Specifications

The following details contain more information when U5 is set to 7:

a) The baud rate and data format is set by U6 and U7. Responses to serial commands will be immediate, or

within one weight measure cycle of the scale. One second is adequate for use as a time-out value by remote

(controlling) device.

b) The length of the weight field will be 8 digit weight data, one for minus sign, one for decimal point, two for

measure unit (e.g. “lb”, “kg”). If the unit is lb:oz, another two for “lb” and one for a space (<sp>) after lb.

Units of measure abbreviations are always lower case.

(1). If the weight is overcapacity, the scale will return ten ‘^’ characters (the field of minus sign, decimal

point, weight data is filled by ‘^’).

(2). If the weight is under capacity, it will return ten ‘_’ characters (the field of minus sign, decimal point, and

weight data is filled by ‘_’).

(3). If the zero point has an error, it will return ten ‘_’ characters.

(4). The character will be ‘-’ for negative weight or a space character for positive weight. Minus sign follow

after the first digit.

(5). Useless leading zeros before digits are suppressed.

c) Key to symbols used

<LF> : Line Feed character (hex 0AH)

<CR> : Carriage Return character (hex 0DH)

<ETX> : End of Text character (hex 03)

<SP> : Space (hex 20H)

H1H2H3 : Three status bytes

<p> : Polarity character including minus sign for negative weight and a space character for positive weight

W1-W8 : Weight data

<dp> : Decimal point

U1U2 : Measure units, “kg”, “lb”, or “lb oz”

d) Commands and responses

(1). Command: W<CR> (57h 0dh)

Response:

① over capacity:

② under capacity:

③ zero-point error:

Note: If the weight unit is lb: oz, U1U2= “lb oz” in above item ①②③.

④ Normal weight is displayed, current weight unit is kg or lb, decimal point position is set by C4:

⑤ Normal weight is displayed, current weight unit is lb:oz,

(2). Command: S<CR> (53h 0dh)

Response: <LF> H1H2H3<CR><ETX>

(3). Command: Z<CR> (5ah 0dh)

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