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Trio LA-1910 Operator's Manual

Gp-ib bus analyzer
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L A - 1
910
GP-IB B U S A N A L Y Z E R
OPERATORS MANUAL
T R I O

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Summary of Contents for Trio LA-1910

  • Page 1 L A - 1 GP-IB B U S A N A L Y Z E R OPERATORS MANUAL T R I O...

  • Page 2: Table Of Contents

    CONTENTS OPERATION••••>—>••••••—•••••MawnitM"i TfTittTT^T* ' ' ' ' 12 F E A T U R E S — POWER .ON P R O C E D U R E APPLICATIONS MEMORY M O D E . GENERAL A U T O R E C E I V E MODE SPECIFICATIONS A U T O SEND MODE PRECAUTIONS FOR U S E...

  • Page 3: Applications

    APPLICATIONS FEATURES • Bus data may be displayed in binary and hexa-decimal • Checking G P - ' B system hardware representations. • Input and output memories of 5 1 2 bytes each are provid- • Debugging GP-IB system software ed separately.

  • Page 4: Precautions For Use

    Word lengths might get damage. Input memory: 16 bit b. Do not use the LA-1910 In an environment where the Output memory: 1 3 bit specified operating temperature and humidity ranges ore P O W E R S U P P L Y exceeded.

  • Page 5: Switches And Indicators

    SWITCHES AND INDICATORS < FRONT PANEL > Fig. D A T A DISPLAY LEDS IPC: IntefFece Clear T h l » indicates iho data held In a memory location or REN: Remote ENatee monitored from the bus in hexa-decimal IOOH to FFH). A T N : ATtemtoN ADDRESS DISPLAY LEDS EOI: End Or Identify...
  • Page 6 R g . 3 OAV: DA:3 Vol d 03 MOOE K E Y - S W I T C H E S ¢ ) POWER SWITCH & DISPLAY LED These select an operating mode. Depraii this switch to turn on power. T h « LED lights, in- MEM/ESC: Memory/Escapo mode.
  • Page 7 The contents of the ouptut memory AODR; Address sot. which are prepared in advance may be This function sets o memory address. sent out to the GP-18 bus. <@| MEMORY A C C E S S KEY-SWITCHES MANU R C V E : Manual receive mode. These keys are used to read data from or wiito data In Three-line handsh3ko will be performed the memory In Memory mode.

  • Page 8: Rear Pane! - 1

    < R E A R P A N E L > F?g. 4 © GP-IB CONNECTOR then turn on again for recovery. Twonty-four-pin, IEEE-488 bus compatible connector. GROUND TERMINALS <J$ PRINTER CONNECTOR SIGNAL GND: This connects to the ground line of ihe This permits connection to a printer with the Centronics Internal circuits.

  • Page 9: Function Description „ 1

    FUNCTION DESCRIPTION becomes active. Three-line handshake is not performed. The L A - 1 9 1 0 has following six operating modos. The L A - 1 9 1 0 displays the data read from the GP-IB bus on (o| Memory mode data display LEDs (0 and t_>, control signal display LEDs ©...

  • Page 10: Manual Send Mode

    Avoid connecting and disconnecting the A C coble when it Is supplying power to the LA-1910. M A N U A L S E N D M O D E • As to the printer, connect it to the L A - 1 9 1 0 bofor« tur- This is the mode to send interface signals and data out to the ning on power.
  • Page 11 changed. ~r.g > / E ' . V E 5 C > « - y T i / be pressed to suspend J function of Memory moo* or operation in another mode and return to Memory mode. [See Section. Mode transi- tions.) tb) ADDRESS S E T Press the £...
  • Page 12 <lndteauoo> < K « v tfliry saqu«f>ce> (c) DATA S E T Press the IDATAI koy of memory mod* function key- OATA switches 0 . and lis koy-top LED lights, indicating the selection of the Data set function, Than data may bo entered with data entry kaya © . The data display LEDs ©...
  • Page 13 <Key entry sequence > < I r i-icnl.cn * Memory AM CJear > For the Data set function. m e f T T l f Y of the data entry DATA . ' . J AGCfiES£'Tfi:C key-switches 55 performs a special (unction. Press the I x ifcev.
  • Page 14 * Sampling Condition Sot 1) Only OAV serves as the sampling trigger signal. Sampling condition AODRESS'TRIO 2) DAV. NRFD. NOAC, I F C , REN, A T N . EOI. and SRQ serve a s the sampling trigger signals. Sampling eofidrtwn...
  • Page 15 <Koy entry scquonco> * Trigger Data Sot C O O S Enter the data of 010 with keys a n d Q l Data display LED © 0 1 appears green, dark, end red respec- fxlfol Tho last eight bis en l tied effective.
  • Page 16 U S T MEMORY Press the | LISTf key of the memory mode function fcey- swiiches © , ihen its key-top LED lights, indicating the selection of the List memory function. If no printer is connected or tho printor connected is off- line, error results with the address and data display LEDs blinking to Indicate thot the List memory function is not selected.
  • Page 17 * List Memory AO < Indication > <Koy antry sequence> AM com ems o* the input memory (OOO through I F F ) may bo printed out. A O D R E S S / T A J C As soon as thetxjfcey is pressed, the address display LED gets cJeared to "...

