MS-1U18S-1/6-GPIB - Dow-Key
Contents
1. Result was 22 CONFIGURATION FILE DOES NOT MATCH INSTALLED SWITCHES check for more errors Description The configuration file factory configuration which defines all switches configured inside the matrix does not match the actual installed switch types This error code is generated only at boot up and refers only to answering switches A switch not answering to CAN messages would result into an error code 10 SYST ERR Result was 23 MATRIX CONTAINS A 0 ID check for more errors Description The matrix contains a switch that has not been assigned a valid CAN bus address ID 0 is not a valid CAN bus address 44 Remote Operation SYST ERR Result was 30 COMMAND UNRECOGNIZED check for more errors Description This error code is generated when the commanded string does not contain any valid keyword e g Route System IDN RST at all SYST ERR Result was 36 ID IS OUT OF RANGE check for more errors Description A non existing switch ID has been commanded Eg Sending Route Switch17 8 When switch 11 does not exist SYST ERR Result was 50 UNABLE TO AQUIRE IP ADDRESS check for more errors Description DHCP is enabled ON but the IP address could not be acquired dynamically Eg Ethernet connection cable is disconnected SYST ERR Result was 51 FAN STALL check for more errors Description On models with fans equipped with sensors one or more fan2. S CR DowKey Microwave CORPORATION T DOVER COMPANY paren There Is No Substitute for Experience DOW KEY MICROWAVE 1U MS MP CB Matrix Series MS 1U18S 1 6 GPIB CAN BUS RF SWITCH MATRIX Operator s Manual Rev 2 THE RF MICROWAVE SWITCHING TECHNOLOGY SOLUTION COMPANY Copyright Dow Key Microwave Corporation 2010 all rights reserved Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Dow Key is a registered trademark of Dow Key Microwave Corp Document Number 49101 261 Revision 2 Ee mmm x DowKey Microwave en e ER w CORPORATION ao y o DOVER COMPANY 4822 McGrath Street Ventura CA 93003 Tel 805 650 0260 Fax 805 650 1734 Visit at www dowkey com WARRANTY Dow Key Microwave Corporation warrants this product to be free from defects in material and workmanship for a period of 1 year from date of shipment This warranty does not apply to defects resulting from product tampering or modification without Dow Key s express written consent This warranty also does not apply to software non rechargeable batteries power supplies or problems arising from normal wear or failure to follow instructions To exercise this warranty contact Dow Key Microwave headquarters in Ventura California You will be given prompt assistance and return instructions Send the produc
3. commands have been processed Note 1 Missing command numbers are commands reserved for Ethernet matrices and not applicable to GPIB models Note 2 Commands related to the GPIB controller s registers ESE ESE ESR STB SRE SRE can NOT be concatenated 54 Note Remote Operation Commands are NOT case sensitive For GPIB communication no ASCII termination is required but the End Or Identify EOI line shall be asserted at the end of each command Every command and response on the serial or USB port shall have r n Carriage return Ox0D and Line Feed 0x0A at the end Multiple commands with same header can be given in a single command line See rule 5 for an exception to this e g SYST IPADDRESS TCPPORT SERIALNUMBER 2 or ROUTE SWITCH 2 SWITCH1 note that the commands have to separated by Exception to rule 4 are commands related to the GPIB controller s registers ESE ESE ESR STB SRE SRE These commands can NOT be concatenated The default GPIB address is 9 In command SYST SCREENSAVER and SYST SCREENSAVER x the value n and x is in minutes The default value is 5 minutes 0 no screen saver Valid values for x are 0 2 3 4 5 6 55 Appendix A Technical Specifications Model MS 1U18S 1 6 GPIB Configuration 1 normally open SP6T switch mounted on the rear panel RF Connectors SMA on rear panel Frequency range DC to 18 GHz Return
4. As a rule of thumb electromechanical switches require approximately 10 15ms to switch position But the OPC query will return a 1 or the error status will be updated only after the switches have changed and confirmed their positions So it is safe to consider some safety margin and expect a response of 1 or an updated error status after about 70ms per switch As an example if 2 switches are commanded wait about 140ms before issuing an OPC query that will return a 1 or issuing an SYST ERR query or issuing a ROUTE SWITCHx query 52 Remote Operation This page intentionally left blank 53 GPIB RS232 and USB Command description for standard matrices Command Syntax Response Action Returns string in Model Name in the configuration file As a minimum will have model name 1 IDN MS 1U185 1 6 GPIB Could also have Vendor model serial number firmware revision The response shown in this table is just an example 2 OPC 1or0 Gives 1 if previous operation was completed and gives 0 if previous operation is still not complete 3 RST Puts e switches in the default position Transfer switches in pos 1 Most other switches in pos 0 open 4 ROUTE SWITCHx y or SWITCHx y Closes position y on switch x 5 ROUTE SWITCHx or SWITCHx n Gives current position of switch x 18 SYST SERIALNUMBER n Returns system serial number 22
5. GPIB Control Connector You can link devices in either a linear star or combination configuration using a shielded 24 conductor cable The standard IEEE 488 cable has both a plug and receptacle connector on both ends This connector is the Amphenol CHAMP or Cinch Series 57 MICRO RIBBON type See figure 3 4 Figure 3 4 GPIB Control Connector EE The following restrictions apply for normal operation when attaching instruments to the GPIB e Amaximum separation of 4 meters between any two instruments and an average separation of 2 meters over the entire bus e Amaximum total cable length of 20 meters e No more than 15 devices on the bus with no less than two thirds powered on e No two instruments having the same address If you are unable to meet the above restrictions the use of bus extenders is recommended 15 3 5 2 3 5 3 Connections Interface Signals The GPIB IEEE 488 interface system consists of 16 signal lines and 8 ground lines The 16 signal lines are divided into 3 groups 8 data lines 3 handshake lines and 5 interface management lines See table 3 4 for the signal assignments Table 3 4 GPIB Signal Assignments Pin Designation Type 1 DIO Data 2 DIO2 Data 3 DIO3 Data 4 DI04 Data 5 EOI Management 6 DAV Handshake 7 NRFD Handshake 8 NDAC Handshake 9 IFC Management 10 SRQ Management 11 ATN Management 12 SHIELD Gr
6. Not following this instruction will result in a non working matrix System Information View the Dow Key Matrix Product s Model Number its Serial Number set at factory and the Dow Key part number and revision level of firmware running on the Matrix Controller Add Switch Add switches to the Matrix Configuration see Sections 4 1 4 2 4 3 Delete Switch Delete switches from the Matrix Configuration see Section 4 1 4 2 4 3 Find Switch ID Discover and view the ID of any switch by following these steps 1 Using a matrix with at least one unused CAN Bus connector and leaving the switch in question unconnected select Main Menu gt System Settings gt Find Switch ID The screen will indicate that no switch is connected 2 Connect the switch in question The screen will now display the unknown switch ID NOTE occasionally the switch will not immediately report its ID in this case simply disconnect and reconnect the switch 3 Multiple switches may be connected and disconnected one at a time while in this screen 27 Manual LOCAL Operation 4 NOTE this operation puts the matrix s switches to sleep thereby rendering the matrix inoperable during the process ENTER or CLEAR or rebooting returns the matrix to normal Temperatures View current values of a maximum of 4 temperature sensors and set thresholds at which an Over Temperature alarm should occur Setting all 4 alarm thresholds to 0 Celsius
7. SYST ERR or SYST ERROR 4 SYNTAX ERROR See error number and error description The response shown in this table is just an SWITx y SWITx y SWITx 23 SYST STATUS y SSWITx y LOC PWR1 This command will return all Switch positions Local Remote mode Power supply status and Errors 3 f OK PWR2 FAULT list in the error buffer separated by a semicolon ERRORS 5 3 0 24 SYST SCREENSAVER n Returns time setting for the screen saver n is in minutes 25 SYST SCREENSAVER x Sets time setting for the screen saver x is in minutes 26 SYST GPIBADDRESS 9 Returns matrix system s GPIB address 27 _ SYST GPIBADDRESS x Sets matrix system s GPIB address to x 31 CLS Clear Status Command used to clear the Event Register in all register groups 32 ESE Command used to enable bits in the Standard Event Status Enable register 33 ESE Query used to read the content of the Standard Event Status Enable register 34 ESR Query used to read the content of the Event Status Register 35 OPC Sets the Operation Complete bit in the Event Status Register when all pending operations have been finished 36 STB Query used to read the content of the Status Byte Register 37 SRE Command used to enable bits in the Service Request Enable register 38 SRE Query used to read the content of the Service Request Enable register 39 wal This command prevents the matrix from executing any further commands or queries until the current
