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Data interface – Holtgreven Truck Scale Resources User Manual

Page 26

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PT300 Users manual

Rev G, Feb 2011

Page 26 of 44

Data Interface

Serial ASCII
20 mA current loop, active or passive. (The PT300 supplies the current for active current loop,
and an external current is used for passive current loop. Passive is preferred for longer battery
use between charges.)

1200 Baud
8 data bits
1 start bit
2 stop bits
no parity

M Kg

Transmission Format: A_O_-XXXXXXX._Lb

Z


Format explanation:

A = Scale code (Signifies the scale, could be

A for scale A, B for scale B etc..)

Space

M,O,Z = Error code (M = motion, O = over-capacity,
Z = zero, space = no error)

Space

Minus sign if negative, space if positive.

8 data bits

Space

Pounds/Kilograms

Carriage return

Line feed