Toledo 8213 Scale and Interface

Last edited: December 15, 2003 08:18 AM
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Download Scale Interface[/b:vaijvyff][/u:vaijvyff][/color:vaijvyff]

Cable

CPU              Scale
DB25 

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    DB9
Female          Male
 

  2 — Transmit — 3
  3 — Receive  — 2
  4 —
      | Loopback
  5 —
  7 —  Ground  — 1
Switches

Leave at default settings(all OFF)
Levelling

Lift off top platter and adjust legs until bubble is centered within circle.
Calibration

Software Interface

Touchnet shells to SCALE.EXE which transmits a request out COM2 and waits up to five seconds for a valid response.  The status is returned through Branch and must be zero or an error has occured.  The scale groups all errors into a single byte added so many error numbers are possible but the common ones are listed below.  If the status is zero then dollar 3 will contain the weight in hundredths of a pound.

Status    Cause

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  0            Good transmission
  1            Scale in motion
  2            Weight greater than 30 lbs
  3            Invalid response from scale
  4            Weight less than zero
  9            No response from scale