Interface Parameters; Interface Installation - Heidolph MR 3003 control Betriebsanleitung

7. Interface connection
• Turn the item OFF before connecting an interface cable.
• We recommend to use an interface cable with SUB-D 9 connectors (male), use the female connec-
tor (17) located in the item's rear panel.
Do not use but the wires shown to avoid malfunction of your interface.
7.1 RS 232 interface
• This interface allows to define nominal temperature of
your samples and nominal speed.
• This interface allows to send OUT actual temperature
of your samples and actual speed.
• For wiring details of the SUB-D connector refer to
drawing.
• A dot in the display is going to flash as long as the in-
terface is active.
Caution:
Do not use but the wires shown to avoid malfunction of your interface.
7.1.1 RS 232 interface commands:
trigger
command action
REM! activate interface
LOC! deactivate interface
H1! heating circuit ON
H0! heating circuit OFF
M1! select Set1 mode
M2! select Set2 mode
D=xxxx! Set speed
TP=xxx! Set temp probe (Set1 & Set2 only)
DP=xxx! Set ∆T (Set1 & Set2 only)
TH=xxx! Set hot plate temp (Set3 only)

7.1.2 Interface parameters

• 9600 baud, no parity, 8 bit, 1 stop bit, no protocol
17
rear view, MR 3003 control
command
TP1?
TP2?
TH1?
D?
query
action
act temp Pt 1000 probe1
act temp Pt 1000 probe2
act temp Pt 100 hot plate1
act speed
E
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