8. acceptable Other forms such as RO and ROU are not acceptable and will generate an error NOTE For GPIB no ASCII termination is required but the End Or Identify EOI line shall be asserted at the end of each command For RS232 and USB each command must be terminated with a carriage return 0x0D followed by a line feed 0x0A e g ROUT SWITx on ROUT SWITx n SWITx r n Where r stands for carriage return 0x0D and n stands for line feed 0x0A 34 7 3 Remote Operation Command Separators and conventions A colon is used to separate a command keyword from a lower level keyword A blank space is used to separate a parameter from a command keyword A comma is used if a command requires more than one parameter A semicolon is used to combine multiple commands into one message string Commands from the same subsystem are permitted to skip repeating the upper level keyword Eg Route Switch1 8 Switch2 5 Switch3 2 A colon is used when linking commands from different subsystems into one message string allowing a new upper level keyword to be introduced Since the keyword is optional such keyword could also be omitted see example 2 Only the first command requires the colon Any subsequent commands of the same subsystem do not require the colon see example 3 Ex 1 Route Switch1 8 Switch2 5 Switch3 2 System Error Ex 2 Route Switch1 8 Switch2 5 Switch3 2 Err
9. 1 The Keypad LCD e En EE 22 5 2 Main Menu EE 24 521 Switching eleien en edd 24 E Error OPGraliOn EE 26 OG SY SION SOU A Sites lke E wk td dc cee wed ctl ed oes wheel uel wend ones 27 5 2 4 Ethernet edel EE EE 29 525 Re pr elei lela EE er 29 O2 6 Set E Baud WEE 29 52 Set GPIB AdGIeSs ege 29 6 IEEE 488 2 Register IOUS eebe scence attends attends gd e 30 OA introducti oN IO IEEE 4862 Ee 30 6 2 Condition e TEE 30 GE NR Ne Ge EE 30 64 Enable e E EE 30 65 The Status Byte e EE 31 6 6 The Standard Event Register E 32 6 7 IEEE 488 2 Common Commande sss sss 33 7 Remote OPS AO EE 34 AAs introduction Eed Ee ege 34 7 2 Command Syntax Structure deene eee 34 7 3 Command Separators and Copnventons eee eee eee 35 LAS Common Commande sss tus cae oe an beg lod ca Tau bap les bea et 36 P ME e EE 36 Ae T ee 36 TASA SE EE 37 TAA eege ged 37 ge ogee B RE 38 E EE 38 TA ll EE 39 TARE ARO EE 40 EE E 40 T410 lt T 7 EE 41 EE AS E 41 TAA A OT BE 41 T LT Be slnl iiien ereere eeaeee oree oni ienit 42 T5 SYSTFERR EE 42 fio ER CET RE 46 L OYSA NUS eea e a a e aen 47 TOA SY YSTSCREENSAVER EE 48 EE OCREENSAVER EE 48 7 5 6 EEN 49 foul SY Sr GRIBADDRESS A deste indss en iekets ed nica iach 49 7 6 Switch Module Command KE sees 50 7 6 1 SWITch lt id gt VALue lt number gt sese eee 50 7 6 2 Setting switch x tO position D e 51 7 6 3 Requesting Switch x Current position 52 PODS elt EE 56 Technical eet le E 56
10. 2 3 4 5 Note that 1 is not a valid value 0 Screen saver is disabled Possible error codes 5 Factory default value 5 Power on behavior Keeps last value RST effect None SYST SCREENSAVER x Syntax SYSTem SCREENSAVER x Description This command will set the screen saver time settings x x is in minutes Possible values for x are 0 2 3 4 5 Note that 1 is not a valid value 0 Screen saver is disabled Possible error codes 5 Factory default value 5 Power on behavior Keeps last value RST effect None 48 Remote Operation 7 5 6 SYST GPIBADDRESS 7 5 7 Syntax SYSTem GPIBADDRESS Description This command will return the matrix s GPIB address Possible values are 1 to 30 Possible error codes 5 Factory default value 9 Power on behavior Keeps last value RST effect None SYST GPIBADDRESS x Syntax SYSTem GPIBADDRESS x Description This command will set the GPIB address to x Possible values for x are 1 to 30 Possible error codes 5 Factory default value 9 Power on behavior Keeps last value RST effect None 49 Remote Operation 7 6 7 6 1 Switch Module Command Set The following contains the switch module commands of SCPI that the GPIB RS 232 USB control is compatible with SWITch lt id gt VALue lt number gt Syntax ROUTe SWITch lt id gt VALue lt number gt Description This command is used to control t
11. disables Over Temperature alarms and causes the current temperatures to read out 0 as well this is the recommended setting for Matrix Products that contain no temperature sensors Most standard Models do not feature temperature sensors Switch Closure Counts View the number of times any position of any switch configured to the matrix has been closed upon to a maximum of 1 000 000 Switch Information View the Part Number Serial Number Firmware Number Firmware Revision Level maximum number of positions its PCBA Code factory and Coil Delay Time of any switch configured to the matrix Default Settings This password protected option is used during the assembly process to set serial number MAC address for Ethernet based matrices and CAN bus speed and is not intended for Operator s use 28 Manual LOCAL Operation 5 2 4 Ethernet Options Ethernet Menu Not applicable to GPIB IEEE 488 models This menu is not operational 5 2 5 LCD Options View and adjust the brightness and contrast of the LCD Changes made here are persistent over power down and up 5 2 6 Set RS232 Baud Rate View and select the Serial Port s Baud rate from a set of preselected values from 1200 to 115 200 b s see Section 3 3 Use the arrows to change the baud rate settings Default value is 9600b s 5 2 7 Set GPIB Address View and see the GPIB address from 1 to 30 Use the arrows to change the address settings Defaul
12. position or is reported to the Operator when a switch fails to respond to a query for current position A switch whose ID is 0 is referred to as a zero switch or also a O switch A switch whose ID is other than 0 is referred to as an N switch Zero switches and N switches have different properties Only a zero switch may change into an N switch An N switch may not change its ID to anything other than 0 A zero switch will not respond to commands to change or report its position A zero switch will not respond to queries for switch position closure counts A zero switch may not be added to a Configuration see below as an ID 0 19 Configuring the Matrix 4 3 Adding and Deleting Switches The following rules apply when adding a switch to the Matrix Configuration the desired ID to add is referred to as the target ID The desired switch to ADD must be connected to the matrix before executing the ADD procedure If the connected switch is a 0 switch AND the target ID is not yet configured AND a switch possessing the target ID is not already connected then the 0 switch will change its ID to the target ID and the Configuration will be updated If the connected switch is a 0 switch AND the target ID is already configured AND a switch possessing the target ID is not already connected AND the 0 switch s number of positions data matches that of the Configuration s then the 0 switch will change its ID to the
13. supplies temperature sensors and fans and therefore will not report this status information Note 2 Multiple instances of the same error code will appear multiple times E g if two different switches fail to respond to CAN messages two instances of error 10 will be returned But multiple error instances of the same switch will appear only once Result SWITX y SWITx y SWITX y 3 SWITx y LOC PWR1 OK PWR2 FAULT ERRORS 5 3 0 SWIT Switch A Switch number ID Y Switch position LOC Local mode REM Remote mode PWR1 Power supply 1 PWR2 Power supply 2 Only for systems with dual power supplies TEMP 1 Temperature sensor 1 Only if temp sensor 1 is enabled TEMP2 Temperature sensor 2 Only if temp sensor 2 is enabled TEMP3 Temperature sensor 3 Only if temp sensor 3 is enabled TEMP4 Temperature sensor 4 Only if temp sensor 4 is enabled FAN Fan 1 Only if Fan sensor 1 is enabled FAN2 Fan 2 Only if Fan sensor 2 is enabled FAN3 Fan 3 Only if Fan sensor 3 is enabled FAN4 Fan 4 Only if Fan sensor 4 is enabled ERRORS Error codes Each number corresponds to a specific error code described in the user manual Not all error codes apply to the matrix Possible error codes None 47 Remote Operation 7 5 4 SYST SCREENSAVER 7 5 5 Syntax SYSTem SCREENSAVER Description This command will return the screen saver time settings n n is in minutes Possible values for n are 0
14. target ID If the connected switch is an N switch AND the target ID N is not yet a configured ID then the N switch will be added i e the Configuration will be updated If the connected switch is an N switch AND the target ID N is already a configured ID AND the N switch s number of positions data matches that of the Configuration s then the N switch will be added i e the Configuration will be updated actually the ID isn t really added since the ID is already configured however a Configuration match is performed The following rules apply when deleting a switch from the Configuration the desired ID to delete is referred to as the target ID Only an N switch may be deleted from a Configuration e are not Configurable If the N switch to delete is connected and is not a Configured ID AND a zero switch is not connected then the N switch will be returned to a 0 switch If the N switch to delete is connected and is already a Configured ID AND a zero switch is not connected then the N switch will be removed from the Configuration and its ID set to 0 i e turning the N switch into a 0 switch If the N switch to delete is connected and is already a Configured ID AND a zero switch is connected then the N switch will be removed from the Configuration but the N switch s ID will remain N If the N switch to delete is not connected and is already a Configured ID then NOTE the ID will be re
