Bowers Group Sylvac Opto Instruments - Manual (Page 14)

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The simplex cable can be directly connected to any standard program as "HyperTerminal" provided with
Windows.
Connections
Line definition Name Sub-D 9 pin Cable color Line status
Positive power supply : RTS 7 white ON (HIGH)
Negative power supply TXD 3 brown OFF (LOW)
Data (instrument to periphery) RXD 2 yellow INPUT
Data request:
Standard status
Data request
DTR 4 green
ON (HIGH)
OFF (LOW) during min. 110m
sec.
Duplex cable
The duplex cable allows a 2-way communication between an instrument and a PC in half-duplex mode (e.g. 2-
way communication but not simultanuously).
Important : Only Duplex instruments have the ability to receive RS232 commands. If you use a Duplex cable
with a simplex instrument, all commands other than "?" will be seen as a data request.
The pin assignment of a duplex cable is different to the one of a simplex cable.
Connections
Line definition Name Sub-D 9 pin Cable color Line status
Positive power supply : DTR 4 white ON (HIGH)
Negative power supply RTS 7 brown OFF (LOW)
Data (instrument to periphery) RXD 2 yellow INPUT
Data request: TXD 3 green "?" + <CR>
Note : In case of data sending from the instrument, the hold mode will be active. To disable the Hold
mode simply do a new data request.
Remote commands
Format
[¦ C1-Cn ¦ { S1-Sn } ¦ CR ]
C1-Cn: command of 2 to 3 characters
S1-Sn: 0/1 : command disabled/activated
? : status request
+XXX.YYY: entering numerical values
List of remote commands
This list shows the main remote commands applied using DUPLEX instruments.
<NOR> Places the instrument in Measuring mode (or in Reference mode if the keyboard is
disabled)
<MOD?> The instrument sends its operating mode (NOR, REF, MIN, MAX, DEL, TOL1)
<STO0>, <STO1> Disables, enables measuring value freeze
<RST> Resets the instrument to its initial parameters
<SET?> The instrument sends its main parameters: (MM RES2 REF1 etc)
Note: B1 battery OK , B0 replace the battery
<ID?> The instrument sends its identification code:
<OUT0>, <OUT1> Disables, enables continuous transfer of the displayed value
<OFF> Switches off the instrument
<ON> Switches on the instrument (No command echo when the instrument is switched on !)
<PRI>, <?> The instrument sends the displayed value. Note: in tolerance mode, the value is followed
by the symbols ‘<‘, ‘=‘ or ‘>‘.
<MM>, <IN> Changes the measurement unit
<RES2>, <RES3> Changes the resolution: <RES2>: 0.001 mm, <RES3>: 0.01 mm
<REF1>, <REF2> Changes the reference
<PRE> Recalls the preset