  • Page 18: A U T O R E C E I V E Mode 2

    A s soon the offect of pressed key will be repeated as such a data has come in, the LA-1910 starts to read automatically. At this time, repetition speed rises after In data, triggered by the designated sampling condition, executing the effect four times.

  • Page 19: A U T O Send Mode 2

    If no GP-I8 bus connector is connocted or both the Nolo that the l3st data which is rend in Is that which Im- NRFD and NDAC lines are at " H " level at this time, the mediately precedes the data that is the same as the trig- address end data display L£Os blink to warn of error ger data.

  • Page 20: Manual Send Mode

    the G P - I S bus. EXIT FROM MANUAL RECHVE MODE AND TRANSI- TION TO ANOTHER Press thelMEM/SSCJkey © to return to Memory mode. Direct transition to Auto receive mode is also possible. MANUAL SEND MODE Press tho |MANU SEND] key of tho mode keys-switch DATA ©...

  • Page 21: T R A C E Send Mooe - 2

    (b) CONTROL SIGNAL S E T T R A C E S E N D M O D E Press tha ITRC SENCp key of the mode keys-switches © , then its key-top LED lights, indicating the selection A pulse (& 100 JJSQC) is sont out whan tho hoy has been of Trace send mode.

  • Page 22: Mode T R A N S I T I O N

    M O D E T R A N S I T I O N S FIguro 16 shows possible made transitions. POtVcR COJ MODE AUTO AUTO MAMU HOVE RCVE SEND SEND MODE MODE MODE MODE MOOE Fig. 16 Mode Transition Diagram...

  • Page 23: S A M P L E O P E R A T I O N

    SAMPLE OPERATIONS oP-ia R E C E I V E M O D E Let us take a case that a controller sends characters to a GP-13 GP-IB printer, and wo monitor tho signals transmitted using the L A - 1 9 1 0 . Figure 1 7 shows the devices set up cp-m ConuoRar (or this purpose.

  • Page 24: R E C E I V E Mode 2

    (address 1FFH) of tho Input memory is fill- ed. Then the L A - 1 9 1 0 returns to Memory mode. 11) In this'mode, the LA-1910 accepts no key opera- tions other than unconditional exit from Auto receive mode.
  • Page 25 < K e y entry sequence> (b| TRIGGERED S T O P The only difference from ihe triggered start operation is that Trigger stop should be selected in step 14) above. Fig. 2 0 (el WITH NO TRIGGER CONDITIONS The only difference from the triggered start operation is that Trigger clear should be selected In step 4 ) of (a).
  • Page 26 SEND MODE Let us consider an example that the L A - 1 9 1 0 sends OP-IS characters to a GP-IB printer. Figure 2 3 shows the devices LA-ISIO • r i r i ' r / set up for this puiposo. Fig.
  • Page 27 <Key entry sequence > 7} Place tho abovn data Into the output memory. 8} Repeat the above two Maps to write data, which are to be sent out, into tha memory locations. 9) When data have been written In the memory, exchange the contents of the input and output memories again.
  • Page 28 < K e y entry sequence> T R A C E SEND OPERATION Perform steps 1 through! 11 of Section of Auto send opera- tion. 1 ) Select Trace send mode. 2) Every time you prea3 the I D A V J key, the L A - 1 9 1 0 per- forms three-line handshake and sends out data, byte by byto.
  • Page 29 IEx. To id "3Ftf *.) 4] Sot a data. S) You may press the I DATA] key to check the data Just entered. 61 You may press the [WR INC) key to see the data put on the GP-IB bus, 7) Press the |DAV|xey, and the data entered goes out to the GP-IB bus.

  • Page 30: Maintenance

    MAINTENANCE R E M O V A L O F C A S E Remove two screws on the top cover, four screws on the bottom cover, end four screws on the side. Then take I ho upper and tower covers away upward and downward separately.
  • Page 31 MULTI LIME INTERFACE MESSAGE...
  • Page 32 A p r o d u c t of TRIO-KENWOOD CORPORATION 17-S. 2-cnome, Shibuya. ShiBuyaku. Tokyo 150. Japan •S 25312 PRINTED IN JAPAN B5O-7503-OO (T)

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