The 6ES7194-2MH10-0AB0 is a 1-meter PROFINET bus cable for ET 200AL, with angled M8 plugs at both ends and a green PUR jacket. It daisy-chains bus communication between adjacent modules—both ends plug directly into module M8 bus ports.

Why angle both ends on a bus cable?

Angled M8 connectors reduce the cable's projection from the module face by roughly 13–18mm per connector compared to straight plugs. In a machine-mounted ET 200AL installation where the bus cable routes along the mounting plate, angled connectors keep the cable flat to the surface—avoiding snag points and reducing the risk of impact damage from moving machine elements. If the enclosure depth is generous and overhead clearance isn't a concern, the straight version (6ES7194-2MH10-0AA0) is faster to handle.

What is inside the green jacket?

Unlike the gray power cables, bus cables carry PROFINET data and are built with signal integrity in mind. The construction uses 2×2×0.5/1.0mm twisted pairs with PE core insulation, wrapped in overlapped aluminum-clad foil plus a tinned-copper braid for dual-layer shielding. This rejects EMI from adjacent motor drives and contactor coils that could corrupt bus communication. The outer jacket is green—the ET 200AL color code for bus data. Cross-plugging gray power into a green bus port sends 24VDC into an Ethernet PHY and destroys it. Verify port color before connecting.

Frequently Asked Questions

How many modules can I daisy-chain with these cables?

The ET 200AL system supports daisy-chain bus topologies with multiple nodes. The 1-meter length covers typical module-to-module spacing within a single enclosure. For spanning between separate enclosures or machine sections, Siemens offers 2m, 5m, 10m, and 15m variants.

Does this cable carry power as well as data?

No. In the ET 200AL system, power (24VDC) and bus (PROFINET) use separate cables with different internal construction. The green bus cable carries only PROFINET data. Power must be routed separately using gray-jacket cables (e.g., 6ES7194-2MH10-1AA0 or 1AB0).