Pickering 41-765 User manual

pickeringtest.com
Issue 2.0 February 2022
41/43-765 User Manual
PXI/PXIe Analog Output/Current Loop Simulator Module

Page ii
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Page (II) REED RELAY MODULE 40-110/115/120/125
pickering
© COPYRIGHT (2022) PICKERING INTERFACES. ALL RIGHTS RESERVED.
No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by
any means without the written permission of Pickering Interfaces.
Technical details contained within this publication are subject to change without notice.
ISO 9001
Reg No. FM38792

Page iii
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Page (III)
REED RELAY MODULE 40-110/115/120/125
pickering
TECHNICAL SUPPORT
For Technical Support please contact Pickering Interfaces either by phone, the website or via e-mail.
WARRANTY
All products manufactured by Pickering Interfaces are warranted against defective materials and workmanship for a period of
three years, excluding programmable power supplies, from the date of delivery to the original purchaser. Any product found to be
defective within this period will, at the discretion of Pickering Interfaces be repaired or replaced.
Products serviced and repaired outside of the warranty period are warranted for ninety days.
Extended warranty and service are available. Please contact Pickering Interfaces by phone, the website or via e-mail.
ENVIRONMENTAL POLICY
Pickering Interfaces operates under an environmental management system similar to ISO 14001.
Pickering Interfaces strives to full all relevant environmental laws and regulations and reduce wastes and releases to the
environment. Pickering Interfaces aims to design and operate products in a way that protects the environment and the health and
safety of its employees, customers and the public. Pickering Interfaces endeavours to develop and manufacture products that can
be produced, distributed, used and recycled, or disposed of, in a safe and environmentally friendly manner.
Worldwide Technical Support and Product Information
pickeringtest.com
Germany
Tel: [phone]
E-mail: [email protected]
Sweden
Tel: [phone]
E-mail: [email protected]
USA
Tel: (West) [phone]
Tel: (East) [phone]
E-mail: [email protected]
Czech Republic
Tel: [phone]
E-mail: [email protected]
France
Tel [phone]
E-mail [email protected]
Pickering Interfaces Headquarters
Stephenson Road Clacton-on-Sea CO15 4NL United Kingdom
Tel: [phone]
E-Mail: [email protected]
China
Tel: [phone]
E-mail: [email protected]

Page iv
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Page (IV) REED RELAY MODULE 40-110/115/120/125
pickering
MEANING / DESCRIPTION SYMBOL
PROTECTIVE EARTH (GROUND)
To identify any terminal which is intended for connection to an external conductor for
protection against electric shock in case of a fault, or the terminal of a protective earth
(ground) electrode.
DANGEROUS VOLTAGE
To indicate hazards arising from dangerous voltages.
WARNING / CAUTION
An appropriate safety instruction should be followed or caution to a potential hazard
exists.
Refer to the relevant instructions detailed within the product manual.
HEAVY
If this product is heavy reference should be made to the safety instructions for
provisions of lifting and moving.
STATIC SENSITIVE
To indicate that static sensitive devices are present and handling precautions should
be followed.
!
kg
SAFETY SYMBOLS
PRODUCT SAFETY
The following safety symbols may be used on the product and throughout the product documentation.

Page v
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Copyright Statement ...................................................................ii
Technical Support and Warranty................................................iii
Contents (this page)....................................................................v
Section 1
Technical Specication...............................................................1.1
Section 2
Technical Description .................................................................2.1
Functional Description..........................................................2.1
Connectivity Notes................................................................2.3
Section 3
Installation....................................................................................3.1
Pre-Operation Checks...........................................................3.1
Hardware Installation ............................................................3.2
Software Installation .............................................................3.2
Testing Operation ..................................................................3.3
Section 4
Programming Guide....................................................................4.1
Programming Options For Pickering PXI/PXIe Modules ...4.1
Programming The Module ....................................................4.2
Programming Control - C++ Functions ...............................4.8
Hardware Interlock API functions ........................................4.9
General Soft Front Panel ......................................................4.10
Using Pickering Drivers in LabVIEW ...................................4.11
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting .........................................................................6.1
Section 7
Maintenance Information............................................................7.1
Software Update ....................................................................7.1
Verication & Adjustment Procedure ..................................7.2
Verication Test Results .......................................................7.4
Relay Look-up Table..............................................................7.8
CONTENTS

