HP TwinTec manual Overview, PC Requirements

OVERVIEW

TCFI Log software runs under Microsoft

Windows 98/ME/XP/Vista. This software allows TCFI fuel injection controller users to view real time engine data during dyno tuning, download and display data logged by the unit including operating statistics, and to control certain engine functions. An optional USB Interface or PC link cable is required to connect to the existing four terminal Deutsch style data link connector on the H-Dwiring harness.

The new Twin Tec USB Interface P/N USB-INTF provides PC connectivity for all of our engine controls (ignition and fuel injection systems) and eliminates the requirement for multiple cables or a separate USB adapter if your laptop is not equipped with an RS-232 serial port (9 pin male D-sub connector). The USB Interface is compatible with Windows 98/ME/XP/Vista.

If you do not have the new USB interface, you will require the original RS-232 PC link cable P/N TCFI-C also used with our new TC88A ignition. Please note that the TC88C PC link cable used with the earlier TC88 ignition will not function. The two types of PC link cables have identifying labels, but otherwise appear similar. However, the electrical connections are different and the two cables types cannot be interchanged.

After TCFI Log is launched, the main screen appears blank. You have multiple display options. You can display real time engine data on an instrument panel type screen by using the View Real Time Data command on the View menu. You can display data logged by the TCFI unit on a chart recorder type screen. You can also view engine operating statistics logged by the TCFI unit. Data logged by the TCFI unit must be downloaded before it can be displayed, by using the Download Data From TCFI command on the Communications menu. Once data has been downloaded, it is automatically displayed on a chart recorder type screen. You can view the engine operating statistics by using the View Statistics command from the View menu. You can save this data by using the Save File command from the File menu. You can display a previously saved data file by first using the Open File command on the File menu and

then using the View Chart or View Statistics commands on the View menu.

TCFI Log is compatible with all TCFI Gen II units (including the new TCFI IID version) and TCFI units with Rev 5.0 or higher firmware.

A sample data file (Sample.log) is included in the program folder.

PC REQUIREMENTS

If you are using the new Twin Tec USB Interface (P/N USB-INTF), refer to the supplied instructions for details. No additional hardware is required.

The original PC link cable connects to an RS- 232 serial port by means of a female 9 pin D-sub connector. Data transfer occurs at 56 kBaud. The high baud rate limits the maximum cable length and the use of an extension cable is not recommended. Due to the cable length limitation and the need for portable access, a laptop PC is recommended. The PC must have a free serial port (COM1-255) with a standard 9 pin male D-sub connector. If your laptop does not include a serial port, you can use a USB adapter. However, not all USB adapters will work correctly with our PC link cables. Most of the inexpensive USB adapters are intended for interfacing Palm Pilot type devices and do not support all the signals required by our PC link cables.

We sell and recommend a low cost USB adapter (P/N USBG-232) that has been tested with a wide range of system configurations. The USBG-232 adapter comes with correct and updated driver files on CDROM. After installation the USBG-232 adapter will usually appear as COM5.

We recommend a laptop with Pentium processor and super VGA display (SVGA with 1024 x 768 pixel resolution) running Windows 98/ME/XP/Vista. Data chart display is graphics intensive and a high speed Pentium processor is recommended. Processors slower than 300 MHz will exhibit sluggish program loading and response. The PC must have a CDROM drive for program loading.

TCFI Log includes print commands to print downloaded data. The program has been tested with