The 6ES7194-2MH50-1AA0 is a 5-meter M8 power extension cable that converts a module output plug into a socket—extending the 24VDC rail between ET 200AL stations. Straight connectors at both ends keep the cable routing clean in standard-depth enclosures.

When do I need a plug-to-socket extension instead of a plug-to-plug daisy-chain cable?

A plug-to-socket cable extends an existing run. The socket end accepts the plug from the next segment—so you insert this cable mid-run to add 5 meters of reach without replacing the original cable. A plug-to-plug cable starts a new daisy-chain segment between two module ports. Choose plug-to-socket when you are lengthening; choose plug-to-plug when you are linking.

Can this gray power cable carry PROFINET bus signals?

No. The gray PUR jacket identifies this as a 24VDC power cable with 4×0.50mm² unshielded conductors. PROFINET bus cables use a green jacket with shielded 2×2×0.5/1.0mm twisted pairs. Cross-plugging a gray power cable into a green bus port sends 24VDC into the Ethernet PHY—destroying the interface module. Always match jacket color to port function.

Frequently Asked Questions

What is the difference between this 5m extension and the 2m version?

The 2m variant (6ES7194-2MH20-1AA0) covers shorter module-to-module gaps within the same enclosure. The 5m version bridges between distributed enclosures or across wider panels. Electrically identical—choose by distance between the power output and the next load.

Why four poles and not three for DC power?

ET 200AL power uses a 4-pole M8 layout: two conductors for +24VDC and two for 0V—doubling the current-carrying cross-section to 1.0mm² effective. This maintains voltage stability across longer cable runs and supports the full I/O module load without excess voltage drop.

Is this cable compatible with non-ET 200AL modules?

It fits any device with a standard M8 4-pole connector following the ET 200AL power pinout. Verify the mating connector gender and pin assignment before connecting to third-party equipment—M8 pinouts are not universally standardized across manufacturers.