The 6ES7194-2LN15-0AA0 is the standard long-reach PROFINET bus cable for ET 200AL—15 meters of green PVC-jacketed, dual-shielded cable with straight M8 plugs factory-assembled at both ends. It is the cable you reach for when two ET 200AL I/O blocks sit in different enclosures and need a single factory-tested bus segment between them.

What role does the 15-meter length play in an ET 200AL bus topology?

ET 200AL bus segments are linear: the PROFINET signal enters the first module, daisy-chains through each subsequent module via short plug-to-plug jumpers, and exits at the last module to continue to the next block or return to the controller. The 15-meter cable connects the last module of one block to the first module of the next—spanning the gap between cabinets, across a room, or from a machine frame to a remote operator station. With both plugs pre-assembled and tested, the installer is not terminating PROFINET in the field—just plugging in two connectors.

Straight vs angled—what guides the choice for bus daisy-chains?

Straight plugs are the default. They exit inline with the cable, are easier to grip during insertion and removal, and cost slightly less than angled equivalents. Choose straight (0AA0) when the enclosure provides at least 30 mm of clearance above the M8 bus port—enough for the plug body and the cable's natural bend radius. Choose angled (0AB0) when a wireway, lid, or adjacent component eats into that clearance. Both carry the same PROFINET signal with the same shield integrity.

Why PVC for a 15-meter bus segment?

Cost per meter is the primary driver. At 15 meters, the PVC vs PUR price difference is a line item on the bill of materials, not a rounding error. In the typical deployment scenario—an indoor cable tray or wireway between two control cabinets in an air-conditioned electrical room—PVC performs identically to PUR in electrical terms and faces none of the chemical, oil, or UV challenges that would justify PUR. The dual-shield construction, bend radius, temperature range, and flex-cycle rating are identical between PVC and PUR bus cables—only the jacket chemistry changes.

Frequently Asked Questions

What is the difference between this cable and the 0AB0 variant?

Identical in every respect except connector angle. The 0AA0 has straight (180°) M8 plugs; the 0AB0 has angled (90°) plugs. Choose 0AA0 when enclosure depth allows a straight cable exit; choose 0AB0 when the connector must exit flat against the module face to clear a shallow lid or overhead obstruction.

How many 15-meter bus segments can I use in one PROFINET line?

PROFINET over copper has a 100-meter limit between active devices (controller to first module, or between switches). A 15-meter segment consumes 15 of those 100 meters. Multiple 15-meter segments can be used in the same line as long as the total copper distance between powered PROFINET interfaces stays under 100 m. For longer distances, insert a PROFINET switch or use fiber optic conversion.

Can this cable be used as a power cable in an emergency?

No. Green jacket = shielded PROFINET bus. Using it for 24 V DC power defeats the ET 200AL color-coding safety system and risks sending 24 V into a PROFINET port on reconnection. Always match jacket color to port function: green to green (bus), gray to gray (power).