^RM (RFID Calibration Mode) — ZPL Command Reference

Plain English

Sets the RFID calibration mode — controls how the printer optimises encoding power. Auto mode lets the printer find the best power; manual mode uses a fixed value.

When to use

When auto-calibration isn't reliable — set manual mode and specify exact power levels.

Syntax

^RMa

Parameters

Parameter	Description
`a`	Mode: A (auto), M (manual)

Example

^XA
^RMA
^XZ

Set RFID calibration to automatic mode

Try it in the playground View all ZPL commands