ISHIDA BC-300 Service Manual page 67

Appendix
3. Hardware
A shielded 4-conductor twisted-pair cable is used to inter-connect the scales. The cable is terminated at
a 9-Pin Sub-Miniature D-Type male connector. Grounding is made at only one point - the master scale
chassis. At each satellite scale the ground wires are "daisy chained". The ground cable at the last scale
is not used.
Cable Pinout (straight through configuration)
Pair One 5 ---- 5 Data
9 ---- 9 Data
Pair Two 3 ---- 3 Signal Ground
7 ---- 7 Frame Ground
4. Programming
The following programming steps are available only at the master scale.
P01 - PLU Editing
P02 - PLU Name
P22 - Price Changes
5. Operation
A BC-3000 system scale operates the same as a normal stand alone machine.
6. Totals
A BC-3000 system scale operates the same as a normal stand alone machine. Totals must be taken at
each machine separately.
7. Errors
If a satellite scale is not communicating the master scale will display
On Line Error No X
where X is the satellite number that is not communicating.
8. Miscellaneous
If a satellite is to be removed from the system, reset its ROM switch number 2D = 0. See step 2A above.
Appendix - 6
BC-3000 • Service Manual • Rev. 1