Siemens 6ES7647-5BG00-2CX0
Siemens 6ES7647-5BG00-2CX0 – Industrial PCs from the PC620 range. Status: discontinued by the manufacturer, no longer available new. Van Haelen supplies it refurbished, with a 24-month warranty.
Also written as: 6ES7 647-5BG00-2CX0, 6ES76475BG002CX0
The Siemens 6ES7647-5BG00-2CX0 is a operator panel or industrial PC from the Simatic Box PC (PC620) range. Status: discontinued by the manufacturer, no longer available new. Key data: weight 7.05 kg, dimensions 45,00 x 47,50 x 27,00 cm, HS code 85371099. Back up the project before replacing the panel and check that the software version matches. Ask us about exchange, repair and a spare-parts pool for your installation.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6ES7647-5BG00-2CX0 |
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| Series | PC620 |
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| Manufacturer status | discontinued by the manufacturer, no longer available new |
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| ETIM | EC001413 |
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| HS code | 85371099 |
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| Weight | 7,05 kg |
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| Dimensions | 45,00 x 47,50 x 27,00 cm |
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Documentation from the manufacturer
All products of the PC620 series
All Industrial PCs
Faults and fixes 6ES7647-5BG00-2CX0
6ES7647-5BG00-2CX0 (Box PC 620): the Temp LED or the Watchdog LED is red
The LEDs exist only on specific device models; the basic model has none. Temp red means the inside temperature is outside the permissible range: three sensors measure the processor, the area of the memory module and the expansion cards, and the area of the power supply unit. When a threshold is exceeded the fan goes to maximum speed and the SOM program (Safecard On Motherboard) reports the fault; above 45 °C near the power supply the fan already runs at maximum speed if 'Fan Control' is turned on in the Setup. Siemens names as causes: blocked ventilation slots, a fan that is not working, an ambient temperature above the allowed value (+5 to +45 °C) or an overloaded power supply; the error stays until you acknowledge it in SOM or restart the device. The Watchdog LED is off when the watchdog is not active, green when it is running and red when it has executed: the program did not retrigger it within the set time (3 to 255 seconds); a reset of the PC can be configured for that case. Source: Siemens, SIMATIC Box PC 620 Manual (A5E00131465-03), 7.4.2 to 7.4.5 and appendix B.
6ES7647-5BG00-2CX0 (Box PC 620) beeps at start-up or shows a POST code: what does it mean?
At power-up the self-test (POST) runs. If it detects a fault, a beep code of 2 x 2 sequences sounds; each pair of sequences is one hexadecimal digit (one and one beep is 0, one and two is 1, up to four and four is F), and the same step is output at I/O port 80h. Example from the manual: one beep and three beeps, then three and one, is code 28, 'check system memory'. Codes you often meet in Siemens' list: 28 determine the RAM size, 2C and 2E base RAM tests, 5C system memory test, 60 extended memory, 62 address line A20, 4A initialisation of the video port, 55 USB devices, 52 keyboard. Special codes: 3x short when the Insert key was pressed during system start (onboard device installation skipped), 4x short when the MPI EPROM is programmed for the first time, 1x long and 8x short an error reading the MPI system information and 1x long and 5x short an Ethernet error; for the last two Siemens refers you to customer support. Source: Siemens, SIMATIC Box PC 620 Manual (A5E00131465-03), 6.8.