Page vi
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
THIS PAGE INTENTIONALLY BLANK

SECTION 1 - TECHNICAL SPECIFICATION
Page 1.1
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
ISSUE 2.0 FEB 2022
yAvailable as PXI or PXIe Modules
yIdeal for 4–20 mA Industrial Current Loop Simulation
yMultiple Modes of Operation: 4-20 mA, 0-24 mA,
+/-24 mA, 0-5 V, +/-12 V & +/-5 V
ySelf-powered with Sourcing or Sinking
yFrom 4 up to 16 Channels in One Slot Module
yAbility to Work in Full Isolation to Avoid Ground Loops
yHardware Interlock Feature
y16-bit Resolution – Output Control Within 1µA
yAccuracy of ±0.1 % FSR
yProgrammable Slew Rate
yShort and Open Simulation
yPXI Versions Supported by PXI or LXI/USB Chassis
yKernel and VISA Drivers
y3 Year Warranty
Backplane
Power Current
/Voltage
Conditioner
(DAC Out)
Internal
Power
Supply
41/43-765 Transmitter/Receiver
Out
Gnd
In
Gnd
Current Sinking/Sourcing
Current
/Voltage
Conditioner
(DAC Out)
41/43-765 Transmitter/Receiver
Out
Gnd
In
Gnd
Current Sinking/Sourcing
Isolation
External
Power
Supply
V+
V+
Gnd
Block Diagram for 4-20 mA Current Loop Example
The 41-765 (PXI) and 43-765 (PXIe) are designed to meet the
requirements of industrial control applications utilising
current loops 4 – 20 mA. It consists of up to four 16-bit,
digital-to-analogue converters (DAC), capable of creating
four current outputs each. Output current within 0 - 4 mA
and 20 mA - 24 mA,
give the ability to simulate error or extra signalling
conditions. The ±24 mA mode gives the ability to simulate
either sourcing or sinking sensor.
Typical applications of this module span across: 4 – 20 mA
current loops, analogue output modules, programmable
logic controllers (PLCs), industrial automation, sensor
transmitters, process control.
The outputs can work in one of several modes of operation:
4-20 mA, 0-24 mA or +/-24 mA. As well as low power
voltage modes of operation: 0-5 V, +/-12 V or +/-5 V.
Each DAC of the module can be powered up independently,
2-Wire Connection
3-Wire Connection
either from the chassis
power supply or can
work as fully isolated
unit, being powered up
from an external source.
This approach removes
issues of ground
looping. The DAC is
always actively sourcing
or sinking, so no voltage
source is required in a
current loop, simplifying
the test system.
Each channel of the
41/43-765 module is
able to simulate the
short and open circuit
conditions that can be
experienced in a system
due to faulty wiring or
sensors.

Page 1.2
SECTION 1 - TECHNICAL SPECIFICATION
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
pickering
Analog Output Module, 41/43-765
pickeringtest.com
Overview
Functional Diagram for the 41/43-765 Analog Output Module
OUT1
OUT2
OUT3
OUT4
Vext1
External
Power
Supply
DAC
DAC 1
OUT5
OUT6
OUT7
OUT8
Vext2
External
Power
Supply
DAC
DAC 2
OUT9
OUT10
OUT11
OUT12
Vext3
External
Power
Supply
DAC
DAC 3
OUT13
OUT14
OUT15
OUT16
Vext4
External
Power
Supply
DAC
DAC 4
Isolator
Isolator
Isolator
Isolator
Front Panel
Connector
FP_GND*
Control
Logic
PXI/PXIe
Interface
PXI/PXIe Bus
4x Open
/Short
Switches
4x Open
/Short
Switches
4x Open
/Short
Switches
4x Open
/Short
Switches
Hardware
Interlock
Interlock
Backplane Power
GND1
GND2
GND3
GND4
GND**
* Front panel ground (FP_GND) is internally connected to chassis GND, however the grounds of the consecutive
DACs may become isolated and should not be externally connected to FP_GND.
** This pin (GND) is used for special interlock configurations only.

