ZM400 Series Indicators Service Manual
79
7.1
SMA Protocol
7 Communication port protocols
7.1 SMA Protocol
7.1.1 Level 1 and 2 Commands
SMA protocol is maintained by an external organization. For definitive and current
details on this protocol go to
www.scalemanufacturers.org
.
Sent
Action
Response
<LF>W<CR>
Weight of the current scale is return.
Standard response (displayed weight)
<LF>P<CR>
Indicator attempts to capture a stable weight on the
current scale.
Standard response (displayed weight).
Weight is returned as center dashes < ------ >
if a stable weight cannot be established.
<LF>Z<CR>
Indicator attempts to zero the current scale.
Standard response (displayed weight)
<LF>T<CR>
Indicator attempts to tare the current scale.
Standard response (displayed weight)
<LF>T<xxxxxx.xxx><CR>
The indicator attempts to set the current scale’s tare
weight to the value that was sent.
Standard response (displayed weight)
<LF>M<CR>
The indicator returns the current scale’s Tare weight.
Standard response (tare weight)
<LF>C<CR>
The indicator sets the current scale’s Tare weight to
zero.
Standard response (gross weight)
<LF>U<CR>
The indicator will cycle the unit of measure on the
current scale
Standard response (displayed weight)
<LF>U<uuu><CR>
The indicator will set the unit of measure to <uuu> on
the current scale.
Standard response (displayed weight)
<LF>D<CR>
The indicator will return a diagnostic message.
<LF><r><e><c><m><CR>
<r> = ‘R’ (RAM error) or
‘ ‘ (space) (RAM ok)
<LF>A<CR>
The indicator will respond with the first line of the
About data.
See “About Command Response” (below)
<LF>B<CR>
The indicator will respond with the rest of the About
data.
See “About Command Response” (below)
<LF>I<CR>
The indicator will respond with the first line of the scale
Information data. (for the current scale)
See “Scale Information Command Response”
(below)
<LF>N<CR>
The indicator will respond with the rest of the scale
Information data. (for the current scale)
See “Scale Information Command Response”
(below)
<ESC>
The indicator will reboot itself
None