6ES7647-5BG00-2CX0 (Box PC 620): error message on the screen at start-up, or wrong time and date
The BIOS messages according to Siemens: 'System battery is dead – Replace and run SETUP' means the battery on the CPU module is defective or dead; 'System CMOS checksum bad – Run SETUP': call up Setup (F2 during booting), adjust settings and save, and if the message appears at every power-up the battery or the motherboard is next; 'Failure Fixed Disk' is an error accessing the hard drive, check the Setup settings; 'Operating system not found': no operating system, the wrong drive addressed, an incorrect active boot partition or incorrect BOOT entries in Setup; 'Previous boot incomplete – Default configuration used': the previous boot was aborted, for example by a power failure, and the PC restarts with the default configuration, so check the hardware settings and the Setup; 'System cache error – Cache disabled' is an error in the CPU's cache module. If the clock is wrong: set time and date in Setup; if they are wrong again after switching off and on, the backup battery (3.6 V lithium, Siemens W79084-E1003-B1) is dead; it may only be exchanged by technical personnel. Source: Siemens, SIMATIC Box PC 620 Manual (A5E00131465-03), 2.7, 6.5 and 6.7.
6ES7647-5BG00-2CX0 (Box PC 620) with RAID: disk failed, RAID BIOS message at start-up
The optional RAID version mirrors two EIDE disks (RAID 1) on a Promise FastTrack 100 TX2 controller in slot 2. On the first restart after a disk failure or a new disk, the RAID BIOS reports that the RAID functionality no longer exists and offers options; after confirmation the operating system starts, and a keyboard must be connected for that. To skip this stop, set 'Halt On Error' in the RAID BIOS to 'disable'. The new disk is synchronised in the background, which can take hours; meanwhile the PC may respond slowly to keyboard and touch screen, and only after completion is RAID 1 safe again. A disk failure during operation is only shown in 'Promise Array Management' after a USER logon at every restart, or in SIMATIC PC DiagMonitor (ordered separately, 6ES7648-6CA01-0YX0). Source: Siemens, SIMATIC Box PC 620 Manual (A5E00131465-03), 3.6.
What do I check when replacing a 6ES7647-5BG00-2CX0 (Box PC 620)?
The manual applies to order numbers 6ES7647-5… and describes the state of delivery as of April 2004: Pentium III or Celeron processor, at most 512 MB SDRAM, an EIDE hard disk (UDMA33), one shared ISA/PCI slot and one PCI slot, and a power supply of 85 or 105 W (AC or DC). For a replacement compare the processor, memory, slots and power supply with the order documentation of the old device; a RAID version has the Promise controller in slot 2. The permitted ambient temperature in operation is +5 to +45 °C, burning CDs only between +5 and +40 °C. A hardware reset is done with a thin pen in the reset button on the drive side, next to the floppy drive. The operating system is restored with the Recovery CD of the supplied version (Windows 98, NT, 2000 or XP), the RAID drivers and software from the 'Documentation and Drivers' CD. Source: Siemens, SIMATIC Box PC 620 Manual (A5E00131465-03), 4.11, 8 and appendix B.
Fault not fixed: replace, exchange or repair the 6ES7647-5BG00-2CX0?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6ES7647-5BG00-2CX0 refurbished: tested to this family's test protocol, with a test report per serial number, with a 24-month warranty. The current lead time is shown with the condition on this page. Prefer an exchange: you get a refurbished unit straight away and return the faulty one within 14 days. Repairing your own unit is also possible: diagnosis, then a fixed price.
What information should I send for a quick diagnosis?
A photo of the rating plate (order number, product version, firmware), the exact fault code or LED state, when the fault occurs (at power-up, on enable, under load) and what you have already tried. For PLCs an export of the diagnostic buffer, for drives the parameter set. With that we can usually say the same day whether replacing, exchanging or repairing is best.
Frequently asked questions
Is the 6ES7647-5BG00-2CX0 still available?
Not new from the manufacturer any more: the 6ES7647-5BG00-2CX0 was discontinued. Van Haelen supplies it refurbished and tested.
What does refurbished mean?
Cleaned, inspected, aged or critical components replaced and tested to our test protocol for this product family. You get a 24-month warranty, a test report and a serial number label.
Can I exchange or repair my faulty unit?
Yes. With an exchange Van Haelen supplies a refurbished unit straight away and you return the faulty one. With a repair you first get a diagnosis and then a fixed price, with test report and warranty.