SECTION 1 - TECHNICAL SPECIFICATION
Page 1.3
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Analog Output Module, 41/43-765
pickeringtest.com
Specifications & Ordering Information
Specification
Number of Channels: 16, 12, 8 or 4
Output Current
(each Channel): 4-20 mA, 0-24 mA, +/-24 mA,
0-5 V, +/-12 V or +/-5 V
Resolution: 16 bit – less than 1 uA per 1 LSB
Error (typical*): ±0.1 FSR Total Unadjusted Error
DNL ±1 LSB
Fault Simulation: Open or Short Circuit
Channel Isolation: Full isolation mode in banks of 4
channels (per DAC)
External PSU input: 16.5 VDC to 60 VDC, 500 mA
* The extreme top and bottom ends of ranges may reach
±0.2% of FSR ±Resolution.
Power Requirements - 41-765
+3.3 V +5 V +12 V -12 V
0.25 A 0.55 A 0.8 A 0
Power Requirements - 43-765
+3.3 V +12 V
0.5 A 1 A
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0 °C to +55 °C
Up to 90 % non-condensing
5000 m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20 °C to +75 °C
Up to 90 % non-condensing
15000 m
PXI & CompactPCI Compliance - 41-765
The module is compliant with the PXI Specification 2.2.
Local Bus, Trigger Bus & Star Trigger are not implemented.
Uses a 33 MHz 32-bit backplane interface.
PXIe Compliance - 43-765
The module is compliant with the PXIe Specification 1.0.
Local Bus, Trigger Bus & Star Trigger are not implemented.
Mechanical Characteristics
41-765 - Single slot 3 U PXI (CompactPCI card).
43-765 - Single slot 3 U PXIe, compatible with PXIe hybrid
slot.
3D models for all versions in a variety of popular file
formats are available on request.
Connectors
41-765 - PXI bus via 32-bit P1/J1 backplane connector.
43-765 - PXIe bus via XJ3 and XJ4 backplane connectors.
Signals via front panel 78-pin male D-type connector, for
pin outs please refer to the operating manual.
Mating Connectors & Cabling
For other connection accessories for the 41/43-765 please
refer to the 90-006D 78-pin D-type Connector Accessories
data sheet where a complete list and documentation
can be found for accessories, or refer to the Connection
Solutions catalog.
Product Order Codes
PXI Analog Output / Current Loop Simulator Module
16 Channel
12 Channel
8 Channel
4 Channel
41-765-001
41-765-002
41-765-003
41-765-004
PXIe Analog Output / Current Loop Simulator Module
16 Channel
12 Channel
8 Channel
4 Channel
43-765-001
43-765-002
43-765-003
43-765-004
Product Customization
Pickering modules are designed and manufactured on our
own flexible manufacturing lines, giving complete product
control and enabling simple customization to meet very
specific requirements.
All customized products are given a unique part number,
fully documented and may be ordered at any time in the
future. Please contact your local sales office to discuss.
Note: If acceptance of the HART signaling is required
please contact the sales office.
Safety & CE Compliance
All modules are fully CE compliant and meet applicable
EU directives: Low-voltage safety EN61010-1:2010,
EMC Immunity EN61326-1:2013,
Emissions EN55011:2009+A1:2010.
43-765 Module
in PXIe Format

