The 6ES7194-2MN10-1AA0 is a 10-meter 24VDC M8 power extension cable with straight plug and socket for SIMATIC ET 200AL distributed I/O. It extends the gray power rail from one module's power-out socket to the next module's power-in plug — the standard daisy-chain link when clearance above the M8 ports is open and unobstructed.

Straight vs. angled on a power extension — what tips the decision?

Straight connectors project perpendicular to the module face — about 30-40mm of protrusion. If the ET 200AL station sits on a DIN rail with 60mm or more clearance to the next row of trunking or the module above, the straight plug fits without interference and is easier to grip during commissioning. If clearance drops below 30mm, the straight plug body fouls on the obstruction — switch to the angled variant (6ES7194-2MN10-1AB0) which exits parallel to the housing.

How does the gray power cable differ from the green bus cable?

Gray = 24VDC power. The 4×0.50mm² conductors with PP core insulation carry supply current — they are unshielded because DC power does not need EMI protection. Green = PROFINET bus. The 2×2×0.5/1.0mm twisted pairs are double-shielded (foil + braid) because data frames do. The color code prevents a wiring error that would send 24V into a PROFINET PHY — always match jacket color to the port color on the ET 200AL module.

Frequently Asked Questions

How many modules can I daisy-chain on one power run?

The number of modules on a single M8 power chain depends on the combined current draw of all modules and connected sensors/actuators. Each ET 200AL module passes power through to the next via the M8 socket. Calculate the total load and verify it does not exceed the M8 connector and 0.50mm² conductor ratings. For longer chains with higher loads, add intermediate power injection from the 24VDC supply to restore voltage at the far end of the chain.

Can this cable be used in a cable carrier?

Yes. The PUR jacket is rated for 2,000,000 flex cycles at a 51mm continuous bend radius and 5m/s travel speed. The single-bend minimum is 26mm — do not kink the cable tighter than this during installation.