15. 20 outputs GPIB MP chassis size frequency connector number of ports remote control type chassis size 1U 2U 3U 4U etc frequency 12 for 12 4 GHz 18 for 18 GHz 26 for 26 5 GHz 40 for 40 GHz connector B for BNC N for N type S for SMA K for 2 9 mm number of ports 20 30 40 50 60 70 80 90 100 and more ports if chassis size allows If ports are internally terminated add T to the number Example 20T 100T remote control type ENET for Ethernet RS 232 USB GPIB for IEEE 488 USB Note There is always one only input and a certain number of outputs So no need to indicate the 1 for the input General Information 1 4 CB Matrices CB Series stands for Crossbar It is a matrix with several inputs connecting to several outputs Only one input can be connected to one output at any given time The switches are populated inside the matrix chassis and are interconnected so that any input can connect to any output and vice versa All input output RF ports are available to the user on the rear panel of the matrix Depending on the size of the switch and the quantities needed the matrix size can grow from 2RU to 4RU or even larger 1 1 2 2 Input 1 SWT 3 3 SW5 Output 1 4 A 1 ck 1 2 2 Input 2 SW2 3 3 SW6 Output 2 4 A 1 1 2 Lk 2 Input 3 lt SW3 3 3 S
16. 250Vac x 1 1 4 Bel Fuse Inc 3SB 1 R Table 3 1 AC Line Fuse Information 3 2 Ground Connection The rear panel GND ground screw refer figures 2 2 2 3 and 2 4 should be connected to safety earth ground using 18 AWG or larger wire 12 Connections RS232 Connection The switch matrix may be operated over this connection See Section 6 for a description of the commands The RS232 connection is configured with these default settings 9600 Baud 8 bit data no parity 1 stop bit The baud rate can be changed thru the keypad LCD to 1200 2400 4800 9600 19200 38400 57600 115200 bits sec Figure 3 2 and Table 3 2 show the pin numbers and functions for the RS232 female connector 5 1 9 6 Figure 3 2 RS232 Female Connector Pin Numbers Pin 1 NC Pin 2 Transmit Pin 3 Receive Pin 4 NC Pin 5 Ground Pin 6 NC Pin 7 NC Pin 8 NC Pin 9 NC Table 3 2 RS232 Female Connector Pin Functions 13 3 4 Connections CAN Bus Connection This connection allows the internal matrix controller to be easily interfaced to another Dow Key Microwave Switch Matrix using a one to one straight through cable This allows a master matrix to control an extension matrix However the extension matrix being interfaced must not have any internal intelligent controller it must be a simple RF Switch Matrix extension Furthermore the switches in the extension matrix being interfaced must have CAN ID s unique to a
17. Appendix eege 57 RF Rei Le EE 57 Matrix ces T Tele KEEN 57 vi 1 General Information 1 1 Introduction The Dow Key Microwave MS MP CB Switch Matrix series are electromechanical RF matrices They come equipped with ENET Ethernet or GPIB IEEE 488 port which allows the user to easily access the matrix remotely This manual addresses the GPIB IEEE 488 version Other interfaces included are an RS 232 port a USB used as virtual serial port and a CAN Bus port The 1U models are 1 Rack Unit high 1 75 and come equipped with a LCD keypad front panel display for manual Local operation These models are not intended to be used to power or control anything other than Dow Key supplied switches Connection of other CAN Bus products or other devices not described herein will void quality certifications and the warranty This user manual covers all three matrix series since most features are the same among the various models The user shall focus on the matrix series of interest and skip any section that does not pertain to his her matrix Information specific to your model like technical specifications and RF configuration can be found in appendices at the end of this manual General Information 1 2 MS Matrices MS Series stands for Multiple Switches It is a matrix where a number of independent switches are populated on the rear panel or inside the matrix enclosure From an RF point of view the switches are not interconnecte
18. W7 Output 3 4 A 1 1 2 2 Input 4a lt _ wu 3 sw8 gt gt Output 4 4 4 Example of a CB series matrix with 4 inputs and 4 outputs Part Numbering Examples CB 4U18S 10X10 GPIB A CrossBar matrix with the following characteristics 4U 18 GHz SMA 10 inputs 10 outputs GPIB CB 4U18N 8X8 GPIB A CrossBar matrix with the following characteristics 4U 18 GHz N connectors 8 inputs 8 outputs GPIB CB 2U18S 4X4 GPIB A CrossBar matrix with the following characteristics 2U 18 GHz SMA 4 inputs 4 outputs GPIB CB chassis size frequency connector number of inputs X number of outputs remote control type chassis size 1U 2U 3U 4U etc frequency 12 for 12 4 GHz 18 for 18 GHz 26 for 26 5 GHz 40 for 40 GHz connector B for BNC N for N S for SMA K for 2 9 mm number of inputs 2 3 4 5 10 12 16 20 or more if chassis size allows number of outputs 2 3 4 5 10 12 16 20 or more if chassis size allows remote control type ENET for Ethernet RS 232 USB GPIB for IEEE 488 USB General Information 1 5 Technical Specifications Refer to appendix A 1 6 1 7 1 8 1 9 General Information Safety Precaution Safety precautions should be observed before using this product and any associated instrumentation This product is intended for use by qualified personnel who recognize the safety precautions required to avoid possible injury I
19. able in the instruments output buffer 5 Standard Event 32 One or more bits are set in the Standard Event Register bits must be enabled 6 Master Summary 64 One or more bits are set in the Status Byte Register bits must be enabled T 128 Free for manufacturer to te a C LA The Status Byte condition register is cleared when e The CLS command is executed e One of the event registers in the other registers are read only the corresponding bits are cleared in the Statue Byte condition register The Status Byte enable register is cleared when e The SRE 0 command is executed 31 IEEE 488 2 Register Model 6 6 The Standard Event Register The Standard Event Register reports different types of events that may occur in the instrument Any or all of these conditions can be reported to the Standard Event summary bit through the enable register To set the enable register mask you must write a decimal value to the register using the ESE command Table 6 2 _ Bit definitions Standard Event Register Bit Number Decimal Value Definitions 0 Operation Complete 1 All commands prior to and including OPC have been executed 1 2 Free for manufacturer to assign 2 Query Error 4 The instrument tried to read the output buffer but it was empty Or a new command line was received before a previous query has been read Or both the input and output buffers are full 3 Device Error 8 A self test or cal
20. ces have released it The DAV Data Valid handshake line is asserted by the Talker to indicate that a data or control byte has been placed on the data lines and has had the minimum specified stabilizing time The byte can now be safely accepted by the devices Interface Management Lines The five interface management lines ATN EOI IFC REN SRQ manage the flow of control and data bytes across the interface The ATN Attention signal is asserted by the controller to indicate that it is placing an address or control byte on the data bus ATN is released to allow the assigned Talker to place status or data on the data bus The Controller regains control by reasserting ATN this is normally done synchronously with the handshake to avoid confusion between control and data bytes The EOI End or Identify signal has two uses A talker may assert ZO simultaneously with the last byte of data to indicate end of data The Controller may assert EOI along with ATN to initiate a parallel poll Although many devices do not use parallel poll all devices should use EOI to end transfers many currently available ones do not The IFC Interface Clear signal is asserted only by the System Controller in order to initialize all device interfaces to a known state After releasing IFC the System Controller is the Active Controller 17 3 6 Connections The REN Remote Enable signal is asserted only by the System Controller Its assertion does
