KEI 707 Quick Reference Guide 电路图.pdf

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1、MODEL 707 SWITCHING MATRIX QUICK REFERENCE GUIDE RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 INTRODUCTION This quick reference guide cOntai”S deScripfio”S Of Various features and information concerning the operation of the Model 707. Also included are programming examples using “alio”S controlle

2、rs. 01988, Keithley Instruments, 1C. Instruments Division Cleveland. Ohio, U.S.A. Document Number: 707-903-01 Rev. A RadioFans.CN 收音机爱 好者资料库 TABLE OF CONTENTS SAFETYPRECAUTIONS . 2 FRONT PANEL FAMlLlARlZATlON . 3 OlSPLAY MESSAGES, . 18 REAR PANEL FAM,L,ARlZATlON. . 20 ,NSTALL,NG AND REMOVING CARDS .

3、 25 MASTER,SLA”E SYSTEMS . 27 BASIC SWITCHING OPERATION. . 30 Selectins Make/Break and Break/Make Rows 31 Modifyilg a Relay Setup . storing Setup and Sending to Relays . IEEE-488 PROGRAMMING . Device-Dependent Commands . oata Formats . Hit Key Commands . SRO Mask and Serial Poll Byte . staws Words.

4、. PROGRAMS ,.,.,. IBM PC/XT/AT with CEC PC 488 IBM PC,XT,AT with CEC PC ,488 and ASYST HP Mode, 9000 series 200,3OO. 57 SAFETY PRECAUTIONS 2. Inspect the connecting cables and test leads for possi ble wear, cracks, or breaks before each use. 3. For maximum safety. do not touch the test cables or any

5、 iktrumenfs while power is applied to the circuit under test. Turn off the power and discharge any capacitors before connecting or disconnecting cables from rhe InmiX car*. 5. Da not exceed the maximum allowable input of the matrix cards. as defined in the specifications and operas tion sections of

6、their manual. 2 FRONT PANEL FAMILIARIZATION POWER AC power switch turm the unit on or off, 3 CROSSPOINT DISPLAY GROUP MEMORY-Displays a stared relay setup (from location shown in MEMORY STEP field) on the crosspoint display and lights the MEMORY indicator. RELAYlOisplays the current relay setup an t

7、he crosspoint display and lights the RELAYS indicator. CROSSPOINT DISPLAY MODIFIED-Lights when changes are made to the crosspaint display (by front panel keys or light pen), making if different from the original configuration. COPY DISPLAY-MEMORY-Capies the displayed cross- point configuration to th

8、e location shown in the MEMORY STEP field. 4 COPY DISPLAY-RELAYS-Copies the displayed crosspoint configuration to the relays. AUTOMATIC (COPY DISPLAY-RELAYS)-When this LED is lit. any change to the crosspoint display is sent to the relays at the same time. The pushbutton toggles the LED on and off.

9、ITo affect chanae in memarv, displav must be copied to memory. SCROLL GROUP SCROLL A-If MEMORY indicator is lit, increments MEMORY STEP field and displays setup on crosspoint LEDs. If RELAYS indicator is lit. increments RELAY STEP field, displays setup on crosspoint LEDs, and sends setup to relays.

10、Also used for scrolling up through a list of multiple choice parameters. SCROLL .-Same actions as the SCROLL A key except that if decrements and SCrdS down. INSERT-Inserts a blank serup at the location shown in the MEMORY STEP Field. Moves higher stored setups up one memory location. DELETE-Deletes

11、the setup at the locafion shown in the MEMORY STEP field. Moves higher stored setups down one memory location. MENU r MEN” 0 00 I Message EXT TRIG FALL EXT TRIG RISE MATRIX RDY LO MATRIX RDY HI STANDALONE MASTER IEEE-488 nn HWSETL nnn mS n cccc SELF TEST FACTORY NIT I Item Description I view digital

12、 input. program digital output. Select which edge of external trigger pulse triggers Model 707 (falling or rising). Select matrix ready output level (active LO or HI). Select stand-alone OI master, l.we operation. Program IEEE-488 bus address. View longest relay Ihardware) settling time of cards in

13、system. View slot number Ini and card label tcccc,. EYeCUte Self test. Return to factory defaults. ,All stored SetUpS a,0 cleared., Programmable parameters can be changed with the SCROLL or data entry keys and then pressing ENTER. 7 SETTLING TIME-Displays the current value of programmed settling tim

14、e. (This delay begins after the relay seftling time.1 To change the value. enter between 0.65000msec and press ENTER. MAKE/BREAK-Selects rows to operate as make/break (make-before-break) for all setups. First enter row desigrw fion IA-H), then press MAKE/BREAK fo roggle the state for that row and im

15、mediately reprogram the Model 707 for the new operation. BREAK/MAKE-Same action 8s MAKE/BREAK except that it selects break/make (break-before-make) rows. ISelecting a row for break/make de-selects it for make/break and vice versa.) 8 LOCAL When in remote WEMOTE on). return the Model 707 to local mad

