📋 GPIB Capability Code Decoder
Every GPIB/IEEE 488.1 instrument prints a row of capability codes on a label — usually near the connector — such as SH1 AH1 T6 L4 SR1 RL1 PP0 DC1 DT1 C0 E1. Paste yours below to see what each code means, or browse the full reference on the right.
Accuracy note:Every code below is taken directly from IEEE Std 488.1-2003, Annex C ("Interface function-allowable subsets", Tables C.1–C.15) and cross-checked against instrument-manufacturer documentation (Keysight, National Instruments). The note badge marks C6–C28, which the standard defines as a large combinatorial table of additional controller capabilities not reproduced in full here — see the standard if you ever encounter one, though in practice bench instruments essentially always show C0.
Decode a capability string
What this means in practice