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SOMMER MRL-7 User Manual

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MRL-7
Data Logger
User Manual
Setup version 2.14
2019-02-06
SOMMER GmbH
All rights reserved.

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Summary of Contents for SOMMER MRL-7

  • Page 1 MRL-7 Data Logger User Manual Setup version 2.14 2019-02-06 SOMMER GmbH All rights reserved.
  • Page 2 SOMMER GmbH A-6842 Koblach This manual or parts of it may only be copied or passed on to third parties with written permission of SOMMER GmbH. This applies to printed as well as digital issues of this manual. SOMMER GmbH...
  • Page 3 CE compliance This product is in conformity with the following standards EN 60950-1 EN 61326-1 EN 61010 following the provision of directive R&TTE 1999/5/EC.  Image All images displayed in this manual are for illustrative purposes only. The actual disclaimer product, scope of delivery or individual features may vary.
  • Page 4 Do not perform any installations in bad weather conditions, e.g. thunderstorms. Maintenance and repair must be performed by trained personnel or an engineer of SOMMER Mess- technik. Only replacement parts supplied by SOMMER Messtechnik should be used for repairs.

  • Page 5: Table Of Contents

    3.2 Configure the data logger ....................... 9 3.3 Connect & test sensors ........................9 4 Specifications ..........................10 4.1 MRL-7 versions ..........................11 5 Components & Functions ......................13 5.1 Measurement options ........................14 5.1.1 Analog input terminals ....................... 14 5.1.2 Counter &...
  • Page 6 6.8.1 How to insert the SIM card ....................26 6.8.2 How to do a modem test ....................27 6.8.3 How to insert the MicroSD card ..................28 6.8.4 How to replace the internal fuse ..................28 6.8.5 How to replace the internal lithium battery ............... 28 6.8.6 How to replace the internal lead-acid battery (MRL-7B) ...........
  • Page 7 A.4 Data logger clock displays year 2050 .................... 88 A.5 Camera does not record images ....................89 A.6 MRL-7 receives no data from RS-485 (SBP) sensors ..............89 A.7 I receive repeated identical messages after limit violation ............89 A.8 Measurement values are one hour behind .................. 89 Appendix B Error codes ........................

  • Page 8: Introduction

    1 Introduction The MRL-7 is a compact data logger designed to acquire, process and store all sorts of environmental data. Its waterproof housing, integrated modem and solar charger make the MRL-7 ideal for remote, autonomous monitoring applications. The MRL-7 is compatible with all sensors offered by SOMMER...

  • Page 9: Unpacking

    The following items are available as options: RS-232 to USB converter cable (Article 20181) Antenna 2G/3G/4G (Article 21118) GPS-Antenna Camera with RS-485 communication In case of missing or damaged items, and for additional equipment please contact your SOMMER sales partner.

  • Page 10: Quick Start

    3 Quick start This section will guide you through the most important steps to set up a MRL-7 data logger. 3.1 Communicate with the data logger 1. Install the Commander software 2. Connect the MRL-7 to your computer using the supplied USB to RS-232 converter cable 3.

  • Page 11: Specifications

    -40 … 60 °C (-40…140 °F), 10…90 %rH Protection rating IP 67 MRL-7: 180 x 150 x 60 mm (7.09 x 5.91 x 2.36 inch) Size L x W x H MRL-7B: 180 x 150 x 90 mm (7.09 x 5.91 x 3.54 inch) MRL-7: 1260 g (2.78 lb)

  • Page 12: Versions

    4.1 MRL-7 versions The MRL-7 is available in seven versions: MRL-7-2G/3G standard version equipped with 2G/3G- modem (see Figure MRL-7-4G-US standard version equipped with 4G/3G/2G-modem (US) MRL-7-4G-EU standard version equipped with 4G/3G/2G modem (EU) MRL-7B-2G/3G same as standard version, but with additional internal lead acid 12V/4Ah...
  • Page 13 Figure 3: MRL-7 housing, dimensions in mm Figure 4: MRL-7B housing, dimensions in mm...

  • Page 14: Components & Functions

    5 Components & Functions All data logger inputs, outputs and additional features are illustrated in Figure Figure 5: Data logger in- and outputs...

