Data interface – Holtgreven Truck Scale Resources User Manual
Page 26
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