21. code is maintained and reserved for legacy purposes only 43 Remote Operation SYST ERR Result was 10 SWITCH DID NOT RESPOND x check for more errors Description Switch x did not respond to a position query E g CAN bus communication failure or damaged switch SYST ERR Result was 11 SWITCH S RESPONSE INVALID x check for more errors Description Switch x responded but with the wrong response code This error is related to wrong internal CAN bus communication codes SYST ERR Result was 12 SWITCH S POSITION INCORRECT x check for more errors Description Switch x reported to be closed on a position different than what it was commanded to be E g Commanded position is 4 reported position is 3 SYST ERR Result was 13 SWITCH S POSITION UNKNOWN x check for more errors Description Switch x reported to be closed on an unknown position E g A defective damaged switch SYST ERR Result was 20 MATRIX IS NOT CONFIGURED check for more errors Description The configuration file factory configuration defining all switches configured inside the matrix has not been uploaded The matrix does not know what and how many switches to control SYST ERR Result was 21 CONFIGURATION FILE IS CORRUPT check for more errors Description The configuration file factory configuration defining all switches configured inside the matrix is corrupted SYST ERR
22. d and all switch s RF ports are available to the user on the rear panel of the matrix Depending on the size of the switch and the quantities needed the matrix size can grow from 1RU to 4RU or even larger Out 1 Out 2 Input lt SWT L Out 3 m Out 4 Out 1 Out 2 Input lt sw2 l Out 3 Out 4 Out 1 Out 2 Input SW3 l Out 3 Out 4 Out 1 m Out 2 Input sw4 L Out 3 m Out 4 Example of an MS series matrix with four independent SP4T switches Part Numbering Examples MS 1U18S 4 X GPIB A Multi Switch matrix with the following characteristics 1U 18 GHz SMA 4 transfer switches GPIB MS 2U26S 4 6T GPIB A Multi Switch matrix with the following characteristics 2U 26 GHz SMA 4 Terminated SP6T GPIB MS 4U18N 12 10 GPIB A Multi Switch matrix with the following characteristics 4U 18 GHz N connectors 12 SP10T GPIB The part numbering is interpreted as follows MS chassis size frequency connector number of switches type of switch remote control type chassis size 1U 2U 3U 4U etc frequency 12 for 12 4 GHz 18 for 18 GHz 26 for 26 5 GHz 40 for 40 GHz connector B for BNC N for N S for SMA K for 2 9 mm number of switches 1 2 3 4 5 116 or more if chassis size allows type of switch 2T terminating one port DPDT gt terminated SPDT X for DPDT 4 for SP4T 6 for SP6T 8 for SP8T 10 for SP10T 112 for SP12T I
23. dapted to work with GPIB Ethernet RS 232 and USB controls The matrix has internal software loaded that uses SCPI command structure These commands are standard messages for the remote control of programmable instruments which are sent by the GPIB and or Ethernet and or RS 232 and or USB controller The principal objective of SCPI is to make the programming of a test system easier for the user When the basic concepts and command structure of SCPI are understood it will be easy for the user to write or modify a control program for the matrix NOTE Not all commands for SCPI are compatible with GPIB Ethernet RS 232 and USB only the ones stated in this document Command Syntax Structure ROUTe SWITch lt id gt VALue lt number gt MAX e Square brackets indicate optional keywords or parameters e Braces enclosure parameter choices with a command string e Triangle brackets lt gt enclose parameters for which you must substitute a value e Vertical bar separates multiple parameter choices The command syntax shows most commands as a mixture of upper and lower case letters The upper case letters indicate the abbreviated spelling for the command For shorter program lines the abbreviated form is used For better program readability the long form is used For example in the above syntax statement ROUT and ROUTE are both acceptable forms Since both upper and or lower case letters are acceptable ROUTE rout and Rout are all
24. e binary weighted sum of all bits in that register Enable Register An enable register defines which bits in the event register will be reported to the Status Byte resister group You can write to or read from an enable register A CLS command will not clear the enable register but it does clear all bits in the event resister To enable bit in the enable register to be reported to the Statue Byte register you must write a decimal value that corresponds to the binary weighted sum of the corresponding bits 30 6 5 IEEE 488 2 Register Model The Status Byte Register The Status Byte register reports conditions from the other registers Data in the instruments output buffer is immediately reported on the Message Available bit bit 4 Clearing an event register from one of the other registers will clear the corresponding bits in the Status Byte condition register Reading all messages from the output buffer including any pending queries will clear the Message Available bit To set the enable register mask and generate an SRQ service request you must write a decimal value to the register using the SRE command Table 6 1 Bit definitions Status Byte Register Bit Number Decimal Value Definitions 0 1 Free for manufacturer to assign 1 2 Free for manufacturer to assign 2 4 Free for manufacturer to assign 3 8 Free for manufacturer to assign 4 Message Available 16 Data is avail
25. e other end of the supplied power cord to a grounded AC outlet WARNING The power cord supplied with the matrix contains a separate ground for use with grounded outlets FAILURE TO USE A GROUNDED OUTLET MAY RESULT IN PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK Line Fuse Replacement A rear panel fuse protects the power line input of the matrix If the line fuse needs replacement perform the steps below WARNING Disconnect the line cord from the unit before changing the line fuse 1 The fuse is located in a holder in the power module unit above the AC receptacle figure 3 1 At the top is a small tab use a small bladed screwdriver to release the fuse holder 2 Slide the fuse holder out to gain access to the fuse carrier and fuse 3 Remove the carrier with the blown fuse and replace with the correct type listed in Table 3 1 CAUTION For continued protection against fire or unit damage replace the fuse only with the type and rating listed 4 Install the fuse carrier in the fuse holder then insert the fuse holder back in the power entry module 11 Connections Insert small bladed screwdriver to release the fuse ITH 8 DISCONNECT POWER l O j L BEFORE REPLACING FUSE Figure 3 1 Power Entry Module Line c Voltage Fuse Rating Manufacturer Manufacturer Part No 110 240V 1A slow blow
26. et the correct response on the LCD the Operator is encouraged to find a comfortable cadence when operating the keypad Note To preserve the life of the LCD it has a screen saver feature After 5 minutes the LCD backlight will turn off Once dark pressing any key will have no effect other than to re illuminate the backlight The matrix will power up in LOCAL Operating Mode LOCAL Operating Mode means that the matrix is receiving commands from the front panel Keypad When in LOCAL Operation Mode the matrix will switch automatically in REMOTE mode as soon aS commands coming from a remote control computer are received GPIB Serial or USB The matrix will return to LOCAL Mode upon the pressing of any key The matrix will not accept any other local commands until the operator switches to LOCAL mode by pushing any button on the keypad As stated before to switch to REMOTE Operation Mode the operator needs to send a command GPIB Serial or USB by means of a remote control computer All LOCAL operation of the matrix is accomplished via the front panel s Keypad LCD The various screens encountered in the matrix s operation contain the following controls 23 5 2 Main Menu Manual LOCAL Operation 5 2 1 Switching Operations Switch Operations Menu Set Switch Positions View the currently set position and change the position of a switch who s ID has been configured to the matrix Use the arrows to change swi
27. f all bits set in the register Note This command can NOT be concatenated with other commands It must be issued as a single command 37 Common Commands 7 4 5 IDN Syntax IDN Result A string is returned which consists of the following parts Model Model Matrix model number Possible error codes None Example IDN Result MS 1U18S 10 2 GPIB 7 4 6 OPC Syntax OPC Description This command causes the device to set the Operation Complete bit in the Standard Event Register when all pending operations have been finished 38 Common Commands 7 4 7 OPC Syntax ODC Description This query returns an ASCII character 1 when all pending operations have been finished Result ASCII character 1 Possible error codes None Example 1 OPC Result 4 HI Example 2 SWIT1 4 SWIT2 4 OPC Result 0 Timing In Example 2 the matrix did not have the time to execute the command Hence a 0 is returned A subsequent OPC will return a 1 as shown in Example 1 The timing to execute a command depends on the length of the command in case of concatenated commands In case of switching commands like on Example 2 the controller will first command each switch to set its new position then query each switch to ensure that the positions are closed and finally respond with a 1 to the OPC query As a rule of thumb electromechanical switches require approx
