The 6ES7194-2LN15-0AB0 is a 15-meter shielded PROFINET bus daisy-chain with angled M8 plugs at both ends. It solves one specific problem: connecting two ET 200AL bus ports when straight connectors would collide with the enclosure lid, a wireway, or the module mounted in the next row up.

Why angled plugs on a bus daisy-chain cable?

A straight M8 plug extends roughly 25 mm from the module port face before the cable begins to bend. Add the minimum bend radius and the total vertical clearance needed above the port is about 30 mm. In a shallow junction box, under a low wireway, or in a densely packed cabinet, those 30 mm may not exist. The angled plug exits at 90°—the cable runs flat along the module face, adding less than 12 mm of height above the port. Over a 15-meter run that may span multiple enclosures, the clearance savings at each connection point can be the difference between a clean installation and a mechanical interference that only surfaces when the door will not close.

Plug-to-plug vs plug-to-socket—what does the connector gender mean for installation?

Both connectors on this cable are male (plugs). This means it is designed for direct module-to-module bus daisy-chaining: each plug inserts into a female M8 bus socket on an ET 200AL interface module or I/O module. The bus signal flows from the first module through the cable to the second, and so on. This is the standard ET 200AL bus topology—a linear chain with two ends. A plug-to-socket cable (for power) extends a chain; a plug-to-plug cable (for bus) builds one.

15 meters of PVC bus cable—what are the environmental limits?

The cable is rated IP65/IP67, -30°C to +80°C operating, and the dual-shield construction is identical to the PUR variant. The PVC jacket is the differentiator: it is not halogen-free, has lower oil and chemical resistance than PUR, and degrades under UV. For indoor inter-cabinet runs—by far the most common application for a 15-meter bus daisy-chain—these limits are rarely reached. If the route passes through a washdown zone, chemical processing area, or outdoor sun exposure, step up to the 2MN (PUR) equivalent.

Frequently Asked Questions

What is the difference between 0AB0 and 0AA0?

Identical length (15 m), identical jacket (green PVC), identical dual-shield construction, identical IP65/IP67 rating. The only difference is connector angle: 0AB0 has 90° angled M8 plugs at both ends; 0AA0 has straight plugs. Choose 0AB0 when vertical clearance above the bus ports is tight; choose 0AA0 when the enclosure is deep enough for a straight exit and simpler cable routing.

Can I mix angled and straight bus cables in the same PROFINET segment?

Yes. The M8 connectors are electrically identical regardless of exit angle. A segment might start with an angled cable at a module under a wireway, continue with straight cables in the open area of the cabinet, and end with another angled cable at a tightly packed I/O block. No adapters, no signal degradation from the angle.

Is the shield maintained through the angled connector bodies?

Yes. Both angled M8 plugs carry the shield connection through their metal bodies to the module's grounded M8 socket. The dual-shield (foil + braid) of the cable is bonded to the connector shell at both ends, maintaining a continuous low-impedance shield path across the full 15-meter segment.