Address
宁波研发园A区2栋12B17
聚贤街道,鄞州区,宁波市,浙江中国
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周六 to 周日: 9:30AM - 10:30PM
Data source explanation: The product parameters of Marposs in this article are referenced from the official Marposs product manual and MIDA programming manual (D310 series), while the system parameters of OKUMA are referenced from OKUMA’s publicly available technical materials..
1、 Okuma+Marposs MIDA: Mainstream Solutions for Automotive Powertrain Lines
In the field of automotive powertrain processing, the combination of Okuma machine tools and Marposs MIDA probes is a very mature combination. There is a complete comparison mapping between Okuma’s OSP system (P100/P200/P300) and Marposs’ MIDA macro program system.
Typical configuration:
| Component | Recommended Model | Accuracy |
| Workpiece probe | Marposs VOP40P (optical/piezoelectric) | 0.25μm |
| or | Marposs WRSP60 (wireless) | 0.4μm |
| or | Marposs VOP40 (Optical Standard) | 1.0μm |
| tool setter | Marposs T25P (piezoelectric) | 0.25μm |
| or | Marposs TLS (Contact Standard) | ±1.0μm |
| receiver | Marposs wireless/optical receiver system | — |
Applicable industries and scenarios:
2、 Comparison between Okuma OSP system and Marposs MIDA macro program
2.1 Basic Measurement Instructions
| function | Fanuc System | OKUMA OSP | Marposs MIDA Macro |
| Jump trigger | G31 | G31（compatible） | MIDA triggers macro |
| Knife instruction | G37 | G37（compatible） | MIDA Knife Macro |
| Automatic scoring | Macro Program | Macro Program | MIDA P9376-P9388 |
| Multi point measurement | Macro loop | Macro loop | MIDA O9301-O9392 |
2.2 Macro Programs of Marposs MIDA on Okuma
Marposs MIDA provides a specialized macro library for the Okuma system. The following is a comparison of commonly used macro numbers:
| function | Macro Number | Explanation |
| Single sided measurement | P9376 | Single Z/X/Y surface measurement, return surface position coordinates |
| Inner Diameter Measurement | P9377 | Automatic measurement of hole inner diameter, supporting three-point/four point/multi-point modes |
| outer diameter measurement | P9378 | Automatic measurement of shaft outer diameter, capable of measuring cylinder/cone outer diameter |
| Measurement of inner groove width | P9379 | Automatic measurement of inner groove width |
| Measurement of outer groove width | P9380 | Automatic measurement of outer groove width |
| Measurement of hole center distance | P9381 | Automatic calculation of double hole center distance |
| Angle Measurement | P9385 | Measurement of the angle between two surfaces |
| Workpiece alignment | P9388 | Automatic centering of rectangular workpieces, including rotation compensation |
| Knife measurement | O9301 | Automatic tool length calibration |
| Measurement of tool diameter | O9302 | Automatic measurement of tool diameter |
| Broken Tool Detection | O9303 | Automatically determine whether the tool is broken |
Note: The above macro numbers are fully defined in the Marposs MIDA D310 series programming manual. The parameter addresses of different versions of OKUMA OSP system may vary, and the specific software version needs to be confirmed before calling.
2.3 MIDA Macro Program Example Code
Example 1: P9376 Single sided Z-measurement (Okuma OSP)
'==================================
' MIDA P9376 - Single sided Z-height measurement
' Applicable：OKUMA OSP P100/P200/P300
'==================================
N1000 'CALL MIDA P9376
N1010 M202 'Probe signal ON（M202/M203Customize M code for machine tool manufacturers，Confirmation must be made according to the PLC ladder diagram）
N1020 G00 XYZ D1=R50 'Quickly locate to a safe location
N1030 G31 Z-20.0 F500 'ZSlow axis approaching and triggering（G31Skip instruction for OSP standard）
N1040 HALT 'Stop
N1050 V1 = VSAPZ 'Read skip trigger Z-axis coordinates（OSPSystem variable VSAPZ）
N1060 G00 Z50 'ZAxis retraction
N1070 M203 'Probe signal OFF（M202/M203Customize M code for machine tool manufacturers，Confirmation must be made according to the PLC ladder diagram）
N1080 V2 = V1 - 10.0 'calculate offset（10mmFor reference distance）
N1090 END
Example 2：P9377 Inner Diameter Measurement（OKUMA OSP）
'==================================
' MIDA P9377 - Inner Diameter Measurement
' Applicable：OKUMA OSP + VOP40P
'==================================
N2000 'CALL MIDA P9377 - Inner Diameter Measurement
N2010 M202 'Probe signal ON（M202/M203Customize M code for machine tool manufacturers，Confirmation must be made according to the PLC ladder diagram）
