BLUE COLLARBLACK HATSOCIETY

LOCAL 0x0420

INSTRUMENTATION

Trust the Signal. Corrupt the Loop.

The process does not see reality.

It sees the signal.

FOUNDING LOCAL

CLASSDC34

Local 0x0420 patch: a skull in a hard hat and safety glasses, in a work shirt, holding a HART communicator wired to a field transmitter with test leads. Signal badges for 4-20 mA, 0-10 V, and RS-485 run down the left edge. Ringed by BLUE COLLAR BLACK HAT in bone lettering, and stamped LOCAL 0x0420 on a plate at the upper right.

THE TRADE

Measure the process.

Convert it.

Transmit it.

Scale it.

Display it.

Control from it.

Then ask whether the value was ever true.

SIGNALS

LOOP PIC-1140

PV
46.3 psi11.41 mA
SP
52.0 psi
OP
61.7 %13.87 mA
RANGE
0–100 psi
HART
POLL 03
RS-485
19200 8N1

Field Notes

  1. TRUST THE SIGNAL. CORRUPT THE LOOP.
  2. THE VALUE IS NOT THE PROCESS.
  3. CALIBRATED DOES NOT MEAN TRUSTED.
  4. ZERO IS A VALUE.
  5. LIVE ZERO EXISTS FOR A REASON.
  6. MEASURE. MANIPULATE. MISBEHAVE.

Artifacts

LOG

STATUSNO ARTIFACTS LOGGED

FIELD VERIFY

REQ CLOSED