 SERIAL CONFIGURATION Aux Port 9600 8O1 No Flow RADIO CONFIGURATION Unit is a SLAVE Network Address 1 Hopping Pattern 25 Local Address 3001 PROTOCOL CONFIGURATION Main Port Modbus Defau...

Страница 52: ...ress 2000 slave 1 The second route is a mapped route that links RTU addresses 55 and 56 to radio addresses 3001 00 to 3002 00 This means that traffic destined for an RTU with an address in the range 5...

Страница 53: ...Address 4008 PROTOCOL CONFIGURATION Main Port Modbus Default Route 30 00 SERIAL CONFIGURATION Main Port 9600 8O1 No Flow Main Null Modem Cable RADIO CONFIGURATION Unit is a MASTER Network Address 12 H...

Страница 54: ...r 1 routing table Master 2 must then correctly route all SCADA protocol packets to the slaves in its network This is done using the routing table in Table 15 Route Type RTU Address Radio Address Mappe...

Страница 55: ...pping Pattern 13 Rx Address 2000 PROTOCOL CONFIGURATION Main Port Point to point to 1000 AUXILIARY I O CONFIGURATION Auxiliary I O Follows Remote ENABLED Direction Bit0 input Bit1 output Power up defa...

Страница 56: ...n Bit0 input Bit1 output Power up default Bit0 N A Bit1 Low RADIO CONFIGURATION Unit is a MASTER Network Address 52 Hopping Pattern 23 Rx Address 20 PROTOCOL CONFIGURATION Main Port Point to point to...

Страница 57: ...tern 30 Local Address 2000 PROTOCOL CONFIGURATION Main Port Hayes Dial up AUXILIARY I O CONFIGURATION Auxiliary I O Follows Remote ENABLED Direction Bit0 input Bit1 output Power up default Bit0 N A Bi...

Страница 58: ...erface Asynchronous full duplex Receiver Sensitivity 104 dBm 10 4 raw BER 102 dBm 10 6 raw BER Modulation Type Gaussian Shaped FSK GFSK Spreading Code Frequency Hopping Hopping Patterns 32 user select...

Страница 59: ...ions RFI 9256 Radio Modem User Manual Page 59 of 109 Point to multipoint Broadcast Hayes Dial up SCADA Protocol Router ModBus DNP3 TDE Honeywell Back to back Repeater Operating Environment 10 C to 60...

Страница 60: ...17 I O Bit 2 Input Output CMOS 2 10 19 Synchronisation I O Input Output TTL 100K pull up internal voltage limiting 11 21 NC 12 23 NC 13 25 GND 14 2 12VDC 15 4 CTS Main Port Output RS 232 16 6 RTS Main...

Страница 61: ...Appendix A Technical Specifications RFI 9256 Radio Modem User Manual Page 61 of 109 A 4 Power Data Cable Assembly Figure 27 9256 power data cable assembly...

Страница 62: ...Appendix A Technical Specifications RFI 9256 Radio Modem User Manual Page 62 of 109 A 5 Back to back Repeater Cable Assembly Figure 28 RFI 9256 back to back repeater cable assembly...

Страница 63: ...Appendix A Technical Specifications RFI 9256 Radio Modem User Manual Page 63 of 109 A 6 I O Example Schematics A 6 1 Circuit Schematics Figure 29 Circuit Schematics...

Страница 64: ...rrent at 12VDC A 8 Version Numbering Scheme The RFI 9256 contains a firmware version string This version string provides some information regarding compatibility with other firmware versions and consi...

Страница 65: ...ustralia Major Number Minor Number Revision Country Identifier Product Name Figure 30 Example firmware version number Firmware revisions with major version number 1 will be compatible with this hardwa...

Страница 66: ...Appendix A Technical Specifications RFI 9256 Radio Modem User Manual Page 66 of 109 A 9 Case Dimensions Figure 31 Case physical dimensions...

Страница 67: ...Appendix A Technical Specifications RFI 9256 Radio Modem User Manual Page 67 of 109 A 10 OEM Dimensions Figure 32 OEM physical dimensions...

Страница 68: ...5 Manufactured Date 30 01 2002 R Radio Configuration Menu L Protocol Port Selection S Serial Port Configuration Menu M Radio and I O Configuration Menu P Radio Personality Menu D Diagnostics Menu Esc...