Page 1.4
SECTION 1 - TECHNICAL SPECIFICATION
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
pickering
Analog Output Module, 41/43-765
pickeringtest.com
Supporting Products & Software
We also offer customized cabling and have a free online Cable Design Tool
that can be used to create custom cable solutions for many applications.
Visit: pickeringtest.com/cdt to start your design.
Mass Interconnect
We recommend the use of a mass interconnect solution when an
Interchangeable Test Adapter (ITA) is required for a PXI or LXI based test
system. Our modules are fully supported by both Virginia Panel and MacPanel.
Pickering Reed Relays
We are the only switch provider with in-house reed relay manufacturing
capability via our Relay Division. These instrument grade reed relays feature
SoftCenter™ technology, ensuring long service life and repeatable contact
performance. To learn more, please go to: pickeringrelay.com
Chassis Compatibility
The PXI versions of this module must be used in a suitable chassis. They are compatible with the following chassis types:
• All chassis conforming to the 3U PXI and 3U Compact PCI (cPCI) specification
• Legacy and Hybrid Peripheral slots in a 3U PXI Express (PXIe) chassis
• Pickering Interfaces LXI or LXI/USB Modular Chassis
The PXIe versions of this module are compatible with the following chassis types:
• All chassis conforming to the 3U PXIe specification
• PXIe and Hybrid Peripheral slots in a 3U PXI Express (PXIe) chassis
Chassis Selection Guide
Standard PXI or hybrid PXIe Chassis from any Vendor:
• Mix our 1000+ PXI switching & simulation modules with
any vendor’s PXI instrumentation
• Embedded or remote Windows PC control
• Real-time Operating System Support
• High data bandwidths, especially with PXI Express
• Integrated module timing and synchronization
Pickering LXI or LXI/USB Modular Chassis—only accept
our 1000+ PXI Switching & Simulation Modules:
• Ethernet or USB control enables remote operation
• Low-cost control from practically any controller
• LXI provides manual control via Web browsers
• Driverless software support
• Power sequencing immunity
• Ethernet provides chassis/controller voltage isolation
• Independence from Windows operating system
Connectivity Solutions
We provide a full range of supporting cable and connector solutions for all our switching products—20 connector families
with 1200+ products. We offer everything from simple mating connectors to complex cables assemblies and terminal blocks.
All assemblies are manufactured by Pickering and are guaranteed to mechanically and electrically mate to our modules.
Connectors & Backshells Multiway Cable Assemblies RF Cable Assemblies Connector Blocks

SECTION 1 - TECHNICAL SPECIFICATION
Page 1.5
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Analog Output Module, 41/43-765
pickeringtest.com
Supporting Products & Software
© Copyright (2022) Pickering Interfaces. All Rights Reserved Pickering Interfaces maintains a commitment to continuous product development, consequently we reserve the right to vary from the description given in this data sheet.
Programming
Pickering provide kernel, IVI and VISA (NI & Keysight) drivers which are compatible with all Microsoft supported versions of
Windows and popular older versions. For a list of all supporting operating systems, please see: pickeringtest.com/os
The VISA driver is also compatible with Real-Time Operating Systems such as LabVIEW RT. For other RTOS support contact
Pickering. These drivers may be used with a variety of programming environments and applications including:
• Pickering Interfaces Switch Path Manager
• National Instruments products (LabVIEW, LabWindows/CVI, Switch Executive, MAX, TestStand, VeriStand, etc.)
• Microsoft Visual Studio products (Visual Basic, Visual C+)
• Keysight VEE and OpenTAP
• Mathworks Matlab
• Marvin ATEasy
• MTQ Testsolutions Tecap Test & Measurement Suite
Drivers for popular Linux distributions are available, other environments are also supported, please contact Pickering
with specific enquiries. We provide Soft Front Panels (SFPs) for our products for familiarity and manual control, as well as
comprehensive documentation and example programs to help you develop test routines with ease.
To learn more about software drivers and development environments, please go to: pickeringtest.com/software
Signal Routing Software
Our signal routing software, Switch Path Manager, automatically selects and energizes
switch paths through Pickering switching systems. Signal routing is performed by simply
defining test system endpoints to be connected together, greatly accelerating Test System
software development. To learn more, please go to: pickeringtest.com/spm
Diagnostic Relay Test Tools
eBIRST Switching System Test Tools are designed specifically for our PXI,
PCI or LXI products, these tools simplify switching system fault-finding by
quickly testing the system and graphically identifying the faulty relay.
To learn more, please go to: pickeringtest.com/ebirst
Three Year Warranty & Guaranteed Long-Term Support
All standard products manufactured by Pickering Interfaces are warranted against defective materials and workmanship
for a period of three years from the date of delivery to the original purchaser. Extended warranty and service agreements
are available for all our modules and systems with various levels to suit your requirements. Although we offer a 3-year
warranty as standard, we also include guaranteed long-term support—with a history of supporting our products for typically
15-20 years. To learn more, please go to: pickeringtest.com/support
Available Product Resources
We have a large library of product resources including success stories, product and support videos, articles and white
papers as well as application specific product brochures to assist when looking for the switching, simulation and
connection solutions you need. We have also published handy reference books on Switching Technology and for the PXI
and LXI standards.
To view, download or request any of our product resources, please visit: pickeringtest.com/resources

Page 1.6
SECTION 1 - TECHNICAL SPECIFICATION
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
pickering
THIS PAGE INTENTIONALLY BLANK