  • Page 15: Measurement Options

    5.1 Measurement options The MRL-7 data logger is designed to acquire measurements of the following sensor types: Analog sensor with voltage and current output Resistive sensors, e.g. wind vanes with potentiometer output Sensors with frequency output, e.g. anemometers Sensors with pulse output, e.g. tipping bucket rain gauge Digital sensors using SDI-12 and Sommer RS-485 protocols 5.1.1 Analog input terminals...

  • Page 16: Gps-Receiver

    5.3.2 Bluetooth A connection between the MRL-7 and your PC can also be established via Bluetooth. If your PC is equipped with an internal or external Bluetooth-device, the Communication assistant of the Com- mander software can connect to the data logger (see Section...

  • Page 17: Wireless Modem

    5.3.3 Wireless modem The MRL-7 is equipped with a wireless UMTS-modem that uses the 2G and 3G services. This allows remote connection with the data logger via IP-call, HTTP/FTP data transfer, e-mail and SMS-messages as well as time synchronization via NTP.

  • Page 18: Operation

    Menu containing the stored measurements of the variables specified in Measurements, table. 01 … 03 Variables 1 … 3 *** Settings *** Settings as described in Section 6.1.7 **** Status **** Status information Station No. SOMMER ID Station name Date Time...

  • Page 19: Activating The Display

    Software version IMSI mobile network identification State of modem Type of modem Mobile signal quality (CSQ) Table 5: Display menu structure  At very low ambient temperatures the LCD Display may react slowly and en- Hint tered commands may not be visible instantly! 6.1.3 Activating the display Press any key for at least one second.

  • Page 20: Reading And Changing A Setting

    Continuous M turn on Continuous Measurement Adjust Contrast weak Adjusts the display contrast Reboot Device - Reboots the MRL-7 Tests the internal mobile modem. Only available if a Modem Testmode modem is configured. Stores the current Lat- and Long-coordinates perma-...

  • Page 21: How To Open The Housing

    Attention the housing! To open the housing remove the cover strips on both sides of the MRL-7 and loosen the four bolts with a Philips or flat-head screwdriver. Then, remove the lid by turning it carefully upside down. Be careful...

  • Page 22: How To Connect A Sensor

    When closing, tighten diagonally positioned screws step by step! 6.3 How to connect a sensor To connect a sensor to the MRL-7 follow the steps described below: 1. Open the housing as describes in Section 2. Feed the sensor cable through the cable gland and connect it to the specified terminal (for handling the spring clips see Section 6.3.2)
  • Page 23 12 V power supply (> max. 1 A) Ground switching output 1, 12 V switching output 2, 12 V switching output 3, 12 V Ground *) 100 mA total current for all sensors **) 200 mA total current for all sensors Table 7: MRL-7 pin assignment...

  • Page 24: Using The Spring Clips

    MRL-7, destroy the device and may lead to injuries. Figure 7: Connection pin layout 6.3.2 Using the spring clips To connect a sensor to the MRL-7, 2- or 4-pin spring clips as shown in Figure 8 are used.

  • Page 25: How To Set The Data Logger Clock

    Pull out the screwdriver and verify that the wire is fixed firmly. 6.4 How to set the data logger clock The time of the MRL-7 can also be synchronized manually by clicking Set device time in the Commander Parameters (F2) tab.

  • Page 26: How To Connect The Power Supply

    MRL-7 needs to supply connected sensors of if the communication modem is active for longer periods. The MRL-7 can be powered with a 6…30 VDC power supply connected to the + Solar/- Solar of terminal X2 if mains power is available at the monitoring site. Alternatively, the MRL-7 can be solar powered as described in Section 6.6.1.

  • Page 27: Surge Protection

    The MRL-7 does not require any special maintenance other than the occasional replacement of the supply battery of the MRL-7B. The lithium button cell battery lasts approx. 10 years if the MRL-7 is not powered and generally does not require replacement with a powered data logger.

  • Page 28: How To Do A Modem Test

    6.8.2 How to do a modem test Follow the instructions below to test communication via modem: 1. Activate the display of the MRL-7 by pressing one of the arrow buttons. 2. Press until you get to the main menu, i.e. *Measurements*.

