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GCube4.0 User Manual V1.0

GCube4.0 (GPIB Logging IoT New Controller Design)

1.0 Product Overview

1. The GCube4.0 is able to process the data which is “sniff” out from the GPIB bus. The unit

must connect to GPIB bus through its GPIB connector.

2. When a data or command byte is transmitted on the GPIB bus, the Data Acquisition Unit

(DAU) is triggered to capture the data of the GPIB bus.

3. The captured data will be processed by Data Processing Unit(DPU) into human readable

JSON message and send it over the cloud thru WiFi or LAN network.

4. The JSON message can be select by user to be store locally or send it over the cloud.

2.0 Specification

Input power 12V 2A

Processor Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz

Memory 2GB LPDDR4

Connectivity

2.4 GHz and 5.0 GHz IEEE 802.11b/g/n/ac wireless LAN

1 x Gigabit Ethernet

2 × USB 3.0 ports

2 × USB 2.0 ports

1 x GPIB Female connector

Video 2 × micro HDMI ports

LED Indicator Power, Status, DAU power, Buffer Overflow

Switches Power, Battery

Display 0.91” 128x32 OLED

SD card support Micro SD card(Class 10) for loading operating system and data storage

Operating System Raspbian GNU/Linux 10 (buster),

Released date March 4

2021

Kernel version 5.10.17

Summary of content (8 pages)

PAGE 1
GCube4.0 User Manual V1.0 GCube4.0 (GPIB Logging IoT New Controller Design) 1.0 Product Overview 1. The GCube4.0 is able to process the data which is “sniff” out from the GPIB bus. The unit must connect to GPIB bus through its GPIB connector. 2. When a data or command byte is transmitted on the GPIB bus, the Data Acquisition Unit (DAU) is triggered to capture the data of the GPIB bus. 3.
PAGE 2
GCube4.0 User Manual V1.0 Figure 1: GCube4.0 front view Figure 2: GCube4.0 back view 3.0 LED Indicator Power Label POWER Color Green Description The LED turns ON when the unit receives power 12V 2A and OS successfully boot up. Status STATUS Green Orange DAU Power PWR Red Green Overflow OVF Amber The LED turns ON when unit started to acquiring data. The LED turns ON when unit is starting up the acquisition program The LED turns ON when unit is encounter error.
PAGE 3
GCube4.0 User Manual V1.0 4.0 GCube4.0 in Operation Figure 3: A typical use case of GCube4.0 1. The DAU captures data from the GPIB bus, timestamps them and transfer them to the DPU to process the raw data. 2. The process data can be stored locally or send over to cloud. 3. The sample output of the JSON message is as below: {"Type":"TYPE_DPU","Host":"GCube4.0","ID":"Keysight-MY-01","Timestamp":"2021-04-27T 08:34:53 +08:00","User":"PETER","Email":"Peter@123456.
PAGE 4
GCube4.0 User Manual V1.0 Turn on the GCube4.0 by sliding the POWER to ON and BATTERY to ON position as Figure . Figure 5: GCube4.0 Power LED 2. Wait for 17 seconds for OS to boot up. 3. Once OS is complete boot up, the STATUS orange LED will light up and display will show “Device Starting..” as shown in Figure 6. Figure 6: GCube4.0 Status LED and display status 4. Wait for 14 seconds for the acquisition software loading and initialize. 5.
PAGE 5
GCube4.0 User Manual V1.0 6.0 GCube4.0 Configuration 1. In order to change GCube4.0 configuration, user either can remotely login using SSH or connect GCube4.0 to monitor and keyboard. 2. After login, type “nano gpibsnif.ini” in the terminal. The .ini file will be open up as below Figure 8: gpibsnif.ini setting page Section [system] Parameter IP address Value 192.xxx.xxx.xxx Description IP address of the server. Local IP address ID Port Start 127.0.0.1 local IP address. Default is 127.0.0.
PAGE 6
GCube4.0 User Manual V1.0 Events Save to local Summary table 1 0 1 0 1 PIC Email [connection] WiFi 0 String String 1 [ping] 0 1 [user] Interval 0 Enable to sniff the GPIB control line Interface Events or Interface Message. Default is 0. Does not enable the Interface Events Save the JSON message to local drive/SD Card Does not save the JSON message to local drive Only processed the last trigger GPIB data and store it in a table.
PAGE 7
GCube4.0 User Manual V1.0 4. Save the files and type “sudo reboot” to reboot the GCube4.0 for the setting to take effect. 7.0 Error Messages & Troubleshooting Guide Error shown on display Description & Troubleshooting DAU can’t start The DPU unable to detect the DAU unit.  Check the USB cable between the DPU and DAU is it unplugged?  Check the DAU LED is it light up?  Reboot the GCube4.0 by switching the power switch to OFF and wait for 15seconds for the unit to gracefully shutdown.
PAGE 8
GCube4.0 User Manual V1.0 8.0 Revision History Rev. 1.0 Author S.K.Chan Change Details First release Date of Release 21-March-2022 Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This device complies with part 15 of the FCC Rules.