SECTION 2 - TECHNICAL DESCRIPTION
Page 2.1
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
The 41/43-765 is designed to meet the requirements of industrial control applications utilising current loops 4 –
20mA. It is designed in the form of a typical PXI/PXIe module, supported by a PXI/PXIe, chassis or Pickering’s LXI/
USB chassis. The module is also designed to support PXIe communication but not as hybrid - please contact the
Pickering sales ofce for details. A functional block diagram is provided in Figure 2.1.
The Analog Output/Current Loop Simulator Module is powered by +12V, +5V and +3.3V supplies via Compact PCI
connector J1.
The interface to the user test equipment is via a front panel mounted 78-pin male D-type connector, J2. A pinout of
the connector is shown in Section 5, for each population variant of the module.
The module comprises a PCB populated with up to 4 digital to analog converter (DAC) devices (U11 to U14),
depending on module version. Each DAC provides 4 analog output channels that can be programmed to act as
current sources, current sinks or low power voltage sources. These are controlled by the PCI interface (U30) and
control logic via logic isolation devices (U7 to U10).
Each channel of the module can operate as a current loop transmitter, by sourcing current, or as a current loop
receiver by sinking current. In the sourcing current scenario, the 0-24mA and 4-20mA modes are recommended as
they deliver the best resolution, with the 0-24mA mode also delivering error and/or signalling ranges between 0-4mA
and 20-24mA. In the sinking current scenario, the ±24mA mode in the negative range, can be utilised. The module
can also deliver uni- and bi-polar low current voltage modes with precise resolution control.
For fault simulation purposes, the analog channels are routed to the front panel connector via isolation relays
(RLI_11 to RLI_44) and short relays (RLS_11 to RLS_44). When the short relay is energised for a particular channel,
the status of the corresponding isolation relay is irrelevant. To see how the relays are utilised for each channel,
please refer to the Functional Diagram or Figures 4.1 to 4.4.
Each DAC is powered via its own power management circuit, this includes relays (RL_DAC1 to RL_DAC4) for the
selection of the internal power supply or external power from the front panel connector. The internal power supply
is derived from the PXI bus and is xed at +12V. External power for each DAC is supplied via regulators (U151
to U154). The external supply can vary between +16.5V and +60V (regulated by the module to +15V). By default
the internal supply is selected and is used during the module power up sequence. When the internal supply is
selected, all the grounds are tied, including all channel grounds, to the controller and PXI chassis ground. When the
external power supplies are selected, each DAC works in full isolation mode. This means all channels of a specic
DAC have a common ground, isolated from the PXI chassis, controller ground and other DACs, which needs to be
provided by the external PSU. This feature can be used to break potential ground loops when delivering power from
the transmitter/receiver site. Each DAC can be used independently in this respect. Please see the 2- and 3-wire
connection examples in Section 1 of this manual, also refer to the “Connectivity Notes” section.
Output isolation, output shorting and power selection relays are controlled by relay drivers (U6, U22 and U23).
In many simulation cases it may be desirable to change the speed of the level-to-level signal transition. Therefore,
each channel has a programmable slew rate - this feature is disabled by default. The slew rate can be programmed
in two ways: by modifying the clock rate and/or the step size. The range of the clock rate is between 3.3Hz and
258.065Hz. Each step size is a multiple of 2 with 8 settings ranging from 1 to 128. Please see Figure 4.6 for the slew
rate programming concept. The time required for the output to slew over a given range may vary mode to mode and
the step size will be a different value in mA or V. When the slew rate control feature is enabled, the output changes
occur at the programmed slew rate. This conguration results in a staircase waveform at the output. If a hardware
clear is invoked, the output slews to the zero value at the programmed slew rate. When new data is written to the
DAC, the output starts slewing to the new value at the slew rate determined by the current settings.
The module consists of a safety hardware interlock feature which disables all the outputs if the front panel connector
is not correctly wired, or will immediately disable all the outputs it the front panel connector is removed whilst the
module is operating. Please see Section 5 – “Connector Information” for more details.