  • Page 29: How To Insert The Microsd Card

    Close the cover and slide it back into the locked position. 6.8.4 How to replace the internal fuse An internal fuse is mounted next to the X1 power supply terminal to protect the MRL-7 from any power surges or power failure effects.

  • Page 30: How To Replace The Internal Lead-Acid Battery (Mrl-7B)

    Updating the firmware 1. Connect the MRL-7 to your PC with the USB to RS232 converter cable and make sure the data logger is powered. 2. Go to the menu Extra and select Start Programmer.
  • Page 31 After completion the new firmware and setup versions will be displayed in the Com- mander. Changing the setup 1. Start the Commander on your PC and connect to your MRL-7 either directly with the USB to RS232 converter cable, a Bluetooth connection or remotely via IP-call (see Section and 7.2) 2.

  • Page 32: Calibration

    6.8.8 Calibration Re-calibration of the AD-converters strongly depends on the handling of the data logger, its duty time and the importance of the acquired measurements. Generally, re-calibration is required after approx. 10 years of operation. 6.8.9 Data security The issue of security may arise if the data logger is installed in sensitive areas, the acquired measure- ments are relevant for the safety of life and property, or intense network traffic bears the risk of data abuse.

  • Page 33: Communication

    7.1.1 USB to RS-232 converter Perform the following steps to set up the communication between the MRL-7 and your PC: 1. Install the Commander software on your PC. 2. Connect the provided USB to RS-232 converter to your PC. If required, install the driver of the USB to RS-232 converter.
  • Page 34 5. Select Serial Connection and press Next. 6. Make sure the MRL-7 is powered either by internal or external batteries and press Next. 7. Select Logger (115200 Bd) and press Next.
  • Page 35 8. Either tick Connection and select a previously configured connection, or tick Select port and select the COM port that was assigned to the USB/RS-232 converter; then click Next. If more than one COM ports are listed and you are not sure which one to select, open the Windows Device Manager (press ...
  • Page 36 11. Select if you want to create a new station. If yes, assign an appropriate name. If a station already exists, it will be recognized and automatically selected. 12. Click Finish. Upon completion, the newly created connection is displayed in the Communication section of the Commander.

  • Page 37: Bluetooth

    3. Start the Commander software. 4. Make sure the MRL-7 is powered either by internal or external batteries 5. On the MRL-7 press the button DATA BT until the message hold for BT and then waiting for BT no access is displayed.
  • Page 38 8. Select the device you want to connect to and click Next. The Bluetooth ID of your data logger is printed on a sticker on the MRL-7 housing. The software now searches for devices connected to your data logger. This may take a few seconds.

  • Page 39: Ip-Call

    Alternatively, a connection can be configured manually; please consult the Commander manual for detailed instructions. 7.1.3 IP-Call Perform the following steps to set up the communication between the MRL-7 and your PC: 1. Start the Commander software. 2. Click on Communication assistant on the right-hand side of the Commander window.
  • Page 40 3. Select IP Call and press Next.
  • Page 41 4. Select New station and press Next. 5. Enter the Station number (usually the device’s serial number), Sommer ID, the Name of the new station and your IMSI number. Then press Next. 6. The Commander is now searching for your devices. This may take several seconds. After the com-...

  • Page 42: Terminal Editor

    MRL-7 can be performed with any terminal program. Perform the following steps to connect to the MRL-7 using a terminal program: 1. Connect the provided USB to RS-232 converter to your PC. If required, install the driver of the USB to RS-232 converter.

  • Page 43: How To Define A Station

    Perform the following steps to create a new station: 1. In the tab-menu Stations (F7) click New station. 2. Under Station settings enter the Station number and Sommer ID. By default both settings are set to the device’s serial number (visible on the MRL-7 housing).

  • Page 44: Configuration

    8.1.1 How to view the data logger settings Commander After a connection to the MRL-7 has been established (see Section 7), enter the Parameter (F2) tab and click Download parameters from device. All settings of the data logger are now downloaded and stored on your PC.

  • Page 45: Measurement Interval

    Decimal character (J-B) The decimal character used in measurement data and settings. 8.4 Measurement interval The MRL-7 can perform analog, impulse counter and digital measurements at an interval between 1 s and 12 h and is set in Measurement interval.

