AMALGAMATED INSTRUMENT HH4-WT, Operation And Instruction Manual, Page: 24 / 28

Where: < ACK > is Acknowledge (6 Dec, 06 Hex)
S echo command received “S” (83 Dec, 53 Hex)
A is the responding units address
YYYY is the secondary display value in ASCII
< CR > is a Carriage Return (13 Dec, 0D Hex)
For
NONE
the primary and secondary display values will be identical. If
tARE
is used then the
primary display value transmitted will be the live input value i.e. the gross value. The secondary
display value transmitted will be the tared value i.e the nett value. For
d.HLd
and
P.HLd
the
secondary display will be the held value and the primary display the live input value. For
CHNL
the secondary display returned data will be the channel number i.e. 1, 2 or 3.
3. Transmit Instrument Model and Version: < STX > IA < CR > e.g.
∧
BI!
∧
M in the terminal
program (address 1) Instructs unit to return the model and version number of the instrument.
Format of returned data is:-
< ACK > IACCX.X < CR >
Where: < ACK > is Acknowledge (6 Dec, 06 Hex)
I is echo command received “I” (73 Dec, 49 Hex)
A is the responding units address
CC is a 2 character model identifier e.g “Ht”
X.X is the version number (e.g.: “0.1”)
< CR > is a Carriage Return (13 Dec, 0D Hex)
4. Invalid Command . If the command received from the host is not valid then the unit may
return the following:- < ACK > ?A < CR >
Where: < ACK > is Acknowledge (6 Dec, 06 Hex)
? is the character “?” (63 Dec, 3F Hex)
A is the responding units address
< CR > is a Carriage Return (13 Dec, 0D Hex)
If the address received from the host does not match the units address then the unit will not
respond at all.
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