The 6ES7194-2MN10-0AA0 is a 10-meter shielded PROFINET bus cable with straight M8 plugs at both ends — the standard daisy-chain link for SIMATIC ET 200AL distributed I/O when clearance above the bus ports is unobstructed. Straight connectors keep the cable path simple and the installation fast.

When is straight-to-straight the right call?

Straight M8 plugs exit perpendicular to the module face and enter trunking directly. They are the default choice for most ET 200AL installations — simpler to grip than angled plugs during commissioning, less lateral strain on the port threads, and visually cleaner in the duct. Switch to angled (6ES7194-2MN10-0AB0) only when the perpendicular exit is blocked — an adjacent module less than 30mm away, a wiring duct directly above the port, or a cabinet door that closes within the plug's projection envelope.

How far can I run PROFINET on this cable?

PROFINET over copper has a 100-meter segment limit. At 10 meters this cable uses only 10% of that budget — leaving generous headroom for the rest of the channel. The practical concern is not distance but EMI hygiene along the route: keep the cable at least 200mm from VFD motor leads, maintain the 100mm continuous bend radius to preserve shield geometry, and avoid coiling excess length (a coil is an antenna). If the 10-meter length is more than the physical point-to-point distance, dress the excess in a figure-eight pattern rather than a circular loop.

Frequently Asked Questions

What is the difference between 6ES7194-2MN10-0AA0 and -0AB0?

The -0AA0 has straight (180°) M8 plugs at both ends. The -0AB0 has angled (90°) M8 plugs at both ends. Both are 10m, green, shielded PROFINET bus cables. Identical electrically — the difference is mechanical fit around the M8 port.

Is this cable suitable for PROFIsafe or PROFINET IRT?

The cable meets the PROFINET copper cabling specification for standard RT communication on ET 200AL. PROFIsafe (functional safety) runs as a protocol layer on top of standard PROFINET and does not impose additional cable requirements. For IRT (isochronous real-time) applications, the entire channel — controller, switch, device interface module, and cable — must be verified for IRT compliance. Confirm the specific ET 200AL interface module's IRT rating before relying on this cable in an IRT channel.