Gasboy CFN Site Controller - Manual (Page 16)

8 Tokheim Pump Interface Manual v1.3
Gasboy CFN Series 03/20/03
Setting if SCII software is v2.0 and above.
CFN3
When connecting DPTs to the CFN3, the CFN3 must be jumpered for 2-wire via K6 for loop
1and K7 on loop 2 on the CPU board. The factory default K7 (loop 2) is set for 2-wire.
Setup of DPTs for the SCII and CFN3
Note: Before proceeding, we recommend that the Tokheim dispenser and DPT electronics be
tested in stand-alone mode. For additional information on topics in this section, see the Tokheim
Premier Technical Reference Manual.
Program chip
Tokheim DPT models used with the GASBOY SCII and CFN3 must have a DPT CPU PCB with
a GASBOY DPT.HEX program chip installed at location U13. Check with your service
representative for the latest version. To obtain the PCB and program chip, order:
• From Tokheim, for Premier dispenser with Premier DPT CPU, P/N 420929; for TCS
with Premier DPT, P/N 420929-2.
• From GASBOY, program DPT.HEX, P/N TC8175
With the GASBOY DPT program installed, the Tokheim DPT diagnostics will no longer
function. Use the GASBOY diagnostics for ICRs explained in the GASBOY CFN Diagnostic
Manual.
Note: The 10 second wait time is important because when the DPT is powered up, the
keyboard follows its default layout until the DPT communicates to the Site Controller. It then
follows the keyboard layout loaded in the SYS_PAR.BIN. The CLEAR/CANCEL button on the
default keyboard layout in the DPT may not be at the same location on the keyboard as it is in the
keyboard layout configured in the SYS_PAR.BIN.
RS-422/485
The communication between the SCII, CFN3 and DPT is RS-422/485 half duplex versus the RS-
422/485 full duplex that both Site Controllers uses with the GASBOY RS-422/485 devices
(mechanical PCU, island card reader, Checkpoint console and RS-232/RS-422/485 converters).
The DPT communicates through the ISLAND LOOP 1 port for SCII and Loop 2 for CFN 3; the
GASBOY RS-422/485 devices — not mechanical PCU — communicate through the CONSOLE
LOOP 2 port for SCII. For CFN3, Gasboy RS-485 devices - including mechanical PCVs - can
communicate through Loop 1.
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