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DLG LMP-100 User Manual

Profibus/modbus gateway
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Profibus/Modbus Gateway
LMP-100
User Manual
Profibus/Modbus Gateway
MAN-EN-DE-LMP100-01.00_14

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Summary of Contents for DLG LMP-100

  • Page 1 Profibus/Modbus Gateway LMP-100 User Manual Profibus/Modbus Gateway MAN-EN-DE-LMP100-01.00_14...

  • Page 3: About This Manual

    The instrument described in this technical user manual is a device suitable for application in a specialized technical area. DLG supplied products are submitted to a strict quality control process. However, industrial control electronic equipment can cause damage to machinery or processes controlled by them in the event of any failure or improper operations and may even endanger human lives.

  • Page 4: Table Of Contents

    DIMENSIONS ....................... 9 FRONTAL ......................10 CONFIGURATION ....................11 Profibus address configuration ..................11 GSD file installation ......................12 Module configuration (LMP-100/M) ................... 12 Modbus network configuration ................... 13 Modbus rule configuration ....................16 Diagnostics ........................23 Control register ........................28 ELECTRICAL INSTALLATION ................

  • Page 5: Presentation

    Profibus DP slave and a Modbus RTU master, it allows Modbus slaves to be controlled by Profibus masters. The LMP-100 may be mounted on a standard 35 mm DIN rail. LEDs provide indication of power supply, device, Modbus and Profibus network states.

  • Page 6: How To Specify

    PROFIBUS/MODBUS GATEWAY How to Specify LMP-100 / ____ Profibus input and output buffers sizing: compact: fixed size buffers modular: buffer sizing Page 6 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 7: Typical Applications

    • Necessity of using a particular device only available with Modbus communication in Profibus-based facility. Figure 1 depicts a LMP-100 typical application. In the role of a Profibus DP slave, the LMP-100 receives commands from the Profibus master. These commands are interpreted by the LMP-100 which, in the role of a Modbus master, forwards them to the Modbus slaves.

  • Page 8: Technical Specifications

    Aprox. weight 0,2 kg Dimensions 101 x 22.5 x 119.5 mm. (height x width x depth – without frontal DB9 connector) Page 8 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 9: Dimensions

    LMP-100 PROFIBUS/MODBUS GATEWAY Dimensions Figure 2 – Dimensioning for assembling (dimensions in millimeters) LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 Page 9 of 40 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 10: Frontal

    Orange Indicates data transmission over the Modbus network. Green Indicates data reception over the Modbus network. Page 10 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 11: Configuration

    The only parameter that is not configurable through the master is the LMP-100 address on the Profibus network. It is important to notice that as all configuration is sent to the LMP-100 at the Profibus DP parameterization state, configuration changes cause the device to leave the data exchange state and return to the parameterization state, temporarily stopping the data transfer between the Profibus and Modbus networks.

  • Page 12: Gsd File Installation

    The GSD file installation procedure is manufacturer specific, so it is recommended to consult the respective Profibus master user manual. After proper installation of the GSD file, the entire configuration of the LMP-100 is done through the Profibus master configuration software.

  • Page 13: Modbus Network Configuration

    LMP-100 PROFIBUS/MODBUS GATEWAY Modbus network configuration The LMP-100 provides the following configuration parameters for the Modbus network: Parameter Description Modbus network baud rate. All slaves must use the baud rate adopted by the LMP-100. The possible values are: • 1200 bps •...
  • Page 14 The wait interval is useful to allow the slave which sent the response to be able to change the RS-485 transceiver direction from “transmit” to “receive”. The LMP-100 is configured by default to wait for 10 ms, a suitable value for most installations. Therefore, change this parameter only when really necessary.
  • Page 15 LMP-100 PROFIBUS/MODBUS GATEWAY Note: Except for the Modbus parity, all the parameters listed above have a direct influence on the time interval needed by the LMP-100 to scan all Modbus slaves. LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 Page 15 of 40 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 16: Modbus Rule Configuration

