#### Sheffield Interface tab

Machine Options dialog box - Interface tab

The Interface tab allows you to configure the following settings for the Sheffield interface.

RS232 - Select this option if you plan on using RS232 rather than GPIB. All newer Sheffield controllers, SMP3xx and SMP400, use serial communications.

LPT2 - Select this option if your system uses the MSI board to read the scales.

Tech80 - Select this option if this system uses the Tech80 board to read the scales.

Manual Machine - Select this option if this is a manual machine. Note: Use this option for testing purposes only, if this is to be a dedicated manual machine then the Tech80 interface should be installed.

RS50 - Select this option if this system uses RS50.

Machine Port - This value sets the RS232 comm port for the controller.

Tech80 IRQ - This option sets the interrupt value for the XYZ tech80 board. If you do change it, make sure that the jumper on the tech80 card is the same. Default is 5. Note: This does not apply to the rotary table Tech80board. It does not require an interrupt.

Hit Delay - This is the delay time before reading a hit from the MSI board. Default is 0.3. If this value is too small then the board will be read too quickly and get an incorrect reading. If you are having accuracy problems then you may want to try fractionally increasing this value. Note: If you are using the MP Hits option then changing this value will have no effect.

Reset Delay - Some MP units will hang if commands are sent too quickly. You can increase this value if you suspect this to be the case, however increasing this value will reduce system performance. Note: When running with SMP400, this value needs to be 1.0.

PH9 - Select this option if you are using a PH9.

PH9 Handbox (PH9D) - If the PH9 'pendant' hand held control unit is present then select this option.

PH9 Baud - This value sets the baud rate for the PH9. Valid values are 300, 1200, 4800, or 9600. By default the serial protocol used is No stop bits, 8 data bits, and 1 parity bit (N81).

PH9 Port - This option sets the RS232 comm port for the PH9.

MP Hits - Selecting this option will cause PC-DMIS to get its hit data from the Sheffield MP unit instead of the tech80 board. The advantage of this is that the MP unit provides compensated data so no ASI comp map needs to be created. The disadvantage is that this option disables the functionality of the Jog Box macro keys (End, Erase hit, store move, etc.) while in TakeHits mode (see the JogBoxToggle option below). Note: There is no need to use this option you are using the MSI board because this board already reports back compensated data, also make sure if you are using a Tech80 board that the probe cable is NOT connected to the probe signal in the MP unit.

MP Vectors - When this option is not selected, PC-DMIS will track the vectors of hits by reading the position of the probe before a hit is taken. Selecting this option will cause PC-DMIS to get the vectors directly from the MP unit. The disadvantage is that this option disables the functionality of the Jog Box macro keys (End, Erase hit, store move, etc.) while in TakeHits mode (see the JogBoxToggle option below). Note: Some of the older systems do not support this function. If you get an 'Invalid Parameter 21' error when you initialize with this option then your system does not support it. If you are using MP Hits then you should (if supported) use this option.