ICS N4865A User manual

ICS
ELECTRONICS
ICS
a division of Systems West Inc.
MODEL N4865A
GPIB
GPIB
GPIB
LAN Adapter
LAN Adapter
LAN Adapter
LAN Adapter
LAN Adapter
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
Instruction Manual
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A
N4865A

i
MODEL N4865A
GPIB
LAN Adapter
Instruction Manual
7034 Commerce Circle, Pleasanton, CA 94588
Phone [phone], Fax [phone] Publication Number 120203
Web Site http://www.icselect.com August 2009 Edition Rev x3
ICS
ELECTRONICS
ICS
division of Systems West Inc.

ii
LIMITED WARRANTY
Within 12 months of delivery, ICS Electronics will repair or replace this product,
at our option, if any part is found to be defective in materials or workmanship (la-
bor is included). Return this product to ICS Electronics, or other designated repair
station, freight prepaid, for prompt repair or replacement. Contact ICS for a return
material authorization (RMA) number prior to returning the product for repair.
CERTIFICATION
ICS Electronics Corporation certifi es that this product was carefully inspected
and tested at the factory prior to shipment and was found to meet all requirements
of the specifi cation under which it was furnished.
EMI/RFI WARNING
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause inter-
ference to radio communications. The Model N4865A has been tested and found
to comply with the limits for a Class A computing device pursuant to Subpart J of
Part 15 of the FCC Rules and to comply with the EEC Standards EN 55022 and EN
50082-1, which are designed to provide reasonable protection against such interfer-
ence when operated in a commercial environment. Operation of this equipment in
a residential area is likely to cause interference, in which case the user, at his own
expense, will be required to take whatever measures may be required to correct
the interference.
Certifi cate of Compliance reproduced in Figure 1-3.
Certifi cate of Compliance reproduced in Figure 1-3.
TRADEMARKS
The following trademarks referred to in this manual are the property of the
following companies:
VEE is a trademark of Agilent, Palo Alto, CA
LabView is a Trademark of National Instruments, Austin, TX
ICS and GPIB AnyWhere are trademarks of ICS Electronics, Pleasanton, CA
© 2009 ICS Electronics div of Systems West Inc.

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General Information
Product Description, Specifi cations, IEEE-488 Interface, Ethernet
Interface, HTML Pages, VXI-11 Conformance, Factory Settings,
Indicators, Physical Specifi cations, Certifi cations and Accessories.
Installation
Shipment Verifi cation, Installation Guide, Confi guration Settings,
Confi guration Methods, LED Header, Jumper Settings and Rack
Mounting Instructions.
Operation
Introduction, Operation, GPIB Operation, Web Server Operation,
Programming Guidelines and OEM Documentation.
Theory of Operation
Block Diagram Description
Maintenance, Troubleshooting and Repair
Maintenance, Troubleshooting Guide, Selftest Error Codes,
Reseting Default Network Settings, Updating Firmware, and Repair
Information
Appendices
A1 IEEE-488.1, IEEE-488.2 and SCPI Descriptions
A2 VXI-11 RPCgen Information
A3 ICS RPC Confi guration Commands
Index
Contents
2
4
5
I
3
1
A

1-1
1
1
General Information
1.1 INTRODUCTION
This section provides a description and specifi cations for ICS's Model N4865A
GPIB
LAN Adapter.
1.2 DESCRIPTION
The Model N4865A GPIB
LAN Adapter is a hardware module that provides
an GPIB Interface for Agilent DSO/MSO7000 Series and DSO/MSO9000
Series oscilloscopes. Using the N4865A, GPIB applications running on a
computer can transparently interface to a LAN-based oscilloscope just as if it
were a GPIB oscilloscope
The Model N4865A is designed to interface with and control Agilent DSO/
MSO7000 Series and DSO/MSO9000 Series oscilloscopes. The N4865A
has two ways to connect to an oscilloscope after power turn-on and selftest.
The user can specify an IP address for the oscilloscope and the N4865A will
attempt to connect to it. If the N4865A's AutoFind function is enabled, the
N4865A will do an UDP broadcast and attempt to connect to the fi rst VXI-11.3
compatible oscilloscope that replies to the broadcast. When the N4865A has
established VXI-11 channel connections to the oscilloscope, the N4865A is
then ready to accept GPIB bus commands and device specifi c messages for its
companion oscilloscope.
The N4865A follows the IEEE-488.2 Message Exchange Protocol when
handling GPIB commands and device messages and should only be used with
IEEE-488.2 compatible GPIB Controllers. GPIB commands are converted to
VXI-11.3 equivalents and transmitted to the companion oscilloscope. Device
specifi c data messages are transparently passed to the oscilloscope and oscil-

1-2
1
loscope replies are transparently passed back to the GPIB Controller.
The N4865A can accept reverse channel Service Requests and will assert SRQ
on the GPIB bus after reading the oscilloscopes Status Byte Register.
The N4865A's operation and network settings are completely programmable
by commands from its Ethernet interface, eliminating the need to open the unit
to change or verify a function setting. The setup parameters can be changed
with any Internet browser. All settings are stored in the N4865A's internal
nonvolatile memory. A rear panel LAN Reset button allows the user to return
the N4865A to its default network settings at any time.
The N4865A and its companion oscilloscope can be placed anywhere on the
GPIB bus following the cabling guidelines in the IEEE-488.1 Standard. In
addition, you can have multiple N4865A's on a GPIB bus, each with its unique
GPIB address.
ICS's N4865A Interface is packaged in ICS's small metal Minibox™ case which
provides proven EMI/RFI protection and rack mounting capability. Rear panel
RJ-45 and GPIB connectors provide access to the network and GPIB bus. Front
panel LEDs provide visual network and GPIB bus status and diagnostic help
for troubleshooting system problems.