    244 bytes long, used for data exchange with the Profibus master. The input buffer is where the LMP-100 puts data to be transferred to the Profibus master. This data is polled from the Modbus slaves. The output buffer is where the LMP-100 places data received from the Profibus master.
  • Page 17 According to the Modbus specification, each data type (digital input, digital output, analog input and analog output) can have up to 65536 variables. LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 Page 17 of 40 All rights reserved to DLG Automação Industrial © 2011 – 2014...
  • Page 18 Registers) byte order should be inverted. (available starting at firmware version • No: byte order is not inverted. 02.01.00) • Yes: byte order is inverted. Page 18 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...
  • Page 19 LMP-100 is encoded in this format. Profibus masters and other supervisory systems may be designed to operate in the LE format. Should that be the case, the LMP-100 may be configured to perform the byte order inversion internally, thus eliminating the need to program a byte order inversion algorithm in the PLC, for instance.
  • Page 20 “On value change”. At one point in time, the Profibus master changes the value of a digital output from 0 to 1. The LMP-100 transfers this change to the appropriate Modbus slave. Sub sequentially, the Modbus slave is turned off and on again, and the non-retentive digital output goes back to value 0.
  • Page 21 It is important to know how the Modbus functions encode the data exchanged between masters and slaves, since the LMP-100 transfers to the Profibus buffers Modbus data exactly as they are exchanged in the Modbus network. Table 3 details how data is encoded according to each Modbus function.
  • Page 22 To write 0 to the output, it is necessary to transfer the value 0000 To write 1 to the output, it is necessary to transfer the value FF00 Table 3 – Modbus variables encoding Page 22 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 23: Diagnostics

    Diagnostic is comprised of several conditions mapped into bits, where bits with value 1 indicate an alarmed condition. Byte 0 indicates the number of available diagnostic bytes. The LMP-100 provides 42 diagnostic bytes. Bytes 1 and 2 are reserved.
  • Page 24 Diagnostic data can be obtained through two mechanisms. The choice of mechanism is done via the “Device diagnostics” parameter. The options are: Page 24 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...
  • Page 25 (available starting at firmware version 02.01.00) The LMP-100 provides exactly the same diagnostic data for both mechanisms. The choice of mechanism for accessing diagnostic data must take into account certain factors. The “Profibus input” option lets diagnostic data to be accessed easily, since they are mapped to the Profibus input buffer.
  • Page 26 LMP-100 PROFIBUS/MODBUS GATEWAY Page 26 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...
  • Page 27 Table 6 – Failure identification via the ST LED. LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 Page 27 of 40 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 28: Control Register

    “No” in all rules that address the missing or defective Modbus slave, preventing Modbus communications with the slave. However, it is important to emphasize again that any change in the LMP-100 parameters stops data exchange while the the device is reparameterized by the Profibus master.
  • Page 29 Rule R03 user trigger Rule R02 user trigger Rule R01 user trigger Rule R16 user trigger Rule R15 user trigger Rule R14 user trigger LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 Page 29 of 40 All rights reserved to DLG Automação Industrial © 2011 – 2014...
  • Page 30 Disables the control register functionality and do not reserve memory for it at the Profibus output buffer. (available starting at firmware version 02.01.00) Page 30 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...
  • Page 31 It is also important to note that the output buffer becomes fully available for Profibus output variables, since the control register is no longer mapped at the beginning of the output buffer. LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 Page 31 of 40 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 32: Electrical Installation

    S terminal and other ground references located at the bus extremities. Page 32 of 40 LMP-100 User Manual MAN-EN-DE-LMP100-01.00_14 All rights reserved to DLG Automação Industrial © 2011 – 2014...

  • Page 33: Power Supply

    The DB9 connector and the terminals are internally wired, and can be used together. For example, the LMP-100 may be connected to the Profibus master through the terminals and a network analyzer can be simultaneously connected to the DB9 connector, without disturbing the device operation.

  • Page 34: Mechanical Installation

    LMP-100 PROFIBUS/MODBUS GATEWAY Mechanical Installation Fix the LMP-100 on the the top of the DIN rail. Using a screwdriver, pull the lock that is located at the bottom of the LMP-100. After pulling the lock, fix the LMP-100 at the bottom of the DIN rail.

  • Page 35: Recommendations

    LMP-100 PROFIBUS/MODBUS GATEWAY Recommendations It is recommended to use only appropriate tools for the LMP-100 installation and maintenance. It is necessary to use a “terminal” type screwdriver for terminal connection or 1/8 with 3 mm maximum diameter, as it is the ideal format and will not damage the connector aperture.

  • Page 36: Warranty

    3. For repairs, send the equipment along with the shipping invoices to our factory in Sertaozinho, Sao Paulo state, Brazil. DLG’s address is available at the end of this manual. 4. The owner is responsible for transportation costs and risks.
  • Page 37 Notes...
  • Page 40 Rua José Batista Soares, 53 Distrito Industrial – 14176-119 Sertãozinho – São Paulo – Brasil DLG reserves the right to change this manual contents without Fone: +55 (16) 3513-7400 notice in order to keep it updated with future product improvements.

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