Zeror.ai Error Codes Siemens 0x4223

Siemens 0x4223

Brand: SiemensModel: PLC (S7-1200 / S7-1500)Error code: 0x4223

What the Fault Means

PROFIBUS DP slave not reachable

Likely causes

  • Slave station powered off or failed; bus termination missing; wrong baud rate

Solution and Safe First Checks

  1. Check slave power and address; verify termination resistors at both ends of bus

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Siemens error codes

Source: the Zeror.ai industrial fault database and Siemens technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.

Siemens 0x4223 · Zeror.ai