Page 2.2
SECTION 2 - TECHNICAL DESCRIPTION pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Figure 2.1 - Functional Block Diagram:
Analog Output/Current Loop Simulator Module 41/43-765
PCI
Interface
(U30)
& Control
Logic
+5V
Compact PCI Bus Connector (J1)
PXI/PXIe Analog Output Module 41/43-765
Front Panel Connector (J2)
78-pin Male D-Type
+3.3V
GND
Isolators
(U7-10)
Isolation
& Short
Relays
(RLI_11
& RLS_11
to
RLI_44
& RLS_44)
Digital/Analog Converter 1 (U11)
Digital/Analog Converter 2 (U12)
Digital/Analog Converter 3 (U13)
Digital/Analog Converter 4 (U14)
Relay Drivers (U6, 22, 23)
Power Management &
Switching (RL_DAC1-2)
1 2
3 4
1
2
3
4
+12V
Power Supplies (U151-154)
External Power
Out 1-4
Out 5-8
Out 9-12
Out 13-16
Hardware
Interlock
Interlock

SECTION 2 - TECHNICAL DESCRIPTION
Page 2.3
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Connectivity Notes
The 41/43-765 module doesn’t generally need an external PSU. The external PSU is only needed in cases where
there are ground loops between the simulator module and DUT - this is a rare occurrence in majority of compact
test systems, however, it can be a problem in systems spanning large distances. When an external PSU is required,
it should be connected per bank of channels (one DAC), then the entire bank (4 channels) is isolated from the test
system and can be powered from the same power points as the DUT, effectively bringing the DAC with its 4 channels
“close” to the DUT (breaking the ground loop).
When an external PSU is required, a single, sufciently specied supply can be used for all four DACs and
appropriate interconnecting wiring created (see “Connector Information” section). Bear in mind that, none of the
isolated grounds of the DACs should be connect to the FP_GND or GND during normal operation.
When using an external PSU for a particular bank, it must be connected between the respective FP_Vccx pin and
associated GNDx pin. Then the internal power selection relay needs to be enabled via software or using the SFP to
connect the external supply to the required bank of 4 channels.
Current
/Voltage
Conditioner
(DAC Out)
41/43-765 Module Transmitter/Receiver
Out
Gnd
In
Gnd
Current Sinking/Sourcing
Isolation
External
Power
Supply
V+
V+
Gnd
If the transmitter/receiver
has its own power, the external
PSU should be connected to
the same power point as the
transmitter/receiver power
DUT
DUT
Power
Supply
+
-
Figure 2.2 - Analog Output/Current Loop Simulator Module with 3-Wire Connection
During the power up sequence of the test system, all the module’s channels are always powered from the internal
chassis source.
The external PSU mustn’t be confused with a power source in a typical current loop. In normal use of the 41/43-765,
current loops don’t need the explicit “in-line” power source. The simulator is actively sourcing or sinking current.
This means you need to connect the transmitter/receiver directly between a channel output pin and a ground pin
designated for the corresponding bank of channels. Example: Out1 – Gnd1, Out2 – Gnd1, … , Out5 – Gnd2, Out6
– Gnd2, and so on.
Figure 2.3 - Analog Output/Current Loop Simulator Module
- Typical Connection of a DUT
PXI
Power
Current
/Voltage
Conditioner
(DAC Out)
Internal
Power
Supply
41/43-765 Module Transmitter/Receiver
Out x
Gnd y
In
Gnd
Current Sinking/Sourcing
DUT
If an external power source is inserted into the loop, it will “ght” the source/sink function of the channel, obeying
Kirchhoff’s laws, potentially damaging the DAC if pushed hard enough. In this scenario, the DAC would work to the
best of it’s capabilities but since it is an advanced device, conscious of power usage, it will only supply as much
voltage as is needed to fulll the required compliance voltage. It will eventually succumb to the external, in-line
source, which is usually xed.
The FP_GND pin shouldn’t normally be used (as a power return for anything), it is provided as a chassis ground in
accordance with the PXI standard. The GND pin (GND signal without a sufx number - pin 76) also mustn’t be used
as it serves only for certain congurations of the interlock system.