1-3
1
1.3 MODEL N4865A SPECIFICATIONS
The following specifi cations apply to all N4865A models. Options for your
unit may be found by comparing the list below to those listed on the Ethernet
label on your unit.
N4865A - X General Model Number
Option Codes
-6 Special settings
-7 Special Program
-8 Hardware modifi cation
-9 Factory Rack Mounted

1-4
1
1.4 IEEE 488 INTERFACE
1.4.1 488.1 Capabilities
The N4865A's 488 Bus interface meets the IEEE STD 488.1-1987 standard
and has the following capabilities:
SH1, AH1, T6, L4, SR1, PP0, DC0, RL0, DT0, C1 - C4 and C9
The N4865A's GPIB Bus drivers incorporate powerup/down protection to
prevent sending invalid data to the bus. GPIB fanout is up to 14 devices.
1.4.2 GPIB Addresses
The N4865A's GPIB primary address is entered and saved in fl ash memory
when the unit is confi gured. Confi guring is done via the N4865A's Ethernet
Interface.
Primary address range is 0 - 30. The default GPIB address is 4.
1.4.3 Conversion Operation
The N4865A follows the IEEE-488.2 Message Exchange Protocol when han-
dling GPIB commands and device messages.
1.4.4 Device Messages
All device data messages sent to the N4865A must be terminated with EOI
asserted on the last character. The N4865A sends data received from the
GPIB bus to the companion oscilloscope with a
device_write
RPC. When the
N4865A is addressed to talk, it sends a
device_read
RPC to the companion
device_read RPC to the companion device_read
oscilloscope to read the expected reply. The N4865A will assert EOI when it
outputs the last character of the received response if the END bit was asserted
in the
device_read
response packet.
device_read response packet. device_read
Large Listen messages are handled by holding off the GPIB bus while a buffer
of data is transferred to the oscilloscope. Large data responses are processed by
reading multiple talk buffers worth of data from the oscilloscope and outputting
them to the GPIB bus until a response packet is received from the oscilloscope
with the END bit asserted.
GPIB Listen buffer 1024 bytes (see Note 1)
GPIB Talk buffer 1024 bytes (see Note 1)
Note 1. Working buffer size may be smaller if the companion oscilloscope reports smaller maximum
packet sizes in its
create_link
response.
create_link response.create_link

1-5
1
When the N4865A is transistioned to the Listen Active State from the Talk
Active State, it discards any data in the GPIB talk buffer. Similarly, when the
N4865A is transistioned to the Talk Active State from the Listen Active State,
it discards any data in the GPIB listen buffer
1.4.5 Data Transfer Rate
The following are short term data rates:
> 17 kbytes/second to the GPIB bus from 4865 memory.
> 20 kbytes/second from the GPIB bus to 4865 memory.
1.4.6 Transfer Delays
The following times are averages and vary depending upon what the 4865
was doing when the GPIB command or query occurred, the Ethernet network
loading and oscilloscope reaction time.
Short device commands 18 milliseconds typical
*IDN? Queries 46 milliseconds typical
1.4.7 Remote-Local Operation
The N4865A uses the
device_remote
and
device_local
RPCs to transmit the
device_local RPCs to transmit the device_local
GPIB Remote and Local states to the companion oscilloscope. The N4865A
does not support the GPIB Remote with Lockout or the Local with Lockout
states.
1.4.8 Device Clear and Selected Device Clear
When the N4865A receives a Selected Device Clear or a Device Clear on the
GPIB bus, it sends a
device_clear
RPC to the companion oscilloscope and
device_clear RPC to the companion oscilloscope and device_clear
clears its GPIB talk and GPIB listen buffers.
1.4.9 Group Execute Trigger (GET)
When the 4896 receives a Group Execute Trigger (GET) on the GPIB Bus, any
data in the GPIB listen buffer is sent to the companion oscilloscope and then
the N4865A sends a
device_trigger
RPC to the companion oscilloscope.
device_trigger RPC to the companion oscilloscope. device_trigger

1-6
1
1.4.10 SRQs
When the N4865A receives a Reverse Channel Service Request, it sends a
device_readstb
RPC to the companion oscilloscope to obtain the Status Register
response and assert the GPIB SRQ signal. The SRQ signal is deasserted when
the N4865A is Serial Polled or when the N4865A learns that the companion
oscilloscope has deasserted its MSS bit.
1.4.11 Serial Poll Responses.
The N4865A periodically reads the companion oscilloscope's Status Byte
Register and use the response to update its Status Byte. The oscilloscope
polling rate is 3 Hz.