28. f switch type is terminated add T to the number Example 6T terminated SP6T number of switches type of switch If different switch types are combined repeat this section as needed Example MS 1U18S 2 X 2 6T GPIB remote control type ENET for Ethernet RS 232 USB GPIB for IEEE 488 USB 2 General Information 1 3 MP Matrices MP Series stands for Multiplexer It is a matrix with one input connecting to many outputs only one at the time or since the RF switches are bi directional many inputs connected to one output only one at the time The switches are populated either on the rear panel or inside the matrix chassis From an RF point of view the switches are interconnected and all input output RF ports are available to the user on the rear panel of the matrix Depending on the size of the switch and the quantities needed the matrix size can grow from 1RU to 4RU or even larger Out 1 Out 2 Out 3 m Out 4 sSw2 Out 5 m Out 6 Out 7 m Out 8 SW3 Input swi Out 9 Out 10 Out 11 Out 12 sw4 m Out 13 Out 14 Out 15 Out 16 SW a Example of an MP series matrix with 1 input output and 16 outputs inputs Part Numbering Examples MP 4U18S 100 GPIB A Multi Plex matrix with the following characteristics 4U 18 GHz SMA 100 outputs GPIB MP 4U18S 20 GPIB A Multi Plex matrix with the following characteristics 4U 18 GHz SMA
29. he position of the switches The switch specified by the numeric suffix lt id gt is set to position lt number gt Switch positions are specified in a 0 to N fashion therefore legal values for lt number gt are from 0 to the maximum number of position for the switch For example a SP10T switch has 11 positions 0 thru 10 Position 0 means the switch is set to its default position For most switches the default position is pos 0 open switch So in case of a SP10T switch this means no position is closed In case of a transfer switch since it does not have an open position the default position is pos 1 So commanding it to pos 0 will close it to position 1 50 Remote Operation 7 6 2 Setting switch x to position n x switch module address n position to set and must be within the switches parameter Example SP10T valid positions are O thru 10 only Examples ROUTE SWITCHx n ROUT SWITCHx n ROUTE SWITx n ROUT SWITx n SWITCHx n SWITx n ROUTE SWITCHx VALUE n ROUTE SWITCHx VAL n SWITx VAL n Possible error codes 5 10 12 13 Factory default value N a Power on behavior Keeps last value RST effect SP6T switch will open all positions Transfer switch will close position 1 Timing The timing to execute a command depends on the length of the command in case of concatenated commands In case of switching commands the controller will first command each switch to set its new position then query each
30. ibration error occurred 4 Execution Error 16 An execution error occurred 5 Command Error 32 A command syntax error occurred 6 64 Free for manufacturer to E E Oe ee ee T 128 Free for manufacturer to assign The Standard event register is cleared when e The CLS command is executed e A query of the event register using the ESR Command The Standard Event enable register is cleared when e The ESE 0 command is executed 32 6 7 IEEE 488 2 Register Model IEEE 488 2 Common Commands This matrix implements common commands that the IEEE 488 2 standard defines The following contains a list of a subset of these commands For more details refer to the related section Table 6 3 Common Commands Mnemonic Name Section CLS Clear Status Command 7 4 1 ESE Standard Event Status Enable Command 7 4 2 ESE Standard Event Status Enable Query 7 4 3 ESR Standard Event Status Register Query 7 4 4 IDN Identification Query 7 4 5 OPC Operation Complete Command 7 4 6 OPC Operation Complete Query 7 4 7 RST Reset Command 7 4 8 STB Read Status Byte Query 7 4 9 SRE Service Request Enable Command 7 4 10 SRE Service Request Enable Query 7 4 11 WA Wait to Continue Command 7 4 12 33 Remote Operation 7 1 7 2 Introduction to SCPI The Standard Commands for Programmable Instruments SCPI is a command structure that is based on the IEEE 488 2 specification which Dow key has a
31. imately 10 15ms to switch position But the OPC query will return a 1 only after the switches have not only changed its positions but rather also confirmed its position So it is safe to consider some safety margin and expect a response of 1 after about 70ms per switch As an example if 2 switches are commanded wait about 140ms before issuing an OPC query that will return a 1 39 Common Commands 7 4 8 RST Syntax RST Description This command performs a device reset This will set the instrument so that all switches are in the default state For SPnT switches the default state is all RF ports are open position 0 For a transfer switch the default state is position 1 is closed Possible error codes 11 12 13 Timing Before issuing any other command after a RST use the following considerations The RST command is translated by the internal controller board to command on the CAN bus level each switch to position 0 open The amount of these commands depends on the amount of switches present in the matrix Each switch requires approximately 10 15ms to switch position So to execute an RST command to open all positions without verifying the switch s positions will require at least n x 10 15ms where n is the number of switches in the matrix 7 4 9 STB Syntax STB Description Query the Status Byte Register This command is similar to a Serial Poll but is processed like any o
32. loss VSWR Insertion loss Isolation RF Power Frequency GHz DC 3 3 8 8 12 4 12 4 18 VSWR Ratio max 1 20 1 1 30 1 1 40 1 1 50 1 0 3 0 4 0 5 Insertion Loss dB max 0 2 Isolation dB min RF Power Watts CW max Impedance 50 0 Switching Speed 50ms per switch Operating Temp 0 to 50 degrees C Switch Type One normally open SP6T Switch p n 565 5208 3 ROHS Line Voltage 120 240 VAC 50 60 Hz Control Interfaces GPIB IEEE 488 Connector RS 232 via 9 pin D Sub female connector CAN Bus via 4 pin XLR female connector USB type A used as virtual serial port RS 232 Settings Settable at 1200 2400 4800 9600 default 19200 38400 57600 115200 bits sec 8 bit data no parity 1 stop bit Dimensions 1 72 H x 19 W x 14 75 D without handles 56 Appendix B RF Configuration Model MS 1U18S 1 6 GPIB One normally open SP6T switch Dow Key part number 565 5208 3 ROHS mounted on the rear Matrix RF diagram Note The switch is bi directional Hence each RF port can be considered an input or an output Outi Out2 Out3 Out5 Out6 57
33. low the operator to modify various parameter values all such data fields are presented with a currently set or default value blinking prompting the operator to modify the value Some screens present multiple data fields and the keypad is used to navigate around them The keypad s keys have multiple functions depending on which screen is being presented mu The keypad s round center key is referred to as ENTER and serves as set select done or return The keypad s arrow keys pointing the 4 cardinal directions are referred to as UP DOWN LEFT and RIGHT 22 Manual LOCAL Operation UP and DOWN serve as scroll up scroll down increment or decrement Many data fields values are modified by UP and DOWN and many of those allow the pressing and holding of the UP and DOWN keys to cause an acceleration of the incrementing or decrementing The keypad s upper left diagonal key is referred to as UP DIAG This key serves as back clear or escape The keypad s lower left diagonal key causes no action in the context of any screen LEFT and RIGHT serve as next and previous these keys are used almost exclusively to navigate around the user data entry fields many screens present Caveats The Ul device may demonstrate a speed limit when it comes to how rapidly the Operator may actuate keys and still g
34. mmands send in one string is 8 Max number of character that can be read received at once is 100 Correction section 7 5 3 Updated description paragraph Table of Contents be Ree EE 1 SM el de EE 1 E2 WTS Ee EE 2 n B DR A Ee 3 1 4 CB Eier 4 1 5 Technical S PSCHIGAUOMS egene 5 1 6 Safety Precautions a goZ 22022 ee 6 T Ce EE D gt Tln ue 6 1 Repacking for shipment AAA 6 2 System Layout TTT 7 201 Front Panel bayouteccc st ces ook aoe oe aoe ons coe on cols aa 7 2 2 Rear RE sl areire iae an ea Tea Tan Taaa TE TAa TEE TAa TEA Te TEA TAAA E Eea 8 2 3 Mop View eT ct bonis fd hit nirani a ia a Dd dd bed ad Dd dd be 9 24 JRF configurati EE 10 F CORMECUOMN EEN KEE EE KEE EEN EENS dees 11 3 1 Power Connection EH 11 Ka fa WW le AJA E 11 3 12 LIME Power COnN e EECH 11 3 1 3 Line Fuse Replacement eee eee EE 11 3 2 eise e lt il edel E 12 3 3 RS232 ETH 13 3 4 CAN Bus LEET eege EE 14 30 GPIB Control EE 15 3 5 1 GPIB Control Connector loses EENEG 15 KR NN e le E 16 35 3 Data Lines cevag E 16 3 5 4 Handshake EE 17 3 5 5 Interface Management Lines sese eee eee 17 0r USB PO ee e ENEE 18 4 Configuring the Matrix for Operation 19 4 1 Matrix Configuration sss sese eee eee eee eee 19 4 2 Dow Key CAN bus switches sss sese eee eee 19 4 3 Adding and Deleting Switches 2 cccccccecceeeceeeeeeeeteeeeeeeeeeeeeeeseeeeeeeteeeeneetees 20 gt Manual LOCAL Operation ss seca eien a tccacd EE ENEE 22 5
