Milltronics OCM II PL-269, Инструкция по эксплуатации

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In some cases the message must also contain a date. When this is the case it is placed immediately after the
message type identifier. It must be four digits long and in the form ddmm. For example 2301 would specify the
23 rd of January.
The following example considers sending a request to the OCM II that it transmit its site identification number
(entered as P14 during start up).
To retrieve the SITE NUMBER from the OCM II the user must transmit the following message:
STX; start of text = $02
MT; message type = ‘s’ or ‘S’
CR; carriage return = $0d
In BASIC one might form a request string:
REQUEST$ = CHR$(2)+"S"+CHR$(13) and then print it to the communications port
The message returned by the OCM II will be an ASCII string representing the floating-point site number preceded
by STX and terminated by CR.
STX; start of text = $02
SITE #; 6 digits plus decimal, e.g. ‘15.0000’ CR; carriage return = $0d
In BASIC one might receive the response with:
INPUT (communications port), RESPONSE$ and then strip off the first and last characters
SITE$ = MID$(RESPONSE$,2,LEN(RESPONSE$)-1)
SUMMARY OF MESSAGE CODES
[Each must be preceded by STX ($02) and suffixed with CR ($0d)]
SEND TO OCM II OCM II RESPONSE
H returns the current head D0
R returns the current flowrate D1
P returns the primary totalizer rdg. D2
V returns the resetable totalizer rdg. D22
C clears the resetable totalizer D22
S returns the site identification number P14
Tddmm returns the daily flow total for a specific date from the file of
logged data
Fddmm returns the 96 entries of the flowrate log (F9) for a specific date
or for slower computers, use Lddmm
Lddmm sets up to return 96 entries of the flow-rate log (F9) for a specific
date, one at a time in response to a prompt (N)
PL-269 9 – 10