Cole Parmer RS-200 Series, Инструкция по эксплуатации

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Machine control
LK - Local keypad enable:
• 0 will prevent the local keypad from doing anything (other than beep), and permits use of
DT (display text) command.
• It is advised that the DT command is used to inform the user that the equipment is locked
and being controlled via PC.
• 1 will allow control from the keypad.
• The LCD display is cleared of DT on receipt of the LK1 command.
Example >50 LK0 #0000[cr] will disable the keypad.
DT - Display Text (new Stem Protocol command):
• Display is two lines of 16 characters per line.
• String sent in DT command is up to 32 characters which are displayed starting at top left,
and wrapping (if more than 16 characters) from top line to bottom line.
• Display is not cleared; new string overwrites any existing message. To clear display either
pad string with spaces or issue LK0 command.
• Text is sent as single string of printable ASCII characters surrounded by quote characters.
(ASCII 0x22) e.g. >50 DT” LOCKED FROM PC” #0000[cr].
• Only valid if the keypad is disabled by LK0 command, otherwise it returns an “unrecognised
command” response.
RF - reset error flags:
• Requires an argument (e.g. RF1), but the argument is ignored.
•
The command will clear the error condition flag, but if/when the error persists/recurs, the
flag will immediately be re-asserted.
Query commands
QC - request commanded variables:
• Returns TT, TR, TE, SS, SE, LK.
Example >50 QC #0000[cr].
QM - request measured variables:
• Returns SM, TM, TX, XZ.
• TM returns 999 if no internal thermometer is detected in the module.
• TX returns 999 if no temperature probe is detected.
• XZ is sent only if an error condition exists. Its argument is a string containing the same text
as is shown on the LCD display in normal use.
Example >50 QM #0000[cr].
QF - request fixed values:
• Returns FA, FB, FC, NP, SH, SL, TH, TL, RH, RL, UT.
•
FA is system firmware version.
• FB is module ID number as a string “IDn”.
• TH and FB require one successful Stem command after power-up before they will return valid
values. This is due to the display of module type presented to the user during normal use.
Example >50 QF #0000[cr].