35. moved from the Configuration THE MATRIX MUST BE POWER CYCLED AFTER MAKING ANY CHANGES TO THE CONFIGURATION BEFORE THOSE CHANGES BECOME FULLY APPARENT NOTE Keep unused switches stored as 0 switches Label switches that are dedicated to particular CAN Bus IDs on the switch s enclosure 20 Configuring the Matrix Example procedure Before adding it to the Configuration you need to find the switch s ID To do this select Main Menu gt System Settings gt Find Switch ID and then follow the instructions in Section 5 2 3 Find Switch ID If the switch s ID found is the one desired to add Press the BACK key until you see the Main Menu screen To ADD the switch select Main Menu gt System Settings gt Add Switch The LCD will indicate if the switch to add is a 0 switch and then prompt the user with the next available to configure ID or the user may enter a different un configured ID If the switch s ID is not zero the LCD will prompt you to add the next available to configure ID and you must enter the connected switch s ID If the switch s ID found is NOT the switch you wish to add Example In order to change a switch s ID from N x to N y it must first be reconfigured as a zero switch To do this Make sure the N x switch is connected AND that NO OTHER N x SWITCHES ARE CONNECTED Select Main Menu gt System Settings gt Delete Switch Enter the ID N x of the connected switch and its ID will be set to 0 Briefl
36. ned and reserved for legacy purposes only SYST ERR Result was 3 TOO MANY COMMANDS check for more errors Description The maximum of 220 characters per command line has been exceeded SYST ERR Result was 4 SYNTAX ERROR check for more errors Description There is a misspelling in your command or a non numeric character was included in a command where a number should have been or use of unrecognized symbols such as amp etc SYST ERR Result was 5 DATA OUT OF RANGE check for more errors Description The value transmitted is not acceptable Eg 1 A non existing switch positions has been commanded Sending Route Switch1 8 When switch 1 is a SP6T 6 position switch Eg 2 This error code is set if the IP address or MAC address is an invalid one Sending SYSTEM IPADDRESS 55 57 2 would generate this error code since 4 numbers are required for a valid IP address SYST ERR Result was 6 ILLEGAL PARAMETER VALUE check for more errors Description This error is no longer supported The error code is maintained and reserved for legacy purposes only SYST ERR Result was 7 INPUT BUFFER UNDERFLOW check for more errors Description This error is no longer supported The error code is maintained and reserved for legacy purposes only SYST ERR Result was 8 MATRIX SOCKET NOT AVAIL check for more errors Description This error is no longer supported The error
37. non volatile memory the state of the positions of all switch ID s configured to the matrix saved as 1 through 30 and set the positions of those switches Clear Positions Cause all switches configured to the matrix to assume their default position For most switches this is position O open positions Note that all Dow Key switches have open defined but not all switch types have an actual open position such as a transfer switch In this case open means close on its default position 1 Cycle Positions Step all switches configured to the matrix through all of their positions NOTE the Cycle Position function is intended for use at the Dow Key factory during the assembly process In fact the Cycle Position function will generate errors when commanding a Transfer switch to switch from position O to position 1 which may be ignored For this reason the Operator is discouraged from exercising Cycle Positions 25 Manual LOCAL Operation 5 2 2 Error Operations View the contents of the Error Log see Section 7 5 1 Each entry is displayed with the oldest being first First In First Out showing the Error Record Number its place in the Error Log an associated Error Code an associated Error Data and a text explanation of the Error The Error Data contains various parameters associated with certain Errors For instance an Error Code 10 Switch Did Not Respond will show the offending switch ID in the Err
38. not place devices into remote control mode REN only enables a device to go into remote mode when addressed to listen When in remote mode a device should ignore its local front panel controls The SRQ Service Request line is like an interrupt it may be asserted by any device to request the Controller to take some action The Controller must determine which device is asserting SRQ by conducting a serial poll The requesting device releases SRQ when it is polled USB Port Connecting the matrix to a PC s USB port should result in a Found New Hardware event Follow the instructions until prompted for the new hardware device s driver which may be located on the CD shipped with the matrix After installation the matrix s USB port will appear as a virtual serial port Communicate to this port as you would on any RS 232 serial port The baud rate is 9600 b s See sections 3 3 and 7 for more details 18 4 1 4 2 4 Configuring the Matrix for Operation Matrix Configuration The brain inside Dow Key Matrices referred to as the Matrix Controller has been designed to be as generic as possible in regards to how many switches and what positions it may control Therefore the matrix must first be informed as to the set of switches it is able to control before it can operate successfully and this information must be updated as switches are added and deleted to the matrix or connected to the CAN bus port on the rear of
39. nspection The Matrices were carefully inspected both electrically and mechanically before shipment After unpacking all items from the shipping carton check for any obvious signs of physical damage that may have occurred during transit Report any damage to the shipping agent immediately Save the original packing carton for possible future reshipment The following items are included with every Model matrix order e Switch matrix e Switch matrix Operation Manual e Power Cord Part Number 40203 005 Maintenance The matrix requires no periodic maintenance Should any problems arise contact Dow Key Microwave immediately for necessary repairs These systems are not field repairable Repacking for shipment Should it become necessary to return the matrices for repair carefully pack the unit in its original packing carton or the equivalent and follow these instructions e Call the Repair Department at 1 805 650 2327 for a Return Material Authorization RMA number e Advise as to the warranty status of the matrix e Write ATTENTION REPAIR DEPARTMENT and the RMA number on the shipping label 2 System Layout 2 1 Front Panel Layout Figure 2 1 shows the 1U Model general layout which includes e 2 handles e Three LED LCD and keypad ke 19 00 18 31 O Desen duis RA L gp Sas Microwswe REMOTE Q H JOL 1 25 1 72 O EGER company ERROR O KS d O Figure 2 1 1U Front Panel Layout System La
40. ny others connected to the internal master matrix controller See Section 4 for more information Care must also be taken to limit the internal power supply s current draw on the 12 VDC to a maximum of 7 Amps Note that this includes all switches of the master matrix and the extension matrix combined If the total current draw is below 7A the extension matrix s switches will be powered by the master matrix thru pins 1 and 4 In cases where the total current exceeds 7A the extension matrix needs to have its own internal power supply In these cases the interconnection cable shall only use pins 2 and 3 for the CAN bus communication Figure 3 3 and Table 3 3 show the pin numbers and functions for the CAN Bus connector Figure 3 3 CAN Bus Connector Pin Numbers The mating connector is Deltron 701 0400 The pin outs embossed on connector faces are 1 12 VDC 7A max this current is for master and extension matrices combined See 2 3 Individual switch data sheets for current draw CAN LO CAN HI 4 12 VDC Return GND Table 3 3 CAN Bus Connector Pin Functions 14 3 5 3 5 1 Connections GPIB Control Connection On the rear panel of the matrix is a GPIB IEEE 488 control port which gets connected to the GPIB port of a computer controller using a shielded IEEE 488 interface cable with metric mounting screws Figure 3 4 shows the connector configuration and Table 3 4 shows the signal assignments
41. or Ex 3 Route Switch1 8 Switch2 5 Switch3 2 Error Timeout 2 status When linking multiple commands the maximum number of transmitted commands to the matrix in one message string is 8 When reading responses from the matrix the maximum number of characters that can be received read is 100 characters Commands related to the GPIB controllers registers can NOT be concatenated These commands are ESE ESE ESR STB SRE SRE All messages are in ASCII format numeric values are represented in decimal format with exception of the MAC address which is expressed in hex format Timing sequences and action requirements are only shown where applicable and are under the TIMING sub paragraphs on each command description For RS232 and USB communication Any string returned by the matrix is terminated with a carriage return 0x0D followed by a line feed 0x0A e g ROUT SWIT2 r n will return Trin Where r stands for carriage return 0x0D and n stands for line feed 0x0A For GPIB communication no ASCII termination is required but the End Or Identify EOI line shall be asserted at the end of each command 35 Remote Operation Common Commands The following contains the IEEE 488 2 common commands of SCPI that the GPIB controller is compatible with The possible error codes assume that the correct syntax is used and in case of a multiple command string the string is not