  • Page 46: Messages & Actions

    Up to 16 actions can be specified and associated with multiple variables. 8.9 Telecommunication modem For remote communication with the data logger and data transfer the following settings of the MRL-7 modem need to be configured: Modem function (I-A) Switches the modem functionality on or off.

  • Page 47: E-Mail Settings

    The password for the used e-mail account. Port The port of the used SMTP server, usually 587. SOMMER Messtechnik does not provide e-mail services! Please contact your IT Attention department to setup an e-mail account, or create your own account with an...

  • Page 48: Remote Connection

    The address and the port of the time server. NTP synchronization time (I-F) The time at which the clock of the MRL-7 is synchronized every day. This time should not overlap with any other communication task of the data logger.

  • Page 49: Data Transmission

    HTTP: 8.15 Serial interfaces The MRL-7 is equipped with one RS-232 and one RS-485 interface. While the first is primarily desig- nated for communication of the data logger with a PC, the latter can be configured to communicate with digital sensors (Section 9.3), a camera (Section 8.13) or with other data acquisition devices.

  • Page 50: Interface

    System key and device number The system key and device number are used to identify the MRL-7 in a bus system. This is essential if multiple devices (sensors and data loggers) are operated within the same system. While the system key separates different conceptual bus systems, the device number provides a unique identification of a device in a bus system.
  • Page 51 8.15.4.1 Sommer protocol The data string of the Sommer protocol contains the system key, device number, a string number, the measurement values with their corresponding index according to Measurements, table, and a closing sequence. Details of the format are described in Appendix C.1.1.

  • Page 52: Commands

    If a command contains the identifier W the receiving MRL-7 returns a confirmation on receipt. This command type demands a closing sequence with a valid CRC-16. If a command contains the identifier S the receiving MRL-7 does not acknowledge the receipt of the command. This command type demands a closing sequence with a valid CRC-16.
  • Page 53 Requesting a single measurement value The reading command R with the index of the requested measurement returns a single measurement value. In the following example the battery voltage (index 08) is requested: #R0000_080cv|3153; Answer: #A0000ok_080cv12.6 |8252;...

  • Page 54: Measurements & Data Acquisition

    9.1 Analog measurements With the MRL-7 single ended and differential voltage signals in the range of 0 to 2.5 V can be measured. The analog inputs AN3 and AN4 can also be configured to measure resistive sensors, e.g. PT1000, and sensors with a current output.

  • Page 55: Differential Voltage Measurement

    The T/rH-sensor in this example can be configured in Measurements, table as follows: 9.1.4 Differential voltage measurement The analog input AN4 can also be configured as differential input. The wiring of a pyranometer with a 0…100 mV output is illustrated in Figure Figure 15: Wiring of differential voltage measurement (pyranometer) The pyranometer in this example is configured in...

  • Page 56: Counter & Frequency Measurements

    Please note, that in this example the Function has to be set to intensity. This option sets the counter to 0 if no precipitation is detected. 9.2.2 Frequency measurement The wind speed input of the MRL-7 – generally used for wind speed measurements – measures the frequency of an incoming signal. Figure 19 illustrates the wiring of a combined wind speed/direction sensor.

  • Page 57: Principals

    Measurements, table as follows: 9.3 RS-485 The MRL-7 is equipped with a RS-485 port on the terminal block X5. It is configured in the data logger menu RS485-2. 9.3.1 Principals The example below illustrates the acquisition of three measurement values from a digital sensor.

  • Page 58: Multiple Rs-485 Devices

    MRL-7 data logger only needs to read these data. As an example, the SOMMER SQ-X water discharge sensor can be set to measure water discharge at an appropriate interval. The acquired data can be read with the MRL-7 by wiring the data logger ac- cording to...

  • Page 59: Polling Data From An Rs-485 Device

    Various sensing devices perform measurements autonomously and send out the results on request. The SOMMER IDS-20 Ice detection system is an example of such a device. It detects icing of a surface with a capacitive transducer and is used, for example, in the wind industry and in aviation to detect ice loads and icing events.

