M12 P-Coded EtherCAT Cable, Power and Data in One Cordset

Overview

An M12 P-coded EtherCAT cable carries data and 24 V supply in one connector, which is the whole reason the coding exists. A distributed I/O block, a compact servo drive or a remote valve terminal normally needs two connections – one for the network and one for power. Running both through a single P-coded shell halves the port count on the device, halves the number of sealing points that can leak, and cuts wiring time on a machine build. We build it to the contact assignment on your device drawing.

Key Specifications

P-code versus the two codings it replaces

The decision is rarely “P or nothing” – it is “P, or a D-coded data cable plus a separate power feed”. The table below is how we frame it with customers.

P exists to carry power and data in one shell, which is why it is keyed separately from both. If you are still weighing the options, the coding reference in the download center sets the whole family out in two pages.

P-coded contact reference

The assignment below is the arrangement we build to on a five-position P-coded shell. P-code contact assignment is fixed by the device maker’s implementation rather than by a single universal chart, so treat this as the template and confirm it against the port datasheet – we terminate to the pinout you send, not to a guess.

The design point that matters most is separation: the supply contacts are grouped away from the data pairs so switching noise from the load does not couple into the signal. That separation, plus continuous shielding, is what makes a single-cable installation stable.

How P-code sits in the M12 coding family

P-code is one of the power codings defined with the group, but unlike K, L, M, S and T it also carries data pairs. The full map below shows what every code is for and how many positions it normally uses.

A, B, C and D are defined in IEC 61076-2-101, X in IEC 61076-2-109 and the power codings, including P, in IEC 61076-2-111. Y is a de-facto hybrid arrangement rather than an IEC-defined code. These are industry-standard descriptions of purpose; the data rate, current and voltage figures your assembly is built and verified to are the ones stated on your drawing.

Shielding is not optional here

Because power and data share a body, screen continuity is the thing that decides whether the link is stable. We bond the braid to the coupling nut at both ends so the shield path runs through the connector instead of being interrupted by it, and we keep the drain wire termination short. On a drive-heavy machine this is the difference between a link that runs for years and one that throws intermittent errors that never repeat on the bench.

The EtherCAT physical layer runs over standard Ethernet pairs, which is why the cable construction is ordinary and the assembly quality is not. Pairs are kept twisted to the contact, the braid is landed on the metal shell at both ends, and the drain is terminated short.

Build options

• P-code straight or right-angle on one or both ends
• P-code to P-code trunk leads, or P-code to open leads for a cabinet
• PUR jacket for oil and coolant, PVC for dry cabinets
• Braid bonded to the metal coupling nut at both ends
• Made-to-order length, with jacket printing on request

Typical applications for this M12 P-coded EtherCAT cable

• Distributed I/O blocks on conveyor and assembly lines
• Compact servo drives and machine-mounted inverters
• Remote valve terminals where one cable replaces two
• AGV and AMR platforms where every connector saved is weight and a leak path saved
• Retrofits that replace a D-code plus power pair with one cordset – see our M12 D-code PROFINET industrial Ethernet cable for the two-cable approach
• Hybrid alternatives using M12 Y-coded hybrid cable

Before you order

Tell us the total current the device draws, the length of the run, and whether the cable is fixed or moving. Voltage drop over a long thin run is the most common reason a single-cable installation misbehaves, and it is far cheaper to size the conductors correctly up front than to replace a machine full of cordsets later.

Workmanship and testing

ISO 9001 covers the system and IPC/WHMA-A-620 Class 3 covers the work on M12 P-Coded EtherCAT builds, across 32 to 12 AWG. continuity and pinout are tested on each M12 unit before it is packed, and seal checking is quoted whenever an ingress rating is on the drawing.

Material declarations against RoHS and REACH are issued per project, alongside the dimensional and electrical reports agreed at quotation; see certifications, compliance and material declarations. Where your drawing names a UL style or another approval, the build follows your drawing and ships with the supporting document rather than a claim of our own. Where this build needs an overmold, the tool is designed, cut and maintained in our own shop under overmold tooling cut in our own tool room, and it is never used for another customer’s program. Related reading: cable assemblies for industrial automation and robotics.

Custom builds and ordering

M12 P-Coded EtherCAT lots run from 1 to 50 pcs, out in 3 working days; volume starts at MOQ 500 pcs shipping 14 working days after approval. Tooling not already held adds around 10 working days. Your part number and labeling go on M12 shipments, and material certificates and first-article reports can be supplied.

Related single-cable and M12 assemblies

• M12 Y-coded hybrid cable for power and Fast Ethernet
• M12 Hybrid SPE cable for actuators and valve islands
• M12 K-coded power cable for three-phase motor feeds
• M12 L-code 16 A cable for DC power
• M12 X-code Cat6A to RJ45 industrial Ethernet cable
• M12 drag chain cable for continuous flexing
• M20 8-Pin Power Signal Cable, 3+5 Hybrid Industrial Cordset

Full range: Circular M8 and M12 cable assemblies.

Frequently Asked Questions