The 6ES7194-2MN15-0AB0 is a 15-meter shielded PROFINET bus cable with angled M8 plugs at both ends, purpose-built for SIMATIC ET 200AL distributed I/O stations. The green PUR jacket identifies it as a data cable — plug it into the bus port, not the power port.

When do angled M8 connectors make the right call?

Angled (90°) connectors exit the cable parallel to the module face instead of perpendicular. On ET 200AL blocks where I/O ports sit side by side with minimal clearance, a straight plug can foul on the adjacent connector or block the module above. The angled exit keeps the cable flat against the housing, preserving access to neighboring ports and reducing the risk of snagging during maintenance. Choose angled-to-angled when both ends face tight clearances — a crowded fieldbus daisy-chain with modules stacked close together.

What makes the green jacket a bus cable and not a power cable?

Green = PROFINET data. Inside the 5mm PUR jacket is a shielded twisted-pair construction: 2×2×0.5/1.0mm conductors with PE core insulation, wrapped in overlapped aluminum-clad foil plus a tinned-copper wire braid. The dual-layer shield rejects the electromagnetic noise that lives inside every industrial cabinet — VFD switching harmonics, motor inrush transients, and contactor arcing. Without it, PROFINET frames collide with noise and the controller sees dropped packets. The gray-jacket ET 200AL cables carry 24VDC power instead — unshielded 4×0.50mm² with PP insulation. Plug a gray cable into a bus port and you lose the shield; plug a green cable into a power port and you are sending 24V into a PROFINET PHY. The color code is not decoration — it is the first and last defense against a misconnection that takes down the whole rack.

How does the 15-meter length change the installation?

At 15 meters this is the longest standard M8 bus cable in the ET 200AL lineup. It bridges cabinets that sit on opposite sides of a machine cell without a field-mounted switch in between. The tradeoff: longer cable = more exposure to EMI along the run. The foil-plus-braid shield handles this, but route it away from VFD motor cables and keep the bend radius above 100mm in continuous flex — otherwise the shield crimps and loses coverage at the crease.

Frequently Asked Questions

Can I use this cable with non-Siemens M8 ports?

The M8 connector follows IEC 61076-2-104, so it mates mechanically with any compliant M8 socket. However, the pinout must match the ET 200AL bus port assignment. Check the third-party device pinout against the Siemens ET 200AL bus interface specification before connecting.

What is the difference between 6ES7194-2MN15-0AB0 and -0AA0?

The -0AB0 has angled (90°) connectors at both ends. The -0AA0 has straight (180°) connectors at both ends. Both are 15m, green, shielded PROFINET bus cables. Choose based on clearance around the M8 ports at your ET 200AL station — if straight plugs project into walkway or interfere with adjacent wiring duct, the angled variant solves it.

Does this cable support PROFINET IRT?

PROFINET IRT (Isochronous Real Time) requires the entire channel — controller, switch, device, and cable — to meet IRT timing specifications. This cable is specified for standard PROFINET RT communication on ET 200AL. For IRT applications, confirm the full channel compliance including the specific ET 200AL interface module IRT rating.