  • Page 60: Measurement Intervals

    1 value: 6.6 Figure 23: Principal of data acquisition by SDI-12 At the beginning of each measurement interval the MRL-7 sends an M! command to the first sensor (a). The sensor answers by returning the number of available measurements and the measurement duration.

  • Page 61: Gps

    S-MEA to the position of the required measurement value in the data string. To check the correct wiring between the MRL-7 and SDI-12 sensors, and to request the addresses of these sensors click on Sensor search in the SDI-12 bus mastering menu.

  • Page 62: How To Collect Data

    (see Section 8.14) or stored manually on a USB flash drive (see Section 6.5). Collecting data with Commander Data of a MRL-7 can also be collected with the Commander software by performing the following steps: 1. Establish a direct or remote connection with the MRL-7 using the Commander (see Section details).

  • Page 63: Parameter Definition

    10 Parameter definition The settings of the MRL-7 can be read and changed with the PC software Commander (see Section 8). Station ID Station name Measurement interval 00:05:00 Storage interval 00:05:00 Measurements, max. number Aux measurements, max. number Measurements, table...
  • Page 64 E Measurements, max. number The number of variables the MRL-7 records. If the MRL-7 is shipped with additional instruments, SOM- MER Messtechnik pre-configures the required variables. The variables are configured in Measure- ments, table and their number can be increased to 99.
  • Page 65 Unit The unit of the selected variable. Decimals The number of decimal places assigned to the selected variable. The following options are available: Decimals Description 1…5 number of decimal places assigned to the selected variable none no decimal places as S the number of decimal places of the source is adopted (see S-TYP) Scale is set to 1…5 or none.
  • Page 66 A Number of times the MRL-7 is activated via its keyboard. key S Number of times the MRL-7 is activated via its keyboard with the special key sequence manual If the selected value has been changed manually, the updated value is stored.
  • Page 67 S-MEA The name of an internal system variable, the connection port of the selected analog sensor, or the position of the measurement value within the string returned by the selected digital sensor. See S-TYP for the available options. S-ADD Contains additional commands which are sent with a standard request to a sensor (or source), or which provide additional options for controlling measurements and handling results.
  • Page 68 H Messages, table The MRL-7 features a configurable messaging system. Messages are transmitted to defined recipients whenever a measurement value exceeds or falls below a limit specified in Limit. In the messages table up to 16 messages can be configured. Each entry is configured by the parameters...
  • Page 69 The time in seconds the selected switch is closed after a limit violation has occurred. Code Description %sid% Station ID assigned to the MRL-7 %sname% Station name assigned to the MRL-7 %cname% Name of the channel that triggered the message...
  • Page 70 Default Unit -1…9’999 The PIN cannot be changed with the MRL-7. Use a different device, e.g. mobile phone, for this task. If the wrong PIN is entered, the SIM card will be locked after three consecu- Attention tively attempts to transfer data.
  • Page 71 Only 4G telecommunication networks are used to transfer data. The telecommunication network is selected automatically. Applies to the US auto (US + CA) and Canada only. I-B-C Foreign operator mcc&mnc The mobile country code and mobile network code for your home network in case your provider is a virtual one.
  • Page 72 00:10:00 I-C-C Data transmission offset The data transmission offset is used to prevent several MRL-7 from sending their data to the same server at the same time. Thus, set different transmission offsets when using several MRL-7 with the same server.
  • Page 73 Data transmission 1 Data transmission 2, the latter transmissions are executed first. I-F Synchronization time The time at which the clock of the MRL-7 is synchronized. Value range Default Unit 00:00:00 … 23:59:59 02:08:43 I-G NTP server The address of the NTP server.
  • Page 74 The port of the IP call server. Default is 4647. I-O IP Call interval The interval at which the MRL-7 checks if there are any IP call requests. These checks are only per- formed within the time window specified by...