Страница 69: ...unit as Slave In any communication link one unit must be set as a master and the rest as slaves Slaves can initiate communication but follow the synchronisation of the master A slave can only communic...

Страница 70: ...tennas from more than one radio are placed within close proximity the units may be synchronised to prevent interference One radio must be configured to output a synchronisation signal while the other...

Страница 71: ...gured independently allowing for modes like broadcast where a low retry count is desirable to co exist with point to point or Hayes dial up modes on the same radio This is done through the protocol li...

Страница 72: ...e interference and all units on the same network must have the same hopping pattern It is advised that the default hopping pattern not be used in order to minimise the change of interference with othe...

Страница 73: ...g frames is covered in the section Directional Bias on page 27 B 2 L Protocol Port Selection Menu Protocol Port Selection Main Port Protocol Type Hayes Dialup Aux Port Protocol Type Hayes Dialup M Mai...

Страница 74: ...ultipoint broadcast operation See section 0 on page 33 for more information on point to multipoint broadcast network operation Hayes Dialup Configures the serial port for Hayes dial up operation See s...

Страница 75: ...2 1 M Hayes Command Control Menu Hayes Command Control Menu Main Port Hang up on DTR Dropped Echo is ON Response is ON Auto answer is ON Escape character Escape guard time 1000ms Connect Timeout 9985...

Страница 76: ...pped is used to disconnect whenever DTR changes from a high to a low Local on DTR low When DTR is low the radio goes into local command state This is equivalent to typing the escape sequence Once the...

Страница 77: ...lete Route Deletes an existing route from the routing table Delete All Routes Deletes all routes in the routing table for the selected port List All Routes Lists all the configured routes for this RFI...

Страница 78: ...e selected port See section B 1 1 on page 71 for more information Online Request Timer Sets the online request timer for the selected port See section B 1 1 on page 71 for more information B 3 S Seria...

Страница 79: ...45 Main serial port configuration menu Baud Rate Menu Selects the serial port baud rate for this port Flow Control Menu Selects the flow control method used for this port The main port supports both h...

Страница 80: ...the serial port When the packetising time has passed with no data received on the serial port all available data is transmitted over the air Rx Buffer Limit The Rx buffer limit allows control over how...

Страница 81: ...Main Port A Aux Port Esc Previous Menu Enter Choice Figure 48 Hayes command control menu Main Port Select to change the Hayes Command settings on the Main Port This is the same menu as described in B...

Страница 82: ...Security Code is Disabled Menu Timeout is 15 minutes U Set Unit Name P Set Menu Password R Remove Menu Password S Set Security Code D Delete Security Code M Set Menu Timeout Esc Previous Menu Enter Ch...

Страница 83: ...the auxiliary I Os to be set as outputs and then each I O turned on then off in turn This is used to test the functionality of the I O port Show channel signal noise When this function is selected a...

Страница 84: ...Event Log Menu Log Level General Information V View Log L Logging Level Menu C Clear Log Esc Previous Menu Enter Choice Figure 52 Event log menu View Log Used to view the debugging information suppli...

Страница 85: ...ial Logging Esc Previous Menu Enter Choice Figure 53 Event log menu Show channel signal noise This function is exactly the same as in the diagnostics menu in section B 6 on page 83 Show Stats Logging...

Страница 86: ...st be added eg 01 for unit with address 1 Hyphens spaces and colons can be used to make the command more readable however these will be ignored by the radio For example the command ATD30200001 is equi...

Страница 87: ...isplays the radios average NOISE in dBm ATI13 Displays the current port identifier 0 for main 1 for aux or 2 for a virtual Hayes dial up port ATI14 Displays the radio link status Table 22 ATI informat...

Страница 88: ...or a full list of response codes C 1 9 ATW Delayed Response The RFI 9256 can often establish connections much faster than a conventional public switched telephone network PSTN modem In order to be com...

Страница 89: ...s up the current connection whenever DTR goes from high to low AT D3 The radio hangs up and returns to the local command mode whenever DTR is low The radio with this configuration must be DTR asserted...

Страница 90: ...session C 1 14 AT K Flow Control The flow control mode for the current serial port is selected using the AT K command The selection options are shown in Table 30 Command Description AT K0 Flow control...

