Siemens 6ES7122-1BB10-0AA0 – ET 200L-SC electronic submodule 2 DO 24 V DC / 2 A, pack of 2
Siemens 6ES7122-1BB10-0AA0 – ET200L-SC EL-MOD 2DO DC 24V/2A 2PCS from the ET 200S range. Status: discontinued by the manufacturer, no longer available new since October 2017. Van Haelen supplies it refurbished or new in sealed factory packaging, with a 24-month warranty.
Also written as: 6ES7 122-1BB10-0AA0, 6ES71221BB100AA0
Also known as: ET-200L
The Siemens 6ES7122-1BB10-0AA0 is a set of 2 electronic submodules with 2 digital outputs of 24 V DC at 2 A for SIMATIC ET 200L-SC (Smart Connect). The submodules plug onto the Smart Connect terminal block of an ET 200L station, which extends a station by additional, freely composed channels; the 2 A outputs switch heavier loads such as valves and small contactors directly. Dimensions 6.7 x 5.5 x 2.5 cm. Siemens lists this type as a spare part and discontinued it on 1 October 2017; no successor is specified. The ET 200L-SC sits in older machines where a compact DP station with a mixed channel layout was needed; when replacing, plug the submodule into the same position of the terminal block so the addressing stays unchanged, and leave the wiring on the terminal block in place.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6ES7122-1BB10-0AA0 |
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| Type designation | ET200L-SC EL-MOD 2DO DC 24V/2A 2PCS |
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| Series | ET 200S |
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| Manufacturer status | discontinued by the manufacturer, no longer available new since October 2017 |
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| ETIM | EC001599 |
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| HS code | 85389091 |
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| Country of origin | DE |
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| Weight | 0,038 kg |
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| Dimensions | 6,7 x 5,5 x 2,5 cm |
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Documentation from the manufacturer
All products of the ET 200S series
All PLC I/O modules
Faults and fixes 6ES7122-1BB10-0AA0
Is the 6ES7122-1BB10-0AA0 discontinued or in phase-out?
Siemens has published a product note on this (18-06-2015): "Product discontinuation and end of product life cycle for ET 200B, ET 200L-SC and CP581". Phase-out or discontinued means new units get scarce or stop; we supply the 6ES7122-1BB10-0AA0 refurbished and tested, with a 24-month warranty; the lead time is shown on the article.
Source: Siemens Industry Online Support, 18-06-2015
Problems with 6ES7122-1BB10-0AA0: red SF LED on the module
An SF LED on a signal module means a channel or module diagnostic: missing load voltage (L+ 24 V not connected or a fuse), wire break on inputs with wire-break monitoring, a short circuit on an output, or wrong parameterisation. The CPU's diagnostic buffer names channel and cause. A module that keeps reporting SF after the cause is removed is usually defective itself.
6ES7122-1BB10-0AA0: one channel has stopped working or an output sticks
One dead channel with the rest working normally points to a damaged input or output stage, often from overvoltage, a short circuit or an inductive load without a flyback diode. Swap the wiring to a free channel to separate the module from the installation. If the channel is defective, replace the module; repairing single channels is rarely worthwhile.
What do I check when replacing a 6ES7122-1BB10-0AA0?
The same order number with the same or a higher product version (issue) fits without changing the configuration. Carry over the front connector with its wiring, put the module in the same slot and check the diagnostic buffer after power-up. On modules with parameterisation (analogue: measuring range, range selectors on the side) set the range modules to the same position.
Fault not fixed: replace, exchange or repair the 6ES7122-1BB10-0AA0?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6ES7122-1BB10-0AA0 refurbished (tested, with a test report per serial number) or 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 6ES7122-1BB10-0AA0 still available?
Not new from the manufacturer any more: the 6ES7122-1BB10-0AA0 was discontinued since October 2017. 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.