Advantech ADAM-5000/TCP Series Manual page 209

Chapter 6
Planning Your Application Program
(cr) is the terminating character, carriage return (0Dh)
Example command: $01S2C16(cr)
response: !0103.000(cr) The command tells
channel 1 of the analog output module in slot 2 of
the ADAM-5000/TCP system at address 01h to
return the last output value it received from an
Analog Data Out command, or its start-up output
current /voltage. The analog output module returns
the value 3.000 mA (this assumes that the module
was configured for the range 0-20 mA).
6-140 ADAM-5000/TCP User's Manual