Description

SCXI-1320 Data acquisition card
SCXI-1320 Data acquisition card
Module Clips Drive controller servo motor
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Throughput difference between slots 7 and 8 of PXIe-1082 chassis

Hardware: PXI/CompactPCI>>Chassis>>PXIe-1082 SCXI-1320 Data acquisition card

Problem: There are two modules in slots 7 and 8 of the PXIe-1082 chassis; However, their throughput seems to be imbalanced with each other. At the same time, Buffer overflow errors will also occur in my program. What can I do to prevent or correct this issue with PXIe-1082, revision B chassis?

Answer:

Question:

Revision B PXIe-1082 chassis will result in a slight throughput imbalance between slots 7 and 8. Although the exact settings can vary, this issue is usually unlikely to be noticed during normal use. However, this imbalance can lead to uneven bandwidth usage between slots 7 and 8. Therefore, this can also lead to Buffer overflow errors (for example, in the application of digitizers and Function generator, etc.).

Unfortunately, this imbalance cannot be accurately characterized. Therefore, to help confirm if there is a problem with this chassis, use the following example:

1. Using two digitizers, the throughput is allocated to slots 7 and 8 in the form of 60/40.

2. Using two two performers, the throughput is allocated in the form of 80/20 to slots 7 and 8.

These examples indicate whether throughput tends towards slot 7.

Solution:

There are several solutions to this problem.

1. Download and run the self extracting executable file to attach to the knowledge base. After extracting the file, refer to the readme file, extract the file, and follow the instructions to update it.

2. Bandwidth throttling attribute node: depending on the hardware and driver used, using the Maximum Bandwidth attribute node in the program can solve this problem. The concept is to limit the throughput of modules in slot 7, which can alleviate the throughput imbalance observed in the above example.

PXI-4461
PXI-5600
PXI-5152
PXI-6071E
PXI-6052E
PXI-6070E

PCI-6052E
PXI-4130
AT-FBUS
PCI-7833R
PXI-6070E
PCI-6289
PXIe-6544
SWB-2816A
PXI-4071
NI-1774
PXIe-5605
SWB-2816B
PXI-8108
PCI-8512
PXI-1045
PXI-8430
PXI-8106
PXI-8331
PXI-8106
PXIe-5605
PXIE-6674
PXI-7831R
PXI-8102
PXI-8109
PXI-5124
PXIe-4141
NI-9036
PXIe-4480
PXIe-5630
PXI-1044
PXI-8106

PXI-5421
PXI-5122
PXI-2593
PXI-2591
PXI-6071E
PXI-4461
PXI-8310
PXI-5153
PXI-5651
PXIe-1085
PXIe-5665
PXI-5142
PXI-5421
PXI-5124
PXI-5441
PXI-8517
sbRIO-9642
PXIe-4480
PXI-1044
PXI-8106
PXI-4110
PXI-6602
PXI-6250
PXIe-5645R

PCI-6120
PXIe-6363
PXI-5153
PCI-4451
sbRIO-9626
PXI-5610
PCI-6031E
cRIO-9081
PXI-5154
NI5791
PXI-1062Q
PXI-6120
PXI-1042Q
PXI-4472
PXIe-4163
PXI-2532B
USB-6356
PXI-7831R
PXI-4472B
PXIe-5646R
PXI-7853R
PXIe-5644R
PXI-1000B
PXIe-7976R
PXIe-5646R
PXIe-8135
NI4472
SCXI-1129
PXI-5154
PXI-6289
PXIe-2569
PXI-1042
PXI-8196
PXI-7350

PXI-6040E
PXIe-5673E
PXI-5600
PXI-7853R
PXIe-5645R
PXIe-4480
PCI-5153
PXIe-6545

PXI-6733
PXI-7831R
PXI-6552
cRIO-9068
PXI-5651
PXI-5651
PXI-6733
PXI-5421
CFP-2020
cfp-Do-401
cfp-cb-1
cfp-ao-210
cfp-ai-100
cRIO-9081
PXI-4495
PXIe-5646R
PXIe-8370
PCIE-8371
cDAQ-9185
PXIe-1491
PCIe-6351
PXI-4472
PXIe-5641R
PXI-7954R
PCI-8517

cRIO-9082
PXIe-5605

PXI-4224
PXIe-6672
PXIe-1075
PXIE-8840

SMA-2164
PXI-2529
NI1744
PXI-7953R
PXI-5671
PXI-5650
PXI-5124
154748A-01

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SCXI-1320 Data acquisition card

Description

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