  • Page 75 Sender Username Password Port I-P-A E-mail/SMTP The name or address of the E-Mail server used by the MRL-7 to send e-mails, e.g. smtp@emailpro- vider.com. I-P-B Sender E-mail address of the MRL-7, e.g. sender.name@emailprovider.com. I-P-C Username Username of your e-mail server account (if requested by the server).
  • Page 76 SOMMER suggests not to change the ID, except if a MRL-7 device is replaced. In such a case it can be practical to change the ID of the new device to the ID of the replaced device to guarantee data con- sistency.
  • Page 77 J-C-G LCD, Brightness The MRL-7 is equipped with an integrated ambient light sensor that is used to automatically adjust the display brightness. If the light intensity is below the specified value, the backlight brightness is automatically adjusted to a suitable level.
  • Page 78 00:00:00 … 23:59:59 00:01:00 J-D-C Sync date (last) The date at which the MRL-7 date is manually synchronized to the Commander date; read only. This date is saved automatically for traceability. J-D-D Sync time (last) The time at which the MRL-7 time is manually synchronized to the Commander time; read only. This time is saved automatically for traceability.
  • Page 79 Default Unit 00:00:01 … 24:00:01 J-E Com-1 protocol Device number System key Output protocol (OP) Sommer OP, measurement output just per command OP, wake-up sequence prefix OP, prefix holdback J-E-A Device number Number that uniquely identifies the device in a bus system.
  • Page 80 J-E-B System key Defines the bus system of the MRL-7. Thus, different conceptual bus systems can be separated. Bus systems may interfere with each other if the remote radio coverage of two measurement systems overlap. Value range Default Unit 1 … 99 J-E-C Output protocol (OP) The following serial output protocols can be selected.
  • Page 81 J-F Com-1 port Baudrate 115200 Minimum response time Flow control RTS-CTS J-F-A Baudrate Baud rate for the RS-232 interface. Value range Default Unit 1'200 … 115'200 115'200 J-F-B Minimum response time Setting of this parameter avoids interference of communication at the RS-232 interface. For this pur- pose the response to a command is delayed by the selected time.
  • Page 82 J-G-A Baudrate Baud rate for the RS-485 interface. Value range Default Unit 1'200 … 115'200 115'200 J-G-B Parity, stop bits The following combinations of parity and stop bits can be selected: Parameter Description no par, 1 stop (default) No parity and 1 stop bit no par, 2 stop No parity and 2 stop bits even par, 1 stop...
  • Page 83 Setting Description Continuous polling is inactive. on (default) Continuous polling is active. J-G-I Trig, timeout The time the MRL-7 is waiting until expected commands/answers are received via the RS485-2 inter- face. Value range Default Unit 3 … 250 J-G-J Trig, sleep while timeout To reduce power consumption the MRL-7 can switch to a sleep mode between measurements.
  • Page 84 Changes the SDI-12 address of a connected sensor. J-H-D Ask for a sensor address Reads the SDI-12 address and its identification of a single SDI-12 sensor connected to the MRL-7. The address generally is a number 0…9, but can also be a letter a…z or A…Z.
  • Page 85 J-I-B 12V sensor supply Sets the 12V analog sensor supply. Setting Description off (default) 12V sensor supply is switched off. switched 12V sensor supply is active during measurements only (max. 200mA). always on 12V sensor supply is always active (max. 200mA). J-I-C Extended supply Auxiliary voltage and current output for analog measurements.
  • Page 86 Powering of a connected camera. Setting Description off (default) Camera is not powered by the MRL-7 Camera is connected to switched 12-V supply SW1. Camera is connected to switched 12-V supply SW2. Camera is connected to switched 12-V supply SW3.
  • Page 87 Only available in terminal mode. When active, measurements are performed continuously, in the fast- est possible interval. This mode can also be triggered under the Commander Measurement tab with the command Start polling measurements, or via the keyboard of the MRL-7 (see Section 6.1.7 details).
  • Page 88 K-D Inspection, nominal values Only available in terminal mode. Lists internal nominal values of the MRL-7 and is used for diagnostic purposes. K-E Inspection, start process Only available in terminal mode. Performs a test of the internally generated voltages and analog inputs.

  • Page 89: Appendix A Trouble Shooting

    Appendix A Trouble shooting A.1 Device is not powering up Reason Solution Power supply not connected or off Check if power supply is connected and on Wrong polarity of connected power supply Check polarity of connected wires wires Internal 2A fuse missing or blown Replace/insert fuse (see Section 6.8.4) Adjust power supply to permissible voltage;...

