Jadak Photo Research SpectraScan PR-7 Series, User Manual

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Appendix 1
– Remote Control Mode
115
Appendix - 1 R
EMOTE
C
ONTROL
M
ODE
Remote Control of the PR-7XX is accomplished using commands sent from the PC in ASCII (text) strings to the
instrument. These commands are then executed and the requested information including measured values or
instrument setup parameters are returned to the PC.
The PR-7XX is controlled from a personal computer over the Universal Serial Bus (USB) interface. This is
achieved by using a driver that parses appropriate ASCII (text) commands from the PC application then transmits
them over the USB I/F to the PR-7XX.
Communication protocol is identical to RS-232 communications. The USB driver emulates an
RS-232 interface including opening a COM port, setting a baud rate, parity, stop bits and flow control. This makes
Remote Control operations available for application software written in Microsoft Visual Basic, Microsoft C++ or
any other language that is capable of opening communicating via a COM port.
Note: While the PR-7XX is in Remote Mode, the instrument
’s touch screen is disabled.
I
NSTALLING THE
USB D
RIVER
Prior to commencing Remote Mode operations, the PR-7XX Utilities software including the USB driver must be
installed on your Windows based PC running Windows 7 (or later) operating systems. Please refer to the USB
portion of the
Connectivity section for complete installation instructions.
U
SING
R
EMOTE
C
ONTROL
C
OMMANDS
1. Open the Device Manager .
2. Click on Ports (COM & LPT).
FIGURE 95. - WINDOWS DEVICE MANAGER
3. Note the COM port assigned to the PR Instrument .