Rice Lake DWM-IV Weighmeter Standard Operators Manual User Manual

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described, the user may program up to three (3) preamble characters that are sent

after the STX character and up to three (3) postamble characters which are

transmitted just before the ETX character. These characters may be used for

special purposes such as releasing the paper clamp on a ticket printer or performing

a double wide print out.

All Weight data fields are six (6) active characters in length. If required by the

programmed capacity, this field will be expanded to seven (7) characters to include

the decimal point (2Eh) justified in the proper position within the weight field. Non-

significant leading zeroes will be transmitted as spaces but the least significant three

(3) characters are not zero suppressed.

Data Block Format:

Data Block

where PR is preamble and PO is postamble.

In the format descriptions below, the following abbreviations apply:

U
N

represents the programmed units and may be

from zero to seven characters long.

represents the tare and may be any of the following

depending on the programmed configuration:

1. TR If single register tare is used and tare was entered via pushbutton.

2. TR(K) If single register tare is used and tare was entered via the keyboard.

3. TRx If Ten-Tare Look-up is enabled. x represents the tare register currently

selected. Tare value was entered via the pushbutton.

4. TRx(K) Ten-Tare Look-up as in 3. above but entered via the keyboard.

Represents the checksum data which is the sum of the

data previously sent and is in 2's complement binary

notation. The checksum is comprised of two ASCII

hexadecimal characters. These two characters are only

inserted if the 'Checksum Transmit Enable' is enabled.

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