  • Page 90: Camera Does Not Record Images

    Image viewer on PC does not open Camera may require a different communication Third-party camera in use protocol. Contact Sommer Messtechnik for compatibility information. A.6 MRL-7 receives no data from RS-485 (SBP) sensors Reason Solution Trig, polling is off Turn on...

  • Page 91: Appendix B Error Codes

    Table 14: Exceptional and error values B.2 System errors The error codes listed in Table 15 may be returned by the MRL-7. Any error messages are returned with the Special function Device status, or can be recorded with system variables in...
  • Page 92 The error codes are reported in hex-format by System advice codes and are ordered by the groups according to Table 0x0010 Group 1 ERROR_POR_Reset 0x0800 Group 2 RS2_TX_SEND_OVERRULED_BUF 0x0000 Group 3 No error 0x0010 Group 4 SYSTEM_MAIN_ADDONBIT_ERROR Example: Record errors with Measurements, table The errors of groups 1, 3 and 4 of Table 15...
  • Page 93 Group Binary Description 0x0001 0000 0000 0000 0001 ERROR_CLOCK_CONCEPT 0x0002 0000 0000 0000 0010 ERROR_SER_OUT_CONCEPT 0x0004 0000 0000 0000 0100 ERROR_fall_in_Trap 0x0008 0000 0000 0000 1000 ERROR_MCLR_Reset 0x0010 0000 0000 0001 0000 ERROR_POR_Reset 0x0020 0000 0000 0010 0000 ERROR_STP_HASH 0x0040 0000 0000 0100 0000 ERROR_TIBLOCK_TO 0x0080...
  • Page 94 0x0002 0000 0000 0000 0010 SYSTEM_RS2_TIMEOUT_ERROR 0x0004 0000 0000 0000 0100 SYSTEM_SDI2M_EMPFANG_ERROR 0x0008 0000 0000 0000 1000 SYSTEM_MAIN_AV50TO_LOW_ERROR 0x0010 0000 0000 0001 0000 SYSTEM_PRIMADC_NOXREF_ERROR 0x0020 0000 0000 0010 0000 SYSTEM_PRIMADC_BAD_SW_ERROR 0x0040 0000 0000 0100 0000 SYSTEM_PRIMADC_AD7795_ERROR 0x0080 0000 0000 1000 0000 SYSTEM_PRIMADC_TIMEOUT_ERROR 0x0100 0000 0001 0000 0000...

  • Page 95: Appendix C Serial Interfaces

    Appendix C Serial interfaces C.1 Protocols C.1.1 Sommer protocol A data string of the Sommer protocol has the following format (example): #M0000G00se01 17.25|02 65.13|03 2.41|04 7.08|05 145.2|06 0.3|07 0.6|08 12.0|1978; Header The header (#M0000G00se) identifies the data by system key, device number and string number.

  • Page 96: Standard Protocol

    CRC-16 4-digit hex number End character <CR><LF> Control characters Carriage return and Line feed Table 18: End sequence of the Sommer protocol C.1.2 Standard protocol The data string of the Standard protocol has the following format: M00_0000 17.25 65.13 2.41 7.08...
  • Page 97 Parameter Format Description Start character M Independent message I Identification within a network W Write a setting and receive a confirmation T Write a volatile setting and receive a Identifier confirmation, e.g. time S Write a volatile setting without confirmation R Read a setting, value or other information A Answer of device to read or write command System key...

  • Page 98: Error Codes

    Table 23: Error codes in serial communication C.4 Sommer CRC-16 The CRC-16 (cyclic redundancy check) used in data transmission of Sommer devices is based on the ZMODEM protocol. When data are exchanged between two devices the receiving device calculates the CRC-value.

  • Page 99: Appendix D Escape Characters

    Appendix D Escape characters The following escape characters may be used for parameter values where indicated: Escape character ASCII representation <CR> <LF> <TAB>...

  • Page 100: Appendix E Dip-Switches

    Appendix E DIP-switches The counter inputs of the MRL-7 can be configured with three DIP-switches to receive different input signals. The location of the DIP-switches is shown in Figure Figure 25: DIP-switches To configure the counter inputs to receive signals from a sensor with either an open collector output...

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