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Summary of Contents for MF MFL 500-C
- Page 1 MFL 300/500/800-C Operating instructions...
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Page 3: Table Of Contents
Table of contents 1 Foreword 1.1 Notes on documentation 1.2 Safety instructions 1.3 Manufacturer's declaration 1.4 General safety instructions 2 General task 2.1 Description of the MFL 2.2 Measuring procedure 3 Program inputs / outputs 3.1 Syntax of the special commands 3.2 Program messages 4 The status report system 4.1 The Status Byte Register... -
Page 4: Foreword
The information, illustrations and descriptions in this documentation do not entitle the user to make any claims for changes to pro- ducts already supplied. Copyright © MF Mess– und Feinwerktechnik GmbH. Distribution and reproduction of this document, utilization and communication of its contents are forbidden unless specifically permit- ted. Infringements will result in compensation for damages. -
Page 5: Safety Instructions
Disclaimer Changes to the hardware or software configuration that go beyond the documented specifications are not permitted and will result in MF Mess- & Feinwerktechnik GmbH's exclusion of warranty. Qualification of staff This description is intended exclusively for trained technicians in measurement and control technology who are familiar with the ap- plicable standards. -
Page 6: Manufacturer's Declaration
1.3 Manufacturer's declaration This measuring device is a non-autonomous machine that is installed on a tensile and compression testing machine. Start-up is not allowed until the entire testing machine complies with the regulations of the relevant European standards. These must be complied with by the respective testing machine manufacturer or service company. 1.4 General safety instructions CAUTION When mounting the MFL on the testing machine! Due to its weight (26-38 kg) and the high design (830/1030/1325 mm), it is... -
Page 7: General Task
2.0 General task The MFL300/500/800-C is designed to detect the change in length of tensile specimens used for materials testing. The testing machi- ne control and the material-related evaluation of the specimens is not part of this control system. The system-internal software of the MFL electronics only controls the extension measuring device and the recording and forwarding of the readings recorded by the MFL. -
Page 8: Measuring Procedure
2.2 Measuring procedure The MFL is attached to a testing machine for tensile tests. It determines the change in length of a test specimen during the tensile test. The measured values of this load cell are then set in relation to the measured values determined by the MFL. The recording and synchronization of the measured values can be created at the serial interface via the handshake lines. -
Page 9: Syntax Of The Special Commands
3.1 Syntax of the special commands Figure 2.2: Syntaxgraph of the special commands The structure of the commands specifically intended for MFL control is similar to that described above. The first character of a com- mand is the ":" sign. This makes the command group immediately recognizable. This is followed by the command word. No further characters are permitted between the command character and the command word. -
Page 10: The Status Report System
4 The status report system The status structure of the software is used to coordinate the various events and error messages of the device and to communicate them to the connected PC. A structure similar to IEEE 488.2 was selected for this purpose. It consists of a status byte, which is connected to the service request enable register. -
Page 11: The Standard Event Status Register
4.2 The standard event status register Figure 3.2: Standard Event Status– Register The standard event register contains bits that indicate the error status of the device. Bit 0 Operation complete. This bit is set to 1 until all commands received so far have been processed. Bit 1 Request Controll, always "0"... -
Page 12: Conversion Of The Structure To An Rs232 Interface
4.3 Conversion of the structure to an RS232 interface Neither a service request nor a serial poll call can be generated for the RS232 interface. In order to adapt the structure described above to the requirements of the serial interface, the following is defined: If an IEEE 488.2 device would generate a service request signal, the associated error message is shown directly and in plain text on the serial interface. -