N2020 G00 X100.0 Y100.0 Z5.0 'Quickly locate above the center of the hole
N2030 'Measure the positive direction of the X-axis
N2040 G31 X120.0 F300
N2050 HALT
N2060 VXPD[1]=VSAPX 'Record the triggering position in the positive X direction（OSPSystem variable VSAPX）
N2070 'Measure the negative direction of the X-axis
N2080 G00 X100.0 Y100.0
N2090 G31 X80.0 F300
N2100 HALT
N2110 VXPD[2]=VSAPX 'Record the triggering position in the negative X direction
N2120 VX_DIAM = VXPD[1] - VXPD[2] 'Calculate the aperture in the X direction
N2130 'Measure the positive direction of the Y-axis
N2140 G00 X100.0 Y100.0
N2150 G31 Y120.0 F300
N2160 HALT
N2170 VXPD[3]=VSAPY 'Record the trigger position in the positive Y direction（OSPSystem variable VSAPY）
N2180 'Measure the negative direction of the Y-axis
N2190 G00 X100.0 Y100.0
N2200 G31 Y80.0 F300
N2210 HALT
N2220 VXPD[4]=VSAPY 'Record the triggering position in the negative Y direction
N2230 VY_DIAM = VXPD[3] - VXPD[4] 'Calculate the Y-direction aperture
N2240 V_AVG = (VX_DIAM + VY_DIAM) / 2 'average diameter
N2250 M203 .Probe signal OFF（M202/M203Customize M code for machine tool manufacturers，Confirmation must be made according to the PLC ladder diagram）
N2260 V10 = V_AVG 'The final result will be stored in V10
N2270 END
Example 3：P9388 Automatic centering of rectangular workpieces（OKUMA OSP）
'==================================
' MIDA P9388 - Automatic centering of rectangular workpieces
' Applicable：OKUMA OSP + VOP40P
'==================================
N3000 'CALL MIDA P9388 - Workpiece alignment
N3010 M202 .Probe signal ON（M202/M203Customize M code for machine tool manufacturers，Confirmation must be made according to the PLC ladder diagram）
'N3020-N3050 Measure both sides in the X direction
N3020 G31 X-50.0 F300
N3030 HALT: VXP[1]=VSAPX (OSPSystem variable VSAPX)
N3040 G00 X50.0 Z50.0
N3050 G31 X150.0 F300
N3060 HALT: VXP[2]=VSAPX
'N3070-N3100 Measure both sides in the Y direction
N3070 G00 X0 Y50.0
N3080 G31 Y-50.0 F300
N3090 HALT: VYP[1]=VSAPY (OSPSystem variable VSAPY)
N3100 G00 Y0 Z50.0
N3110 G31 Y150.0 F300
N3120 HALT: VYP[2]=VSAPY
N3130 M203
'Calculate the center X of the workpiece、Ycoordinates
N3140 VX_CENTER = (VXP[1] + VXP[2]) / 2
N3150 VY_CENTER = (VYP[1] + VYP[2]) / 2
N3160 'Write the offset of the workpiece coordinate system（G54）
N3170 VX_OFF = VX_CENTER - 50.0
N3180 VY_OFF = VY_CENTER - 50.0
N3190 G54 X=VX_OFF Y=VY_OFF
N3200 END
三、OKUMA OSP USSDetailed parameter description
3.1 USS（User servo settings）Parameter System
OKUMA OSPThe USS parameters of the system are the core configuration area that connects the Marposs probe with the machine control system。USSThe parameter group covers skipping signals、feed rate、Key settings such as acceleration。
USS parameter access steps:
1. Enter maintenance mode: Simultaneously press and hold the MODE key, Operation key, and BUZZ key for about 3 seconds2. Screen display; SERVICE MODE" Indicates successful entry3. Choose "; USS PARAMETER" (User servo setting parameter group)4. Use the page keys to switch between parameter groups5. After modification, press the WHITE key to save6. After saving the parameters, restart the control system or press the RESET button to make the settings take effect
3.2 Skip signal parameters (SKIP SIGNAL SETTING)
Key parameters related to jump signals in the USS parameter group:
| USS parameter number | parameter name | Explanation | Typical Setting Values |
| USS-101 | SKIP INPUT SELECT | Skip signal input port selection | According to the hardware wiring configuration (such as PORT-3) |
| USS-102 | SKIP SIGNAL POLARITY | Skip signal polarity | 0 (normally open)/1 (normally closed) |
| USS-103 | SKIP APPROACH FEED | Jump step approaching speed | 1000-3000 mm/min |
| USS-104 | SKIP MEASURE FEED | Measure feed rate | 100-500 mm/min |
| USS-105 | SKIP RETRACT FEED | Return speed | 3000-5000 mm/min |
| USS-106 | SKIP TOLERANCE | Skip signal delay compensation | 0.01-0.10 mm |
| USS-107 | SKIP DELAY TIME | Delay time after triggering | 0-50 ms |
| USS-108 | PROBE SIGNAL CHECK | Enable self-test of probe signal | 1 (Enable) |
Setting instructions for SKIP TOLERANCE (USS-106):
The SKIP TOLERANCE parameter is used to compensate for the electrical delay and mechanical inertia of skipped signals. Setting a value that is too large (>0.10mm) can reduce measurement accuracy, while setting a value that is too small (<0.01mm) may lead to false triggering or instability. Recommend an initial setting of 0.05mm, and then adjust it through standard part verification.
