GW Instek GDS-3000 Series Owner's manual

Digital Storage Oscilloscope
GDS-3000 Series
PROGRAMMING MANUAL
GW INSTEK PART NO. 82DS-33040IC1
ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will Corporation.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
right to change specifications, equipment, and maintenance
procedures at any time without notice.
Windows is a registered trademark of Microsoft Corporation in the United States and other countries.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

TABLE OF CONTENTS
3
Table of Contents
INTERFACE OVERVIEW ..................................................... 4
Front Panel Overview ................................. 4
Interface Configuration .............................. 5
COMMAND OVERVIEW .................................................. 23
Command Syntax ..................................... 23
List of Commands in Functional Order .... 25
COMMAND DETAILS ...................................................... 31
Common Commands ............................... 32
Acquisition Commands ............................ 33
Autoscale Commands .............................. 36
Vertical Commands .................................. 36
Math Commands ..................................... 41
Cursor Commands ................................... 47
Display Commands .................................. 54
Hardcopy Commands .............................. 56
Measure Commands ................................ 58
Reference Commands .............................. 72
Run Command ......................................... 75
Stop Command ........................................ 75
Single Command...................................... 75
Force Command....................................... 76
Split Window Command........................... 76
Timebase Commands............................... 77
Trigger Commands................................... 80
System Commands .................................. 90
Save/Recall Commands ........................... 92
Go_NoGo Commands .............................. 97

GDS-3000 Programming Manual
4
INTERFACE OVERVIEW
This manual describes how to use the GDS-3000’s
remote command functionality and lists the
command details. The Overview chapter describes
how to configure the GDS-3000 USB remote
control interface, Ethernet interface, GPIB interface
(using the optional GPIB to USB adapter) and RS-
232 interface.
Front Panel Overview
VOLTS/DIV VOLTS/DIV VOLTS/DIV VOLTS/DIV
POSITION POSITION POSITION
TIME/DIV
POSITION
HORIZONTAL
VARIABLE
W
AC
BW
50
W
75
VERTICAL
LEVEL
POSITION
TRIGGER
W
AC
BW
50
W
75
W
AC
BW
50
W
75
W
AC
BW
50
W
75
CH4CH3CH2CH1EXT TRIG
POWER 2V
Window
Split
Select Zoom
CH1 CH2 CH3 CH4
R
B1
Measure Cursor
Display Help
Test
Save/Recall Utility
Menu
50 %
Force - Trig
Autoset
Single
Run/Stop
Setup
Auto-Range
Default
Acquire
CAT
MW15pF
300Vpk MAX.
1
5 Vrms MAX.
W
50 W 75&
CAT
MW15pF
300Vpk MAX.
1
5 Vrms MAX.
W
50 W 75&
M
B2
MATH
REF
BUS
Off
Menu
Print
Save
Digital Storage Oscilloscope
GDS-3354 350 MHz 5 GS/s
Visual Persistence Oscilloscope
LCD Print key
Variable knob
and select key
Split window
cluster
Horizontal
controls
Trigger
controls
CH1~4
input
Vertical
controls
Math and
Reference
keys
Function
keys
Ext trigger
input
USB
Probe compensation,
Ground port
Power
button
Menu key
Bus keys
Bottom
menu keys
Side menu keys
Print/Save key
Print/Save key
4 channel model shown.

INTERFACE OVERVIEW
5
Interface Configuration
Configure USB Interface
USB
configuration
PC side connector
Type A, host
GDS-3000 side
connector
Type B, slave
Speed
1.1/2.0 (Full speed)
USB Class
CDC (communications device
class)
Panel operation
1. Press the Utility key.
Utility
2. Press I/O from the bottom menu.
3. Press USB Device Port from the
side menu and choose Computer.
4. Press Computer from the side
menu.
5. Connect the USB cable to the rear
panel slave port.
6. When the PC asks for the USB driver, select
dso_vpo.inf downloadable from GW website,
www.gwinstek.com, the GDS-3000 product
corner. The driver file automatically sets the
GDS-3000 as a serial COM port.

GDS-3000 Programming Manual
6
Configure RS-232C Interface
RS-232C
configuration
Connector
DB-9, Male
Baud rate
2400, 4800, 9600, 19200, 38400,
57600, 115200
Parity
None, Odd, Even
Data bit
8 (fixed)
Stop bit
1, 2
Panel operation
1. Press the Utility key.
Utility
2. Press I/O from the bottom menu.
3. Press RS-232C from the side menu.
4. Use the side menu to set the Baud
Rate.
Baud Rate
2400, 4800, 9600, 19200, 38400,
57600, 115200
5. Press Stop Bit to toggle the number
of stop bits.
Stop Bits
1, 2
6. Press Parity to toggle the parity.
Parity
Odd, Even, None

INTERFACE OVERVIEW
7
7. Press Save Now to save the settings.
8. Connect the RS-232C cable
to the rear panel port: DB-9
male connector. For a
functionality check, see page
11.
Pin assignment
1 2 3 4 5
6 7 8 9
2: RxD (Receive data)
3: TxD (Transmit data)
5: GND
4, 6 ~ 9: No connection
PC connection
Use the Null Modem connection as in the below
diagram.
GDS-3000 PC
RxDPin2 RxD Pin2
GNDPin5 GND Pin5
TxD Pin3TxDPin3
Configure the Ethernet Interface
Ethernet
configuration
MAC Address
Domain Name
Instrument Name
DNS IP Address
User Password
Gateway IP Address
Instrument IP
Address
Subnet Mask
HTTP Port 80 (fixed)

GDS-3000 Programming Manual
8
Background
The Ethernet interface is used for remote control
over a network and to retrieve the scope’s screen
shot, system information etc,. Please note that the
all GDS-3000 series were designed with a build-in
web server.
Panel operation
1. Press the Utility key.
Utility
2. Press I/O from the bottom menu.
3. Press Ethernet from the side menu.
4. Set DHCP/BOOTP to On or Off
from the side menu.
Note
IP addresses will automatically be assigned with
DHCP/BOOTP set to on. For Static IP Addresses,
DHCP/BOOTP should be set to off.

