LTR42 Output module for digital signals

Output module for digital signals
  • The module for outputting 16 control signals by external actuators via opto-relay outputs with channel galvanic isolation
  • Synchronization of data acquisition in crate and in multi-crate system
  • + 5V power output at the external connector

Designed for discrete control of technological processes, laboratory and production equipment, industrial automation systems.

LTR42 is used in circuits of automatic ON/OFF or switching of equipment operation modes, both when directly connected to control circuits, and for controlling more powerful intermediate actuators: relays, contactors, etc.

The main technical characteristics
Number of asynchronous output signals 16 (parallel, asynchronous)
Type of outputs Two-wire opto-relay AC-outputs of SPST-NO type
Maximum closed-loop current Not more than ±70 mA
Maximum open-circuit current No more than ±1 μA at a voltage of ±250 V
Maximum permissible open-circuit voltage Not more than ±250 V
Switch-on time 5 ms
Resistance of the closed state of the opto-relay output Not more than 30 Ohm
Galvanic isolation between discrete output signals Channel-by-channel up to 250 V
Synchronization of data acquisition in a crate and in a multi-crate system
Number of bi-directional synchronization signals 2 (second mark and "START" mark)
Levels of synchronization signals Compatible with TTL, 5V - logic
Maximum output current of synchronization lines configured to output ±10 mA
Galvanically isolated power output of external devices
Output voltage +(5±0,1) V
Output load current 300 mA
Maximum capacitive load 1000 μF

Note: LTR42 module can not be calibrated.

 

External signals connector

Hardware description, assignment and connection of signals is given in the User's Guide.

Descriptions

  • ltrapi_en.pdf (filesize: 604 618 bytes, date: 15.02.2018)

    Ltrapi basic library. Programmer's Guide.

  • ltr_cross_sdk_en.pdf (filesize: 551 553 bytes, date: 13.02.2018)

    Description of the software for Windows, Linux, FreeBSD and QNX.

  • ltr_en.pdf (filesize: 11 066 427 bytes, date: 25.12.2017)

    LTR modular DAQ system. User's Guide (revision 3.1.0).

    • General characteristics and principles of construction
    • Working with LTR crate
    • Overview of LTR crate architecture
    • LTR11 ADC module
    • LTR212 (M) strain measurements modules
    • LTR27 measuring module
    • LTR41, LTR42, LTR43 digital I/O and synchronization modules
    • LTR51 frequency meter module
    • LTR22 ADC module
    • LTR24 (-1, -2) ADC modules
    • LTR25 ADC module
    • LTR34 DAC module
    • LTR35 DAC module
    • LTR114 ADC module
    • LTR210 ADC module
    • LTR00 Dummy module
    • Low-level programming of LTR-EU crate
    • Specification
  • ltr_soft_getting_started_en.pdf (filesize: 269 974 bytes, date: 13.02.2018)

    Starting to work with DAQ system LTR. Questions about the software.

Software for Windows

  • lcard-opc-setup.exe (filesize: 12 440 520 bytes, date: 09.04.2019)

    OPC DA Server for L Card data acquisition modules and LTR crate system. Version 1.0.10.

  • lcomp.exe (filesize: 6 498 080 bytes, date: 20.03.2019)

    Beta version. LCOMP library for Windows XP/Vista/Win7/Win8/Win10 32 and 64-bit versions with drivers. The installer and drivers are digitally signed. The library is built on the basis of modern WDM-drivers rewritten on WDF. It includes the WDM driver itself for L-CARD hardware, the DLL library with source code, programming examples, electronic description, etc. The LCOMP library provides support for almost the entire range of products: PCI boards, USB modules. ISA support is excluded.

    The library includes “L-Graph I” software. L-Graph I supports the following devices: L-1450, L-761, L-780, L-783, L-791, E14-140, E-154 and E14-440. Files recorded by L-Graph I can also be read and processed using the demo-version of PowerGraph v.3.X.

  • ltrd-setup.exe (filesize: 1 462 392 bytes, date: 18.12.2018)

    The ltrd service. Version 2.1.7.0. Provides communication with LTR crates. It is a replacement for the LTRserver software while maintaining the compatibility of the program interface. ltrd is designed for the same purpose as LTRserver, but it is a service that runs when the system is started. The graphical interface to the service is provided by a separate LTR Manager program.

    Attention! Only one of the programs ltrd or LTRserver can work at a time.

  • ltrdll.exe (filesize: 1 238 560 bytes, date: 26.08.2019)

    Libraries for working with LTR crates and modules. Version 1.32.10.

  • ltrmanager_setup.exe (filesize: 7 971 712 bytes, date: 13.12.2018)

    LTR Manager software. Version 1.5.2. Graphical interface to the ltrd service. Provides an interface similar to the LTRserver interface when working through the ltrd service.

Contacts

Phone: +7 (495) 785-95-19
Fax: +7 (495) 785-95-14

Sales department: en@lcard.ru
Technical support: en@lcard.ru

5 Varshavskoye shosse, corp. 4, build. 2
Moscow 117105
Russian Federation

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About us

More than 3,000 customers worldwide are already using L-CARD electronic equipment for a wide range of research and industrial applications. We are glad to help you at any stage of creating an electronic product: from development and production to post-warranty support.

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