Siemens 6ES7 318-3EL01-0AB0 – CPU319-3 PN/DP 2 MB
Siemens 6ES7 318-3EL01-0AB0 – CPU319-3 PN/DP 2 MB from the S7-300 range. Status: discontinued by the manufacturer, no longer available new since October 2025. Van Haelen supplies it new in sealed factory packaging, with a 24-month warranty.
Also written as: 6ES7318-3EL01-0AB0, 6ES73183EL010AB0
The Siemens 6ES7 318-3EL01-0AB0 is a S7-300 control component from the Simatic S7 (S7-300) range. Manufacturer type designation: CPU319-3 PN/DP 2 MB. Status: discontinued by the manufacturer, no longer available new since October 2025. Key data: weight 1.392 kg, dimensions 18,2 x 16,4 x 15,9 cm, HS code 85371091. When replacing, check the product version (issue) on the rating plate; for most installations the same or a higher issue is suitable. 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 | 6ES7 318-3EL01-0AB0 |
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| Type designation | CPU319-3 PN/DP 2 MB |
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| Series | S7-300 |
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| Manufacturer status | discontinued by the manufacturer, no longer available new since October 2025 |
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| Predecessor | 6ES7318-3EL00-0AB0 |
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| ETIM | EC000236 |
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| HS code | 85371091 |
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| Country of origin | DE |
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| Weight | 1,392 kg |
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| Dimensions | 18,2 x 16,4 x 15,9 cm |
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Documentation from the manufacturer
All products of the S7-300 series
Faults and fixes 6ES7 318-3EL01-0AB0
Problems with 6ES7 318-3EL01-0AB0: the red SF LED is on, what now?
SF means system fault: a hardware, firmware or program fault. Read the diagnostic buffer first (STEP 7 or TIA Portal: Online & diagnostics). Common causes on the S7-300: a missing or defective module in the rack, a configuration that does not match the hardware, or a diagnostic event whose organisation block (OB82, OB86, OB121, OB122) is not loaded; then the CPU also goes to STOP.
6ES7 318-3EL01-0AB0: BF LED red, bus fault on PROFIBUS or PROFINET
BF (BF1/BF2 on CPUs with two interfaces) indicates a bus fault: a station that does not answer, a wrong address or device name, a broken cable or missing terminating resistors. Check the stations named in the diagnostic buffer and the cabling from the CPU first; only then suspect the CPU itself.
6ES7 318-3EL01-0AB0 stays in STOP or the program is gone after a power loss
On the S7-300 the program lives on the Micro Memory Card (MMC). If the CPU stays in STOP with SF after power-up, or the program is gone: check that the MMC is inserted, makes contact and is readable. A worn or defective MMC is the most common cause; a memory reset (MRES) followed by a fresh download fixes corrupted contents, not a defective card.
6ES7 318-3EL01-0AB0: DC5V LED off, CPU dead
Without the DC5V LED the CPU has no internal supply. First measure the 24 V on L+ and M and check the power supply (PS307: green LED). If the 24 V is fine and DC5V stays off, the CPU hardware is defective and replacement is the only remedy.
What do I check when replacing a 6ES7 318-3EL01-0AB0?
Carry over the MMC with the program or download it again, and check the firmware version and the product version (issue, on the rating plate): the project must expect the same or a lower firmware than the replacement has. Note the PROFIBUS addresses and the PROFINET device name; you set them again on the new CPU. Keep a project backup before you start.
Fault not fixed: replace, exchange or repair the 6ES7 318-3EL01-0AB0?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6ES7 318-3EL01-0AB0 new in factory packaging, 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 6ES7 318-3EL01-0AB0 still available?
Not new from the manufacturer any more: the 6ES7 318-3EL01-0AB0 was discontinued since October 2025. Van Haelen supplies it from stock.
Does the 6ES7 318-3EL01-0AB0 replace the 6ES7318-3EL00-0AB0?
Yes. According to the manufacturer the 6ES7 318-3EL01-0AB0 is the successor of the 6ES7318-3EL00-0AB0. Before replacing, check that the project and the connections match the new version; if in doubt we also supply the 6ES7318-3EL00-0AB0 itself, refurbished or new, as long as it can be found.
What should I check when replacing a 6ES7 318-3EL01-0AB0?
Check the product version (issue) on the rating plate; for most installations the same or a higher issue is suitable.