About this Page
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This page describes the setup and use of the recommended BLM communications protocol for VTube.
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General Communications Setup at the BLM Bender for Both Protocols
- Connect the BLM bender to the network.
- Connect the VTube-LASER computer to the network.
- Setup a shared network location either in the BLM windows control or in a network path on your network.
- If you share a folder on the BLM control, then create a user with a username and password that can be used to login to the computer from the VTube-LASER computer.
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PROTOCOL 1: BLM SVNET PROTOCOL (SW0453)
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The BLM SVNET protocol is the PREFERRED PROTOCOL for CORRECTING the BLM.
BLM SUPRAVISION NETWORK PROTOCOL - Preferred
This is the communications protocol that we recommend you use.
- Typically, there is a charge from BLM for this protocol to be switched on. The BLM catalog number is "SW0453". Contact BLM for the price and how to have it switched on in the bender. A BLM technician will work with your IT department to install and enable the protocol if you purchase it.
- This protocol can send and receive corrected bender XcYcZc, part number, diameter, wall thickness, cut length, and radii values.
- The communication is bi-directional to and from the bender. It is possible for VTube-LASER to SEND and RECALL XcYcZc bender data to/from the BLM control.
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BLM SVNET PROTOCOL: Setup in VTube-LASER
Entering VTube-LASER Benderlink Setup
- Enter the VTube System Options menu.
- Enter the Global List tab menu.
- Enter the Setup Benderlink Network menu.
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Setup the Benderlink Network Grid for the BLM SVNET Protocol
- Choose an unused row in the grid for a new BLM bender setup. (Click on the image at the right to see a zoomed image.)
- Assign a bender name that will help operators identify what this bender is. This text will be displayed at the top of the Bender Setup menu.
- Set the protocol to BLM SVNET.
- Enter the path to the shared drive or folder in the NetPath field. Use the same location as the BLM setup. VTube accepts UNC names as well as regular paths with drive letters.
- Enter the IP address in the PING IP ADDRESS field if it is a fixed field. (This is not required. It allows VTube to ping the address to see if the network location is active before trying to open communications.)
- Most BLM benders handle Positive rotations as a Clockwise motion, so you will probably need to enter "YES" for these options (so that the rotations are not corrected in the wrong direction).
- Press Close to save the settings. VTube will save these values to a global configuration file that will not change unless you change them in this grid.
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BLM SVNET PROTOCOL: How to SEND CORRECTION Data to the BLM Control from VTube-LASER
Bend the Part on the BLM then Open Measuring Center Communications
Click on the measuring center image to the right of the part number.
This will display a small communications window on top of the VGP3D user interface.
The window will allow the BLM to respond to requests for communication from VTube-LASER.
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Measure the tube with VTube-LASER
Measure and align the tube to determine if it qualifies by falling within the envelope tolerance for the tube shape.
In the VTube-LASER screen shot, you see the actual result of the first tube not qualifying in shape. The red cells in the tangent point grid on the lower left show that the measured tube centerline is out-of-tolerance.
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Correct the BLM with VTube-LASER - Enter BENDER SETUP
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Follow these steps in the VTube-LASER:
Press the "BENDER SETUP button in the Navigation Pane.
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INITIAL RECALL Setup of Bender Setup Window
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These steps assume that you have programmed a part into the bender and that you have measured and aligned a part.
STEP 1 - Set the correct bender number at the top of the window. The BLM SVNET bender icon should display if you have already set up the bender protocol in the Benderlink grid.
STEP 2 - Click on the "RECALL LRA from BENDER" button.
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RECALL Warning Boxes
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VTube-LASER will probably warn you that the incoming data count and part number does not match what is in VTube-LASER.
- It is very important that you allow the incoming bender data to increase the bend count to whatever is at the bender.
- If you want the Part Number at the bender to be left untouched, then just accept the incoming part number and use it for transfer from this point forward.
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THE BLUE COLUMNS SHOULD MATCH THE BLM XcYcZc DATA AFTER THE RECALL
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After the RECALL, the blue columns should show the data that is programmed in the BLM control.
This ensures that corrections are being made to the correct foundational data. If the blue column data does not match the bender at correction time, then it is probable that the bender will not be corrected properly.
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SEND THE CORRECTIONS TO THE BLM FILE
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SAVE the Correction data to the file for the BLM by pressing AUTO SEND BENDER CORRECTIONS.
STEP 1 - Click on Bidirectional Communication
STEP 2 - Click on AUTO SEND BENDER CORRECTIONS.
This will change the contents of the BLM XYZ to the values from the VTube ORANGE cells.
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AT THE BLM, Close the Communications Window
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If you saved the orange columns of data from VTube-LASER to the BLM, then you can close the communications window at the BLM and then check the new XYZ bender values. Be sure that they match the data in the orange cells in VTube.
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SIMULATE and RUN
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- Run the simulator with the new data.
- Bend the corrected part.
- Press the measuring center icon in the upper right corner to build the CMM.txt file in Z drive.
- Take the part back to VTube-LASER to measure it again for qualification.
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IMPORTANT RULES for CORRECTIONS LOOPS
- A RECALL from the BLM must be performed first so that VTube learns the data that is currently used to bend the part that you just measured.
- The number of bends must match in both VTube-LASER and BLM.
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See also VTube Communication for BLM VGP3D - Alternative Protocols
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