Rice Lake Synergy 680HE, Technical Manual

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Installation
© Rice Lake Weighing Systems ● All Rights Reserved 9
2.4.8 Micro USB Device Communications
The Micro USB port, J7 connector ( Section 2.5 on page 11 ), is intended to be connected to a PC only and should only be used
as a service port. It appears as a Virtual COM Port and is assigned a “COMx” designation. Applications communicate through
the port like a standard RS-232 communications port.
The driver must be installed on the PC before the device port can be used. With the PC and 680HE powered on, connect a USB
cable from the PC to the micro USB connector (J7) on the 680HE. The PC recognizes if a device has been connected, and
attempts to install the driver needed to make it work. The driver can also be downloaded from the Rice Lake website .
If using Windows 7 or later and the PC is connected to the Internet, the operating system may be able to install the
drivers automatically.
When the individual drivers are installed, a new COM Port designation is assigned for each physical USB port the 680HE is
connected to on the PC.
For example, if the PC has two physical RS-232 COM Ports, they most likely are designated COM1 and COM2. When
connecting the 680HE to a USB port on the PC, it is assigned the next available port designation, or in this case, COM3. When
plugging into the same physical USB port on the PC, the port designation is again COM3. If plugging into another physical USB
port on the PC, it is assigned the next available designation, in this case COM4.
After the drivers are installed, use Windows
®
Device Manager to determine the COM Port designation which was assigned to
the USB port, or open the application to be used with the 680HE, such as Revolution, to see which ports are available.
Configuration of the Micro USB port is done in the USBCOM sub-menu under PORTS in setup mode.
The port can be configured as either a demand port for EDP commands and printing, or as a data streaming port. Other settings
include the termination character(s), echoes, responses, the end-of-line delay and whether or not the 680HE displays a 'print'
message when a print format sends data out the port.
If a computer application has an open communications connection through the Micro USB device port and the
physical cable connection is interrupted, a soft reset must be performed on the 680HE or the power must be cycled
to the 680HE; the connection in the computer application must be disconnected and then reconnected before it
continues to communicate with the 680HE.
For the Micro USB device port, it does not matter what the settings are for Baud, Data Bits, Parity and Stop Bits in the
computer software. The port communicates in the same way regardless of these settings.
This port is not a host port and is not intended to be connected to other devices such as keyboards, memory sticks
or printers.
Note
Note