INTERFACE OVERVIEW
9
5. Use the Up and Down arrows on
the side menu to navigate each
Ethernet configuration item.
Items
MAC Address, Instrument Name,
User Password, Instrument IP
Address, Domain Name, DNS IP
Address, Gateway IP Address,
Subnet Mask
Note: HTTP Port is fixed at 80.
6. Use the Variable knob to highlight
a character and use the Select key
to choose a character.
VARIABLE
Left Right
Press Backspace to delete a
character.
7. Press Save Now to save the settings.
8. Connect the Ethernet cable to the
rear panel of the GDS-3000.

GDS-3000 Programming Manual
10
Configure GPIB Interface
To use GPIB, the optional GPIB to USB (GUG-001) adapter must be
used. The GPIB address can be configured for the GUG-001 from the
utility menu. See the GUG-001 user manual for more information.
Configure GPIB
1. Insert the GUG-001 USB 2.0 A-B
type cable into the rear panel USB
device port.
2. Press the Utility key.
Utility
3. Press I/O from the bottom menu.
4. Press USB Device Port from the
side menu and choose Computer.
5. Press GPIB from the side menu.
6. Use the variable knob to set the
GPIB Address from the side menu.
Range
1 ~ 30
GPIB constraints
Maximum 15 devices altogether, 20m cable
length, 2m between each device
Unique address assigned to each device
At least 2/3 of the devices turned On
No loop or parallel connection

INTERFACE OVERVIEW
11
USB/RS-232C Remote Control Software
Terminal
application
(USB/RS-232C)
Invoke the terminal application such as hyper
terminal program. For RS-232C, set the COM port,
baud rate, stop bit, data bit, and parity
accordingly.
To check the COM port No, see the Device
Manager in the PC. For WinXP, Control panel →
System → Hardware tab.
Functionality
check
Run this query command via the terminal.
*idn? (use line feed character as the message
terminator)
This should return the Manufacturer, Model
number, Serial number, and Firmware version in
the following format.
GW, GDS-3354, EK200001, V1.08
PC Software
(USB only)
The proprietary PC software FreeWave is
downloadable from the GWInstek website for
remote control.

GDS-3000 Programming Manual
12
Using the Ethernet Interface
Background
The following example will show you how to use
the Ethernet interface to access the scope from a
browser and how to setup the scope as a socket
server for remote control using the National
Instruments Measurement and Automation
Explorer (NI MAX) software. When using the
MAX software the scope is setup to communicate
with the software over a specific port.
Note
For further information about National
Instruments and the NI MAX software, please see
the NI website at www.ni.com.
Panel operation
1. Ensure that your PC and the scope are
connected to the same LAN.
2. Go to Network Connections in the Windows
Control Panel. For example:
Control Panel>Network and Sharing>Manage
Network Connections.
3. Double click on the Local Area Connection icon
that is used by the PC/DSO.

INTERFACE OVERVIEW
13
4. The Local Area Connection Status panel
appears.
Click the Properties icon.

GDS-3000 Programming Manual
14
5. The Networking tab will be shown.
6. Double click on the Internet Protocol Version 4
(TCP/IPv4) option in the list.

INTERFACE OVERVIEW
15
7. The Internet Protocol Version 4 (TCP/IPv4)
Properties will appear.
Manually set the IP address. (Click the Use the
following IP address radio button to allow
manual IP addresses).
8. Press the Utility key.
Utility
9. Press I/O from the bottom menu.
10. Press Ethernet from the side menu.

GDS-3000 Programming Manual
16
11. Set the DSO Ethernet settings. See page 7 for
details.
12. Press the Utility key.
Utility
13. Press I/O from the bottom menu.
14. Press Socket Server from the side
menu.
15. Turn Socket Server ON from the side menu.
16. Press Select Port and use the Variable knob to
set the port number to 3000.
17. Press Set Port to save the socket server
configuration.

INTERFACE OVERVIEW
17
18. To check to see if the Ethernet settings are
working enter the DSO’s IP address into a
browser: 172.16.1.3
19. Next open the NI MAX software to configure
the socket settings.

GDS-3000 Programming Manual
18
20. Right-click Devices and Interfaces and select
Create New.

INTERFACE OVERVIEW
19
21. Select VISA TCP/IP Resource and click Next.
22. Select Manual Entry or Raw Socket.

GDS-3000 Programming Manual
20
23. Enter the IP address and Socket number of the
DSO.
Press Validate.
24. When Validate has been clicked, the following
splash screen should appear.
25. Press OK, and then press Finish on the New
VISA TCP/IP Resource panel.