3.3 Tool Setting System Parameters
| USS parameter number | parameter name | Explanation | Typical Setting Values |
| USS-201 | TS POSITION X | X-coordinate of the center of the tool setter | Write after calibration |
| USS-202 | TS POSITION Y | Y-coordinate of the center of the tool setter | Write after calibration |
| USS-203 | TS POSITION Z | Z height of the tool instrument panel | Write after calibration |
| USS-204 | TS APPROACH DIR | Approach the direction of the knife | 0（Z-）/ 1（Z+） |
| USS-205 | TS MEASURE FEED | Measuring the speed of the knife | 50-200 mm/min |
| USS-206 | TS SEARCH FEED | Tool search speed | 500-2000 mm/min |
| USS-207 | TS RETRACT DIST | Return distance of the knife | 1.0-3.0 mm |
| USS-208 | TS TOOL DIAM LIMIT | Upper limit of tool diameter | According to the machine tool settings |
3.4 Program Protect Parameters
| USS parameter number | parameter name | Explanation | Typical Setting Values |
| USS-301 | MACRO PROTECT | Macro Program Protection Enable | 0 (disable protection) |
| USS-302 | #PROGRAM ACCESS | Enable program level parameter access | 0 (read and write allowed) |
| USS-303 | SERVO PARAM PROTECT | Servo parameter protection | 1 (Enable protection) |
Note: MACRO Protect must be set to 0 (disabled), otherwise MIDA macro programs cannot be called properly..
4、 Key points for hardware installation and debugging
4.1 Hardware Installation
4.2 Software Configuration
Configure probe skip signals in the OPTIONAL PARAMETER (BIT/WORLD) and TOUCH PROBE PARAMETER settings interface of the Okuma system. Specific steps:
1. Enter OKUMA maintenance mode (MODE key+ACTION key+BUZZ key)2. Select USS parameter group3. Locate SKIP SIGNAL SETTING4. Set the jump address to match the output of the Marposs receiver5. Restart the control system
4.3 Calibration Process
1. Install the standard probe (including the standard measuring needle) into the spindle2. Calibration of tool setter: Run the MIDA tool setter menu and calibrate with a standard core rod3. Probe calibration: Run the MIDA probe calibration program to measure the standard ball4. Verification: Measure the ring gauge/standard part with known dimensions and confirm that the deviation is ≤± 2 μ m5. Calibration data storage in the system: Record at least 3 retest results
5、 Common troubleshooting (supplementary)
Question Reason Solution Skip signal without triggering SKIP parameters are not mapped correctly Check the correspondence between SKIP address and receiver output in OPTIONAL PARAMETER Macro program does not run Program protection parameters are not open Check that USS-301 MACRO PROTECT=0 VOP40P signal is unstable Optical path obstructed Clean the window and check the protective cover The data deviation of the tool setter is large Calibrate coordinate offset Re run the calibration cycle Intermittent probe has no response Insufficient power supply for the receiver Check the power supply voltage of the receiver (24V ± 10%) Systematic bias of measurement results The compensation parameters for measuring needle ball diameter have not been updated Run the probe calibration to confirm the ball diameter compensation value OKUMA system alarm; SKIP ERROR" Skip signal timeout Check the battery level of the probe (VOP40P battery has a lifespan of approximately 6 months) Slight damage to the cutting tool during cutting The height data of the tool gauge Z is incorrect Stop immediately and recalibrate the Z height of the tool setter MIDA macro program stopped midway Macro program version does not match OSP system Confirm that the MIDA D310 programming manual version corresponds to the OSP system version Troubleshooting priority:
VI. Summary
The combination of Okuma Okuma and Marposs MIDA has been validated for a long time in the automotive parts production line and has a high level of technological maturity. After correct installation and configuration, a stable detection accuracy of 0.25 μ m can be achieved. Initial configuration suggestion:
For specific configuration plans or on-site debugging support, please contact NINGBO JCE INDUSTRIAL TECHNOLOGY CO., LTD.
Do you need a more specific plan?
The configuration, operating conditions, and budget of each machine tool are different, and this article only provides a reference framework. You can:
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