Obvius A89DC-08 - Manual (Page 15)

A89DC-08 Firmware Update
From time to time, Obvius may release firmware updates with additional features and system changes. To find out what
firmware your A89DC-08 has installed, read the firmware version register with a Modbus utility, or use the “Advanced
configuration” page in the AcquiSuite setup menu. Firmware update files may be obtained from Obvius technical support.
The firmware update process requires an RS232 serial port and a windows computer to run the firmware update utility.
Before starting this process, verify your computer has a serial port available. You may need to deactivate other software
such as the palm pilot utility or ups monitor software. USB connected serial ports may be used, however these are not as fast
or reliable as standard computer serial ports and may fail to upgrade the firmware correctly.
To update the firmware, use the following procedure.
Step 1: Install the Philips LPC2000 software as provided by Obvius.
Step 2: Remove power and DC load current from the A89DC-08. Power can be disconnected by removing the screw
terminal plug from the A89DC-08 power connection socket.
WARNING: Disconnect power and lock-out all power sources during installation.
DO NOT CONNECT RS232 PORT WITH CURRENT INPUTS LIVE
Step 3: Attach the A89DC-08 to your computer with an RS232 serial cable. The A89DC-08 programming connector is the
9 pin RS232 connector on the top of the device.
Step 4: Power up the 24vdc supply to the A89DC-08. The Green Alive LED should light up and blink.
Step 5: Run the LPC2000 Flash Utility. The following screen will be displayed.
Step 6: Set the following communications options:
COM1 or COM2 depending on your computer serial port.
Use baud rate: 38400 or slower.
Check “Use DTR/RTS for Reset”
XTAL Freq[kHz] = 14745
Step 7: Click the “Read Device ID” button. The PartID and BootLoaderID fields will be shown if successful. Also, the
“Device” dropdown menu should switch to LPC2131. The bottom of the window will display “Read Part ID Successfully.”
Step 8: Click the “Filename” “...” button. A dialog box will appear. Locate and select the A89DC-08 firmware image file.
In the example above, this is named “A89DC-08_v1.13.hex”.
Step 9: Click the “Erase” button. This will remove the existing firmware from the A89DC-08 device.
Step 10: Click the “Upload to Flash” button. The firmware update will start, and a blue progress bar will be shown across
the bottom of the screen. While the upload is in progress, the green Alive LED on the A89DC-08 will stop blinking and
stay on solid.
Step 11: when the update is complete, disconnect power from the A89DC-08. Remove the RS232 serial cable.
Step 12: Re-attach the data and load wire connections. Power up the A89DC-08. The new firmware should now operate.
To confirm the new firmware is installed, use the AcquiSuite device details page, click the “configure” button, and then the
“Advanced” button. The firmware version number will be displayed on the lower right side of the advanced details page.
Page 15 A89DC-08 – DC Current Monitor