Page 13: Error Messages
5 Error messages 5.1 Errors and error numbers Command error - 100 - 199 Bit 5 - CME Executing error - 200 - 299 Bit 4 - EXE Device dependent error - 300 - 399 Bit 3 - DDE Query error - 400 - 499 Bit 2 - QYE 5.2 Command error Error number... -
Page 14: Commands
6 Commands Principal Use of the Commands The use of the commands essentially depends on the chosen host master. The deciding factor here is which interface is used and the form in which the signals and data sent by the MFL are to be used. The simplest option requires only a termi- nal or a master with a terminal program (e.g. -
Page 15: Commands According To Ieee 488.2
6.1 Commands according to IEEE 488.2 *CAL Instrument CALibration Syntax: *CAL *CAL? Parameter: none Use: This command initiates a calibration of the device or queries whether the device is calibrated. Example: *CAL #> The lower measuring head of the MFL moves to its last specified position values and the upper measuring head follows it. Command Send MFL Promt... -
Page 16: Special Commands
Use: This query is used to identify the device. The response is a string that specifies the manufacturer, model, serial number and firmware. Example: #>*IDN? MF Extensometer V1.47 Serial No: 08030057 #> 6.2 Special commands :DOL Display Original Length Syntax:... - Page 17 :FMT ForMaT Syntax: :FMT <Formattyp> Parameter: 1, 2 or 3 Use: Selects the output format of the measured values according to the following table: 1. Output of the measured values as binary values 2. Output of the measured values as Packed BCD 3.
- Page 18 50.0120 Only output of one measurement value after sending $ Command Send MFL Promt No Enter 0050.0120.. 30 30 35 30 2E 30 31 32 30 0D 00 Possible error: The :MST command is sent if the correct values for gauge length and position have not previously been moved with the :MOV command.
- Page 19 mfq off Syntax: Parameter: none Use: Enables the signal to disattach the automatic MFQ-A / B2 or its carriage (MFQ-Stop). Example: Command Send MFL Promt Kein Enter ..#> Response of the received command 0D 0A 23 3E < Syntax: < Parameter: None Use: Command: End of measurement Character„<„...
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Page 20: Special Notes
6.3 Special notes A null modem cable is required to connect the RS232 serial interface (cable X11 with two 9-pin sockets; 3 m cable is in- cluded in scope of delivery). A USB 2.0 cable type A to type B is required for control via USB. (3m cable is included in scope of delivery). It is also important to ensure that the hardware handshake of the host master is actually operated. -
Page 21: Start-Up
NOTE Only trained personnel or in cooperation with MF-GmbH should carry out any work on the MFL-C. The measuring heads on the MFL-C must have a free range of movement in all directions and must not be in an end position of a travel range (up and down movement)! 8.1 Connections... -
Page 22: Setting The Initial Gauge Length
DIP-Swich SW3: SW3/1 RS232 / Baud rate see figure SW3/2 RS232 / Baud rate see figure SW3/3 Parity OFF / ON SW3/4 Parity Even / Odd SW3/5 Measured value resolution ON = 1 µm / OFF = 0,1 µm SW3/6 Default setting from the manufacturer - must not be changed SW3/7 Language of error messages... -
Page 23: Measurement Outputs Of The Control Electronics
In example = 7.80 mm 10 Measurement outputs of the control electronics 10.1 RS232 / USB RS232 see command :MST see command :MST 10.2 Measured value output X13 / RS422 (Standard) Output X13 is a 15-pin Sub-D connection. This output supplies two square-wave signals (Ua, Ub) shifted by 90°, a refe- rence pulse (Ur) and their inverted signals. -
Page 24: Maintenance And Repair
11 Maintenance and repair 11.1 Checking the gauge heads Both measuring heads are identical and can be interchanged. No settings need to be changed when exchanging the mea- suring heads. 1. The lower edge of the upper gauge head and the upper edge of the lower gauge head must be at right angles to the MFL housing. - Page 25 Mess- und Feinwerktechnik GmbH Konrad-Zuse-Str. 4 42551 Velbert Deutschland Fon: + 49 (0) 2051/80229-0 E-mail: mf@mf-gmbh.de Internet: www.mf-gmbh.de Version 1.2 | 2024-05-17...
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