16、e (REMOTE off). If restores operation of other front panel onfrols unless LLO llocal Lockout) is in effect TRIGGER GROUP ENABLE-Toggles between triggers enabled and triggers disabled. When triggers are enabled. the LED is lit. SOURCEPDisplays current trigger source. Use SCROLL keys 20 display source

17、s, then press ENTER to select the desired source: TRIG ON TALK IEEE-488 talk command TRIG ON GET - IEEE-488 GET command TRIG ON X - IEEE-488 X command TRlG ON EXT - External trigger pulse (rear panel input) TRIG ON KEY -Front panel MANUAL key only MANUAL-Generates a trigger from front panel if trigg

18、ers are enabled (no matter which trigger source is selectedl. If the trigger source is TRIG ON KEY. only the MANUAL key generates a trigger DATA ENTRY ASH, O-S-These keys are for entering row/column addresses and setup locations, selecting make/break and break/make rows, and entering various numeric

19、 values. CANCEL-If the value in the alphanumeric display has been modified, this key restores the currenf parameter value. If the velue in the alphanumeric display has not been modified, this key returns the Model 707 to the previous display. CANCEL also exits from menu mode if no changes have been

20、made. ENTER-If the value in the alphanumeric display has been modified, pressing this key stores the parameter value. Also invokes immediate action items from the menu and exits menu mode (except when digital 110 is displaYedI RESET LI: Performs the same functions as cycling power Call relays are op

21、ened. triggers are disabled. RELAY STEP to 000, MEMORY STEP fo 001, etc.). except powerup self-checking and masterislave loop initieliration. CLEAR, OPEN, CLOSE CLEAR-Turns Off a, crosspoint display LEO% If the AUTOMATIC ICOPY DISPLAY-RELAYS) indicator is lip. all relays are opened immediately. OPEN

22、 -Turns off rcmpoint LED of row,column shown on alphanumeric display. If the AUTOMATIC (COPY DISPLAY- RELAYSI indicator is lit. the corresponding relay opens immediately CLOSESame action as OPEN key except that it turns on the crosspoint LED and relay. ALPHANUMERIC DISPLAY pziizzs A Wcharacter displ

23、ay that can show: . Error messages. l Menu item selections. . Last setup sent from memory to the relays (RELAY STEP field,. IEEE-488 STATUS INDICATORS These three LED indicators apply to instrument operation over the IEEE-488 bus. The TALK and LISTEN indicators show when fhe unit has been addressed

24、to talk or listen. REMOTE turns on to show when the unit is in the IEEE-488 remote State. CROSSPOINT DISPLAY LEDs Show open and closed crosspoinrs of the CUllem relay setup, a stored relay setup, or an edited relay setup. Each LED block of 8 rows by 12 columns shows on/off states of one card. States

25、 can be changed by front panel keys. trig- gers. or optional light pen. Crosspoint configurations can be stared in memory or sent to relays. MAKE/BREAK and BREAK/MAKE LEDs MAKE/BREAK ROW LEDs-Shows which rows are selected for mskeelbreak operation. The LEDs can be turned on or off by the MAKE/BREAK.

26、 BREAK/MAKE keys or an o,tional light pen. BREAK/MAKE ROW LED*-Same function as MAKE, BREAK row LEDs except for showing which rows are selected for break/make operstion. Note thaf selecting a ,a., for break/make de-selects it for make/break and vice versa. 16 LIGHT PEN r An optional input device for

27、 toggling the on/off state of the Crosspoint Display LED*. MAKE/BREAK row LEDs. and BREAK/MAKE row LEDs. One light pen is used to control the LEDs of up to five Model 707 mainframes. DISPLAY MESSAGES Table 1. Additional Messages Message CARD ID ERROR IDDC IDDCO ,N”ALlD lNPtJT M/S ERROR M,S LOOP DOWN

28、 NOT IN REMOTE Description Checksum test failed on one or more matrix cards. Invalid device-dependent command. Invalid device-dependent com- mand option. Light pen button pressed wher pen was not painted at WOSS point LED or make/break or breakimake LED. Error in master/slave communi- cation loop fo

29、verrun. parity, framing. count imbalance, or time-out). One or more units connected in masrer,sla”e loop are “Of powered u,. “x” character received over IEEE-488 bus b”t Model 707 is not in remote. Table 1. Additional Messages (Cont.) SETUP ERROR TRIG OVERRUN Descrfptlon Additional trigger received

30、before programmed settling time expired (trigger is wocessed). Self-test detected error in RAM. Self-test detected checksum error in ROM. Self-test detected checksum error in stared setup. An additional trigger was received before the Model 707 asem the READY signal. “Message remains displayed until

31、 next operation. REAR PANEL FAMILIARIZATION CARD SLOTS The Model 707 accepts up fo six plug-in matrix cards 18 rows by 12 colurnns per mainframe MASTER/SLAVE MASTER/SLAVE OUT-An S-pin DIN connector for connec- ting a cable to the next mainframe in a master/slave daisy chain configuration. MASTER/SLA

