11 SMA protocol
11.1
General information
The protocol of the "Scale Manufacturers Association" (SMA) provides a simple access to
the scale. It can be used for reading data, or for executing functions.
Fixed interface settings are 8 bits, no parity and 1 stop bit.
The commands to the transmitter are printable ASCII characters starting with
<LF> = 0A hex and ending with <CR> = 0D hex.
The transmitter sends a reply on each received command after approx. 100 µs. With
commands that wait for standstill of the weight value, the reply can be delayed by the
timeout.
The following commands are supported:
W, Z, D, A, B, <ESC>, H, P, Q, R, S, T, M, C, I, N
11 SMA protocol
X3 Process Indicator PR 5410
EN-291
Minebea Intec
