BNC 577 - Manual (Page 26)

Model 577 Operating Manual 20
It may be necessary to cycle power on the 577 after connecting a USB serial cable between the 577 and the PC.
USB communication notes:
The correct drivers must be installed on the personal computer before communication can be
accomplished via USB.
The BAUD rates on the PC and on the pulse generator must match for successful communication.
The USB port’s BAUD rate on the pulse generator can be set using the SCPI command
“:SYSTem:COMMunicate:USB:BAUD ” where can be:
4800
9600
19200
38400
57600
115200 (default)
USB 1.0 specification is used. The USB cable can be removed without “unplugging” the device in the
operating system environment.
8.3 GPIB Interface
Also known as IEEE- 488, a GPIB computer interface is optional on the 577. Before using this interface, the
address must be set using the GPIB address menu item.
8.4 Ethernet Interface
A RJ- 45 jack is optional on the 577. This interface will use a module to transfer data through the Ethernet port to
the host computer.
8.4.1 IP Address and Raw TCP/IP Connection
This document describes one of the most popular methods of setting up Ethernet communication for the Berkeley
Nucleonics Corp. pulse generators. The method discussed is Raw TCP/IP communication.
The Ethernet module used in Berkeley Nucleonics Corp. pulse generators is a “Digi Connect ME” device
manufactured by Digi International, Inc. It supports virtually all practical Ethernet communication methods. A set
of utilities and documentation by Digi is included on the CD shipped with the pulse generator.
This discussion assumes that the Digi utilities included with your pulse generator and National Instruments VISA
(version 3.3 in this procedure, see National Instruments’ website) are installed. The procedures discussed have
been prepared using Windows XP service pack 2.
8.4.2 Determining IP Address
The Digi module has been reset to factory defaults before it left the manufacturing facility. In this mode, it is ready
to be assigned an IP address by the local DHCP server. If a crossover cable is being used, the Ethernet device
will assume a default IP address.
The Digi utility “Digi Device Discovery” can be used to determine the IP address that is currently assigned to the
Ethernet module. Go to
“Start, All Programs, Digi Connect, Digi Device Discovery”. When the utility opens, it
scans the LAN looking for Digi Ethernet modules. It may take a minute after plugging in or powering the Ethernet
module before the LAN negotiates the connection with the Digi module. Click on
“Refresh View” in the left column
after a minute or so if the utility fails to see the unit when you start it. In some situations it is possible that the