Page 2.4
SECTION 2 - TECHNICAL DESCRIPTION pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
THIS PAGE INTENTIONALLY BLANK

SECTION 3 - INSTALLATION
Page 3.1
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
SECTION 3 - INSTALLATION
Page 3.1
REED RELAY MODULE 40-110/115/120/125
pickeringSECTION 3 - INSTALLATION
kg
PREOPERATION CHECKS (UNPACKING)
1. Check the module for transport damage and report any damage immediately to Pickering Interfaces.
Do not attempt to install the product if any damage is evident.
2. Position the chassis relative to any other equipment the module(s) will connect with. Ensure the chassis is not
connected to the electrical supply.
3.
withstand and support the combined weight of the module(s) and chassis.
SECTION 3 - INSTALLATION
!
Refer to the Warnings and Cautions at the front of this manual
Modular products require installation in a suitable PXI/PXIe/LXI chassis. The module is for indoor use only.
Figure 3.1 - Installing the Module into a PXI/PXIe/cPCI/LXI Chassis
PXI / PXIe / LXI Chassis
Ensure that the designated area for the chassis containing the module is of flat and solid construction to
PXI / PXIe Module

Page 3.2
SECTION 3 - INSTALLATION pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Page 3.2 REED RELAY MODULE 40-110/115/120/125
pickering
SECTION 3 - INSTALLATION
SOFTWARE INSTALLATION
First install the appropriate Pickering PXI switch card drivers by running the installer program Setup.exe (provided
in a compressed zip le), either from the CD-ROM supplied, or by downloading the latest version from our website
pickeringtest.com - the recommended method. Setup is accompanied by a ReadMe le containing
additional installation information. A single installation covers all cards in the System 40, System 45 and System
50 ranges.
When installation completes, the installed drivers’ ReadMe le is offered for display. It can also be displayed
later using a shortcut on the Programs>>Pickering menu.
If you are not a LabVIEW user you should choose the “full” version, and once that has been installed run
the LabVIEW Runtime Engine installer via the shortcut on the Programs>>Pickering menu. In the absence of
LabVIEW the Runtime Engine is required to support the Pickering Test Panels application.
!
HARDWARE INSTALLATION
ELECTRICAL CONNECTION (CHASSIS)
1. The chassis must be electrically installed in accordance with local regional electrical codes by a qualied
engineer.
2. The chassis must be grounded.
Electrostatic discharge can damage the components on the module. To avoid such damage in handling the
board refer to page VII.
Ensure that there is adequate ventilation.
The module should be installed in accordance with the following procedure:
1. Ensure that the system is turned OFF but still connected to mains so that it remains grounded.
2. Choose an appropriate slot in the rack.
3. Remove the blanking plate for the chosen slot.
4. Ensure that the injector/ejector handle is in its downward position. Align the module with the card guides on
the top and bottom of the slot.
Do not raise the injector/ejector handle whilst inserting the module as the module will not insert properly.
5. Hold the handle whilst slowly sliding the module into the card guides until the handle catches on the injector/
ejector rail (refer to Figure 3.1).
6. Raise the injector/ejector handle until the module rmly seats into the backplane. The front panel of the
module should be ush with the front panel of the chassis.
7. Secure the front panel of the module using both screws to the chassis front panel mounting rails.
8. In a system employing a remote control interface to connect an external controller to a PXI chassis or to link
multiple chassis, power-up the system as follows:
a. For a system comprising an external controller and one chassis, power up the chassis before powering up
the external controller.
b. For a system comprising more than one chassis, turn ON the last chassis in the system followed by the
penultimate, etc, and nally turn ON the external controller or chassis containing the system controller.
9. For Pickering Interfaces modular LXI installation there is no requirement to use any particular power up
sequence.

SECTION 3 - INSTALLATION
Page 3.3
pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
Page 3.3
REED RELAY MODULE 40-110/115/120/125
pickering SECTION 3 - INSTALLATION
Figure 3.3 - General Soft Front Panel Selector
TESTING OPERATION
After installation of the hardware and Pickering PXI Driver software package start the General Soft Front
Panel (GSFP) using the desktop icon or via the Start menu (Start Menu-> Pickering Interfaces Ltd ->
General Soft Front Panel).
A selector panel will appear, listing all installed Pickering PCI, PXI or LXI switch cards and resistor cards. Click
on the card you wish to control, and a graphical control panel is presented allowing operation of the card.
Panels can be opened simultaneously for all the installed cards.
More details how to use the GSFP can be found in the manual, via menu Help\Manual
Figure 3.2 - General Soft Front Panel Icon

Page 3.4
SECTION 3 - INSTALLATION pickering
PXI/PXIe Analog Output/Current Loop Simulator 41/43-765
THIS PAGE INTENTIONALLY BLANK