42. or Data field Once a particular Error has been logged no further occurrences of it will be entered For instance multiple subsequent misspelled Commands would not result in multiple Syntax Errors being logged until the original entry was cleared As each error is being read displayed locally or queried remotely it will also be removed always clearing the oldest remaining entry from the Error Log Entries in the Error Buffer are removed by successive presses of the up or down arrow keys The Error LED will illuminate green when the Error Log is empty unless a persistent error condition exists such as a Power Supply failure that remains failed 26 Manual LOCAL Operation 5 2 3 System Settings System Settings Menu Important Note The matrix controller is designed to offer the maximum expandability and flexibility possible and therefore has features common to other Dow Key matrix models The here described Add Delete and Find Switch ID features are some of those that although available and fully functioning should only be used if needed and appropriate Switches may be added and deleted from the Matrix Configuration using these commands For those matrix models with a custom or fixed RF configuration in other words where the internal RF switches and its connections are defined on a custom bases or are established and fixed by design no switch shall be added or removed from the matrix configuration
43. ound 13 DIO5 Data 14 DIO6 Data 15 DIO7 Data 16 DIO8 Data 17 REN Management 18 GND DAV Ground 19 GND NRFD Ground 20 GND NDAC Ground 21 GND IFC Ground 22 GND SRQ Ground 23 GND ATN Ground 24 SIGNAL GROUND Ground Data Lines The lines DIO1 through DIO8 are used to transfer addresses and to control information and data The formats for addresses and control bytes are defined by the IEEE 488 standard Data formats are undefined and may be ASCII with or without parity or binary DIO1 is the Least Significant Bit note that this corresponds to bit 0 on most computers 16 3 5 4 3 5 5 Connections Handshake Lines The three handshake lines NRFD NDAC DAV control the transfer of message bytes among the devices and form the method for acknowledging the transfer of data This handshaking process guarantees that the bytes on the data lines are sent and received without any transmission errors and is one of the unique features of the IEEE 488 bus The NRFD Not Ready for Data handshake line is asserted by a listener to indicate it is not yet ready for the next data or control byte Note that the Controller will not see NRFD released e ready for data until all devices have released it The NDAC Not Data Accepted handshake line is asserted by a Listener to indicate it has not yet accepted the data or control byte on the data lines Note that the Controller will not see NDAC released i e data accepted until all devi
44. ries until the current commands have been processed by the parser 41 Remote Operation 7 5 7 5 1 System Commands The following contains the SCPI system commands that the GPIB RS 232 and USB control is compatible with SYST ERR Syntax SYSTem ERRor Description Query the instrument s error queue A record of up to N errors is stored in the instrument s error queue Errors are retrieved in first in first out FIFO order The first error returned is the first error that was stored Each additional error up to N is read by N subsequent queries one for each error For this instrument N 20 The error queue has to be read until no more errors are returned otherwise the error status is not cleared Note Some of the listed error codes are here for backwards compatibility with legacy products and other are reserved for future applications Not all error codes are applicable to this matrix Result String with the following syntax code message code Numeric value with the error code 0 if no error Message String with error message 42 Remote Operation Example SYST ERR Result was 1 INVALID CHARACTER check for more errors Description This error is no longer supported The error code is maintained and reserved for legacy purposes only SYST ERR Result was 2 OUTPUT BUFFER OVERFLOW check for more errors Description This error is no longer supported The error code is maintai
45. s have stalled only when this alarm has been enabled at the factory Note Not applicable for most models SYST ERR Result was 52 INTERNAL TEMPERATURE EXCEEDS THERSHOLD check for more errors Description On models with temperature sensors one or more temperature sensors has exceeded its alarm threshold only when this alarm has been enabled at the factory Note Not applicable for most models SYST ERR Result was 53 POWER SUPPLY FAILURE check for more errors Description On matrices with redundant power supplies it will indicate that one of the power supplies does not operate E g Damaged power supply or blown fuse on the power supply Result was ONO ERROR No more errors error queue is empty 45 Remote Operation 7 5 2 SYST SERIALNUMBER Syntax SYSTem SERIALNUMBER Description Returns the matrix serial number Result n Possible error codes None 46 7 5 3 Remote Operation SYST STATUS Syntax SYSTem STATUS Description This command will return all Switch positions Local Remote mode Power supply status High temperature alarm status Fan stall alarm and Errors list separated by a semicolon The status response will reflect ALL items in the matrix while the error portion of the response is limited to the first 20 errors Note 1 Power supply status High temperature alarm status and Fan stall alarm are only returned if enabled Most models do not have redundant power
46. switch to ensure that the positions are closed Only after this internal verification that happens automatically the controller will respond with a 1 to the OPC query and update the error status As a rule of thumb electromechanical switches require approximately 10 15ms to switch position But the OPC query will return a 1 or the error status is updated only after the switches have not only changed its positions but rather also confirmed its position So it is safe to consider some safety margin and expect a response of 1 or an updated error status after about 70ms per switch As an example if 2 switches are commanded wait about 140ms before issuing an OPC query that will return a 1 or issuing an SYST ERR query or issuing a ROUTE SWITCHx query 51 7 6 3 Remote Operation Requesting Switch x current position x switch address Examples e ROUTE SWITCHx e ROUT SWITx e SWITx Result Returns the current position of switch x Possible error codes 10 11 12 13 Timing The timing to execute a command depends on the length of the command in case of concatenated commands In case of switching commands the controller will first command each switch to set its new position and then query each switch to ensure that the positions are closed Only after this internal verification that happens automatically will the controller respond with a 1 to the OPC query and update the error status
47. t transportation prepaid to the Dow Key headquarters Repairs will be made and the product returned within the quoted period of time transportation prepaid Repaired or replaced products are warranted for the balance of the original warranty period or at least 90 days NEITHER DOW KEY MICROWAVE CORPORATION NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF DOW KEY MICROWAVE CORPORATION HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES SUCH EXCLUDED DAMAGES SHALL INCLUDE BUT ARE NOT LIMITED TO COSTS OF REMOVAL AND INSTALLATION LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON OR DAMAGE TO PROPERTY Manual Revision History The revision history shown below lists all revisions and addendums created for this manual The revision level increases numerically as the manual undergoes subsequent updates Addendums are released between revisions and contain important change information that the user should incorporate immediately into the manual When a new revision is created all addendum associated with the previous revision of the manual are incorporated into the new revision of the manual Each new revision includes a revised copy of this history page Revision 1 Document Number 49101 261 see June 2013 Original Release REVISION EEN October 2013 Corrected section 7 3 Max number of concatenated co
