B&K Precision 889B - Manual - Manual (Page 18)

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3. Operation Modes
There are four operation modes in the 889B. They are Normal, Binning, Remote and Remote Binning modes.
By pressing the Remote button, users can select one of the 4 operation modes above.
 Normal Mode:
The Normal mode is the default operation mode when power on. It is a local mode that the 889B is controlled
by the keypads and the results of the measurement will be sent to both LCD display and a remote USB
equipped PC through the build-in USB port.
 Binning Mode:
The Binning mode is reserved for future use (such as GPIB). Currently, it is set to work the same way as the
Normal mode that receives commands from the keypads and sends the results of measurement to both LCD
display and a remote PC through the USB port.
 Remote Binning Mode:
In the Remote Binning mode, the “RMT Bin” on the LCD will be lit, the operation of 889B is controlled by a
remote USB equipped PC or terminal, and the results of the measurement will be simultaneously sent to the
local LCD display and remote workstation through the USB port.
In this mode all functional keypads except Remote button are locked.
Remote Binning mode is opened for users to design your own private, fast and high efficient application
programs. Users can design a server or driver (any software component that can do server’s job) with Graphic
interface, OSI network model, and powerful interpreter built in it to support Graphic display, Network
connectivity, structure command (SCPI, IEEE488 etc.) interpretations, and let it be a bridge between a higher
level application program such as VB, VISUAL C++, EXCEL, ACCESS etc. and the 889B. It is described in
the following figure.
The communication protocol between the 889B and a remote USB equipped PC is described as follows.
1. The commands that will be sent from a remote PC to the 889B are used to set-up the machine to a
selected measurement mode.
The command syntax is:
MOD current-state-code
It always starts with MOD follows by a space and then the current state code. The current state code that
is defined in the table below is 3 bytes (24 bits) long, bit-23, 22, 21… bit-0, where bit-23 is the MSB and bit-0
is the LSB.
Model
889B
Server:
COM, DCOM, ATL,
CONTROL,
AUTOMATION EXE
Built in:
Graphic interface,
OSI network model,
and/or powerful
Interpreter or Parser
VB, VISUAL
C++, EXCEL,
ACCESS etc.