32、VE IN-An S-pin DIN connector for connec- ting a cable from the previous mainframe in a master/slave daisy chain configuration. 20 BNC JACKS EXTERNAL TRIGGER INPUT-A BNCjack for applying a trip ger pulse to change to the next relay setup. if triggers are enabled and TRIG ON EXT is selected as the sou

33、rce. Pulses must be TTL-compatible. negative- or positive-going lselected by a menu item). with a duration greater than 600nsec. MATRIX READY OUTPUT-A BNC jack providing a TTL- compatible, high- or low-true level (selected by a menu item). If goes false when relays are switched and goes true after t

34、he sum of the relay settling time and the programmed set- fling time. RELAY TEST A G-pin quick-disconnect terminal block with logic ground and four logic inputs for testing crosspoint relay closures. Wiring between this terminal block and rows A and B of any card in the group of cards to be tested i

35、s necessary for the test. Test connections are detailed in the card rnals. DIGITAL I/O r L A DB-25 connector for the TTL-compatible digital I/O with data lines for eight inputs and eight outputs. It also con- 22 rains control lines 0, handsnaking r,nput Latch ana cl”T put Strobe). Input lines are vi

36、ewed and output lines are pro- grammed through a menu item IEEE-488 INTERFACE This connector interfaces the Model 707 to the IEEE-488 bus. IEEE-488 interface function codes are marked adja- cent to the connector. 23 AC POWER LINE VOLTAGE SELECTED-The position of this switch determines the operating

37、voltage range of the instrument: $0.1lOV. 105.125v, or 180.22ov. 210.25ov. AC RECEPTACLE-Power is applied through the supplied power cord to the S-terminal AC receptscle. LINE FUSE-The line fuse provides protection for the AC power line input. The fuse rating mu% match the line voltage semng. 24 INS

38、TALLING AND REMOVING CARDS Figure 1. installing a Card WARNING Turn 0” matnfmme power and dkonneet the he cord before Installing or removing cards. CAUTION CAUTION DO not touch the card surfaces, con”ecton, or DO not touch the card surfaces, con”ecton, or components to avold contamlnatlo” that could

39、 components to avold contamlnatlo” that could degrade card pertormance. degrade card pertormance. 1. Ensure that the access door on top of the mainframe is fully closed and lacked down. (The bottom side of the access door has card guides.1 2. Remove the slot cover from the desired slot. 3. With one

40、hand grasping the cards handle, and the other supporting its weight. line up the card with the card guides in the slot. Ensure that the component side is fac- ing the fan of the mainframe. 4. Slide the card into the mainframe until it is fully seated in the backplane connectors. Finger-tighten the s

41、pring- loaded mounting SCW.VS at the back of the card to lock it in o,ace. WARNING The mounting screws must be secured to ensuw a proper chassis gmund connection between the card and the mainframe. Fallurn to property secure this ground connectlo” may result in per- sonal inJury or death due to elec

42、tric shock. 5. To remove a matrix card. first turn off the mainframe and disconnect the line cord. Ensure “a voltage is applied from the uer circuit. Remove any infernal cabling between cards through the units accept door. Loose” the spring- loaded mounting screw and pull out the card by its handle.

43、 26 MASTER/SLAVE SYSTEMS A method of expanding a matrix with multiple mainframes is tO connect up to five units in a masterlslsve configura- tion. This is done by connecting the rows of like cards in separate units and by connecting the units in a closed loop of OIN cables for communication and canf

44、rof. A masterislave system configuration appears as one unit with expanded card capacity. That is. only the master unit is ad- dressed by the IEEE-488 bus CO”,O,B, and controlled from the front panel. A mesterhlsve configuration extends matrix rows yielding a long, narrow matrix. Figure 2 shows the

45、connections bet- ween two units having Model 7071 cards. With five units. the maximum matrix size is 8 rows by 360 columns. Table 2 shows the column assignments for the maXimm configuration. If the mainframes of a master/slave configuration contain different card models, group like csrds 8s much as

46、possi ble. This will reduce the need to extend the analog buses with exfernsl cables. 27 Flgure 2. Example of Master/Slave Interconnect Cables 28 D Table 2. Master/Slave Columns unit 1 Master 2 Slave 1 3 save 2 4 Slave 3 5 Slave 4 Slot 1 2 3 4 5 6 1 2 3 4 5 6 1 z 4 5 6 1 : 4 : 1 2 3 4 5 6 Columns (l

47、-12) I-12 13.24 26-36 37-46 49-60 6172 73-64 65-96 97-108 109-120 121-132 133-144 145-156 157-166 169-160 161-192 193-204 205-216 217-228 229-240 241-252 253-264 265-276 277-286 289-300 301-312 313324 325-336 337-348 349-360 29 BASIC SWITCHING OPERATION The following paragraphs will take you through

48、 a simple, general, step-by-step procedure to edit a matrix setup, store it in memory. and send the setup to the relays. Althwgh ihe steps are described with front panel operations. the pro- cedure can be performed over the IEEE-488 bus. Figure 3 shows the setup data paths for these steps. Figure 3. Setup Data Transfers 30 Selecting Make/Break and Break/Make ROWS Select make-before-break, break-before-make. or dont care operation for the rows. The