When replacing ESM58N-F1AIZR0BN-1213, the EncoderWorks custom compatible replacement should first control EtherNet/IP configuration, 13/12-bit position mapping, and Ø10 mm recessed hollow-shaft fit. This model should not be treated like the Ø12 mm recessed-shaft version. The interface may be identical, but the smaller bore makes shaft insertion, torque-rest contact, and offset limits more sensitive during installation.
The ESM58N-F1AIZR0BN-1213 is an EtherNet/IP multiturn absolute encoder configuration with binary code, 13-bit singleturn resolution, 12-bit multiturn range, 10–30 VDC supply, aluminum housing execution, Ø10 mm x 30 mm recessed hollow shaft, radial M12 Ethernet and power connection, and integrated 2-port switch.
The first failure boundary is EtherNet/IP parameter agreement. IP address, subnet, device identity, CIP encoder profile, assembly size, preset value, counting direction, and controller project configuration must match the original encoder. Link and Active LEDs can be normal while the PLC still rejects the position data because the module setup is wrong.


This replacement fails when Ethernet link is present, but the PLC reads no valid position because EtherNet/IP configuration, 13/12-bit resolution mapping, preset value, or counting direction does not match the previous encoder. That is a network-parameter failure, not a sensing failure.
The second boundary is Ø10 mm recessed hollow-shaft installation. This is not a solid shaft and not a standard through-hollow shaft. The machine shaft must enter within the correct insertion range, and the torque rest must prevent housing rotation without forcing radial or angular offset.
The replacement decision should first confirm EtherNet/IP compatibility, CIP encoder profile, IP address handling, M12 D-coded port assignment, M12 A-coded supply, 13-bit singleturn and 12-bit multiturn mapping, binary code, preset value, counting direction, Ø10 mm recessed hollow-shaft fit, 15–30 mm insertion depth, torque rest contact, shield grounding, and offset limits. EncoderWorks treats ESM58N-F1AIZR0BN-1213 as an industrial encoder custom compatible solution where EtherNet/IP setup and Ø10 recessed-shaft mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ESM58N-F1AIZR0BN-1213 |
| Encoder type | Multiturn absolute encoder |
| Interface | EtherNet/IP |
| Profile focus | CIP encoder profile |
| Resolution | 13-bit singleturn + 12-bit multiturn |
| Code | Binary |
| Supply voltage | 10–30 VDC |
| Housing execution | Aluminum, powder coated |
| Shaft type | Recessed hollow shaft |
| Shaft size | Ø10 mm x 30 mm |
| Connection | M12 Ethernet ports + M12 power connector |
| Network feature | Integrated 2-port switch |
| Main engineering anchor | EtherNet/IP setup and Ø10 recessed shaft |
| Main failure boundary | Wrong IP/configuration, scaling mismatch, shaft insertion error, torque-rest fault |