48. t address is 9 29 Dees 488 2 Register model 6 1 6 2 6 3 6 4 Introduction to IEEE 488 2 The topics discussed in sections 4 2 to 4 3 are for the most part transparent to the user during normal operation of the matrix These sections are here mainly for informational purpose These sections describe a minimal register model that is required to be able to perform a safe handshaking between the controller and the matrix In the matrix a status system records various conditions and states in 2 registers Each of the register groups is made up of several low level registers called Condition Registers Event Registers and Enable Registers Condition Register A condition register continuously monitors the state of the instrument The bits in the condition register are updated in real time and the bits are not latched or buffered This is a read only register and bits are not cleared when you read the register A query of a condition register returns a decimal value which corresponds to the binary weighted sum of all bit set in that register Event Register An event register latches the various events from the condition register There is no buffering in this register while an event bit is set subsequent events corresponding to that bit are ignored This is a read only register Once a bit is set it remains set until cleared by a query command such as CLS A query of this register returns a decimal value that corresponds to th
49. tch and position numbers Refer to Appendix B to set RF switches in different positions Current Positions View the currently set positions of all switches whose ID s have been configured to the matrix This screen can show a maximum of 12 switches at a time press UP or DOWN to view the next set of a maximum of 12 Note the presentation of switch positions is a one way experience in that the operator can only view successively greater ID s BACK will bring the Operator back to the Switching Menu Remember that a switch position reported as 255 OxFF is meant to mean position unknown and is often the result of a switch not responding to a query for position Note that all Dow Key switches have open defined but not all switch types have an actual open position the switch is not closed to any of its RF ports For most switches open is the default position and is defined as position 0 But for transfer switches there is no open condition hence the default position is pos 1 As a result of this commanding a transfer switch to pos O or pos 1 will have the same result closing it to its default position 1 Switching History View the last 10 switching actions The latest action is presented first Save Positions Save to non volatile memory the state of the positions of all switch ID s configured to the matrix as 1 through 30 24 Manual LOCAL Operation Recall Positions Recall from
50. the matrix see section 3 4 The knowledge of what switches are to be controlled and how many positions each of those switches has is known as the matrix s Configuration Data In addition to switch information the Matrix Configuration also contains other information such as the base MAC address for Ethernet based matrices unit s Serial Number alarm enabling Model Name etc This information must remain intact for the matrix to operate properly The matrix configuration is already performed at the factory and does not need to be done by the user unless the Matrix Controller board has been replaced Adding and removing switches see sections 4 2 3 automatically updates the matrix configuration No further action is required by the user The topics discussed in sections 4 2 and 4 3 are not needed during normal operation of your matrix These sections are here for informational purpose and in the event the RF configuration of the matrix is being modified by adding removing switches Dow Key CAN bus switches A CAN Bus switch may assume a maximum CAN ID of 127 Individual switches delivered by Dow Key will be programmed with either ID 0 or ID 1 depending on the particular procedure utilized to manufacture the switch The matrix provides the means to change CAN Bus ID s at will A CAN Bus switch may have a maximum of 255 positions 0 through 254 255 is reserved as a return value indicating that the switch is either in an erroneous
51. ther instrument command This command returns the same result as a Serial Poll but the Master Summary bit is not cleared if a Serial Poll has occurred Result STB decimal value which corresponds to the binary weighted sum of all bits set in the register Note This command can NOT be concatenated with other commands It must be issued as a single command 40 Common Commands 7 4 10 SRE Syntax SRE lt enable_value gt Parameters Enable_value Value that corresponds to the binary weighted sum of the bits you wish to enable in the register Description Enable bits in the Status Byte enable register To enable bits in the Status Byte enable register you must write a decimal value that corresponds to the binary weighted sum of the bits you wish to enable in the register Note This command can NOT be concatenated with other commands It must be issued as a single command 7 4 11 SRE Syntax SRE Description The SRE query returns a decimal value which corresponds to the binary weighted sum of all bits enabled by the SRE command Result Returns a decimal value which corresponds to the binary weighted sum of all bits enabled by the SRE command Example SRE Result was 16 Note This command can NOT be concatenated with other commands It must be issued as a single command 7 4 12 WAI Syntax WA Description This command prevents the instrument from executing any further commands or que
52. too long If these conditions are not met any given command can generate these error codes 3 4 30 7 4 1 CLS Syntax CLS Description This command is used to clear the event register in all register groups 7 4 2 ESE Syntax ESE lt value gt Parameters value Decimal value which corresponds to the binary weighted sum of the bits you wish to enable in the register Description Enable bits in the Standard Event Status enable register The selected bits are then reported to the Status Byte register To enable bits in the Standard Event Status enable register you must write a decimal value that corresponds to the binary weighted sum of the bits you wish to enable in the register Note This command can NOT be concatenated with other commands It must be issued as a single command 36 Common Commands 7 4 3 ESE Syntax ESE Description This query allows the user to determine the current contents of Standard Event Status enable register The value returned corresponds to the binary weighted sum of all bits enabled by the ESE command Note This command can NOT be concatenated with other commands It must be issued as a single command 7 4 4 ESR Syntax ESR Description This query allows the user to determine the current contents of Event Status register Reading the Event Status Register clears it The status is returned as a decimal value which corresponds to the binary weighted sum o
53. y disconnect and reconnect the switch to allow the switch s internal firmware to reboot with its new ID as 0 Now the process to add the switch as N y may be executed via Main Menu gt System Settings gt Add Switch Deleting a switch from the matrix configuration data does not require the switch to be connected When a switch is deleted while connected its ID is returned to 0 If it is not connected it is still removed from the Matrix Configuration Data 21 5 Manual LOCAL Operation 5 1 The Keypad LCD Interface Power On Position the rocker switch on the rear panel of the Matrix to the ON position Figures 2 2 to turn on the matrix Note The booting sequence will last about 15 seconds The LCD can appear blank during this time The figure above shows the LCD Keypad sometimes referred to as the User Interface or UIT at the top level of UI screens The COMM LED should normally be blinking green as an indication of normal program execution The REMOTE LED normally dark will illuminate green when the matrix is in REMOTE Mode The ERROR LED normally green will illuminate red upon the occurrence of an error event or the persistence of several error conditions see Sections 5 2 1a 5 2 2 and 7 5 1 The LCD in the figure above shows the top level of the operational screen which happens to be a menu the keypad is used to scroll through and select menu items Other screens encountered al
54. yout 2 2 Rear Panel Layout Figure 2 2 shows an example of a 1U model rear panel general layout All models have common parts which include e Power Entry Module with built in Fuse e Chassis Ground Post e 9 Pin D Sub Female RS232 Connector e 4 Pin XLR Female CAN Bus 12V power output Connector e GPIB IEEE 488 25 pin Centronics Connector e USB type A Connector Other parts that are not common to all models are Coaxial RF switches and or RF connectors l ol L ae S G SES 8b o dE G S ole T GES CEET el GND stud Figure 2 2 1U MS series with external switches Rear Panel Layout System Layout 2 3 Top View Layout Figure 2 3 shows the top view layout of all models 17 66 Figure 2 3 Top View of 1U Models System Layout 2 4 RF configuration Refer to appendix B 10 3 Connections 3 1 3 1 1 Power Connection Line Voltage The matrix operates from a line voltage in the range of 110V to 240V ata frequency of 50 or 60Hz Line voltage selection is automatic CAUTION Operating the unit on an incorrect line voltage may cause damage possibly voiding the warranty Line Power Connection Perform the following steps to connect the matrix to line power 1 Connect the female end of the supplied power cord to the grounded AC receptacle on the rear panel 2 Connect th
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