OCD-EIC1B-0013-B08S-PRM Profinet MRP and Ø8 Hollow Shaft

For OCD-EIC1B-0013-B08S-PRM, EncoderWorks can provide a custom compatible replacement focused on Profinet MRP continuity, 13-bit position mapping, and ø8 mm blind hollow-shaft fit. This model should not be treated as a simple absolute encoder exchange. The real field risk is that the encoder appears online, while the PLC no longer receives the same Profinet profile behavior, preset value, IP setting, velocity data, or shaft alignment as the original device.

The OCD-EIC1B-0013-B08S-PRM is a POSITAL IXARC singleturn absolute encoder with Profinet interface, RT/IRT support, optical sensing, 13-bit singleturn resolution, binary code, steel housing, ø58 mm blind hollow flange, ø8 mm blind hollow shaft, radial M12 connection, and IP66/IP67 protection. The product data lists Profinet profiles including Profidrive Profile 4.x and Encoder Profile 4.0/4.1/4.2, with 100 Mbit transmission and interface cycle time down to 125 µs.

The first failure boundary is Profinet parameter agreement. This encoder supports programming functions such as resolution, velocity time base and filter, preset, counting direction, IP address, fractional scaling, and parameter control through GSDML or non-volatile memory. If these settings are not copied, communication may be alive while the machine receives the wrong position, velocity, or direction value.

This replacement fails when the device is visible on Profinet, but the axis reports the wrong position because preset, fractional scaling, IP address, counting direction, or profile configuration does not match the original encoder. That is a network-parameter failure, not a sensing failure.

The second boundary is MRP/MRPD and connector mapping. The encoder uses D-coded M12 Ethernet connectors and an A-coded power connector. Tx/Rx pairs, power supply, GND, shield, and ring topology must be checked before startup. A connector can fit mechanically while the Profinet ring, redundancy path, or device name assignment is still wrong.

Mechanically, the ø8 mm blind hollow shaft has 30 mm depth and defined static and dynamic misalignment limits. IP66/IP67 protection does not correct poor shaft seating, excessive radial offset, or cable strain at the radial connector. The blind hollow shaft must sit cleanly before the clamping ring is tightened.

The replacement decision should first confirm Profinet profile compatibility, GSDML project data, IP address or device name strategy, MRP/MRPD topology, M12 Tx/Rx mapping, 10–32 VDC supply, 13-bit resolution, preset value, counting direction, velocity filter, ø8 mm shaft fit, misalignment limits, and shield grounding. EncoderWorks treats OCD-EIC1B-0013-B08S-PRM as an industrial encoder custom compatible solution where Profinet parameter agreement and hollow-shaft mechanics decide field reliability.

Typical production lead time: 15 working days.

Key Data