Страница 91: ...2 contains the ASCII values of the character that forms the escape sequence The default value for this register is the character with an ASCII value of 43 The radio will recognise three characters as...

Страница 92: ...0 99 seconds before and after entering the escape sequence C 2 5 ATS21 Set Security Code S register 21 sets the network security code for this radio The range of values is from 0 to 4294967295 All ra...

Страница 93: ...e information about online requests see section 5 3 6 on page 39 ATS43 400 CR Sets the radio to check for online status every 400ms C 2 11 ATS44 Hopping Pattern Sequence S register 44 sets the hopping...

Страница 94: ...air C 2 15 ATS50 Network Address S register 40 sets the network address of the radio All radios on a single network must have the same network in order to communicate Valid values are between 0 and 6...

Страница 95: ...Honeywell protocol See section 5 3 4 on page 37 for information on SCADA protocol utilization ATS70 13 CR Sets the serial port to the DNP3 protocol See section 5 3 4 on page 37 for information on SCAD...

Страница 96: ...s ATS84 100 CR This would cause the I Os to be sampled once every 100ms C 2 25 ATS90 Set DCD control S register 90 sets how the data carrier detect DCD output is controlled The options for controlling...

Страница 97: ...he connected serial port The values for S register 100 are limited to 110 300 600 1200 2400 4800 9600 19200 38400 57600 115200 To set the baud rate for a specific port the command is appended with 0 f...

Страница 98: ...03 sets the number of stop bits used by the connected serial port The stop bits can be set for a specific port by appending to the command 0 for the main port and 1 for the auxiliary port There are tw...

Страница 99: ...provide any function on the RFI 9256 They are only supplied for compatibility with existing systems The list of commands supplied for compatibility only are given in the summary of commands in the ne...

Страница 100: ...ume L2 Medium speaker volume L3 Highest speaker volume M0 Speaker off M1 Speaker on when connecting M2 Speaker on Q0 Responses ON Q1 Responses OFF V0 Numeric response codes V1 Verbal response codes X0...

Страница 101: ...rol K4 Software XON XOFF flow control L0 Set radio to slave mode L1 Set radio to master mode M0 Set ports to point to point M1 Set ports to multipoint dial up M2 Set ports to back to back repeater S0...

Страница 102: ...Appendix C Hayes AT Command Reference RFI 9256 Radio Modem User Manual Page 102 of 109 W1 Submit serial port configuration Table 36 General Commands...

Страница 103: ...Number of retries S42 Network fail timeout S43 Online request timer S44 Hopping pattern sequence number S45 Maximum transmit power S47 Frame time in milliseconds S48 Frame bias S50 Network address S51...

Страница 104: ...rence RFI 9256 Radio Modem User Manual Page 104 of 109 S103 Port stop bits S104 Port flow control Table 37 S register Commands Command Description Last on Line W W1 Compat 20 Unit name 22 Set menu pas...

Страница 105: ...Online Request Timer 1000ms Backoff Retry Disabled Tx Power Level 20 dBm RSSI trigger level 110 dBm Frame Time 20ms Directional Bias Disabled Table 39 Radio configuration default settings Value Defau...

Страница 106: ...Limit 3072 Table 41 Serial port default settings Value Default DCD Mode ONLINE controls DCD CTS Mode CTS disabled Auxiliary I O Sample Time 500ms Auxiliary I O follows Remote Disabled Auxiliary I O E...

Страница 107: ...edundancy Check DCE Data Communications Equipment DTE Data Terminal Equipment EIRP Effective Isotropic Radiated Power FDD Frequency Division Duplex FHSS Frequency Hopping Spread Spectrum ISM Industria...

Страница 108: ...33 Carrier Detect 18 Circuit Schematics 63 Configuration 11 Front Panel Interface 16 Hayes AT Command Interface 13 Terminal Menu Interface 13 User Interfaces 11 Serial Port 20 Cruise Control 11 Connec...

Страница 109: ...ble Assembly 61 Product Overview 5 Protocol Routing 37 Quick Start Guide 6 Radio Parameters 26 Radio Status LEDs 17 Receive Data 18 Retries 28 RF Communications Statistics 32 RSSI 17 RSSI and Noise 31...

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