Chapter 2. CPU Features & Specifications
40 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
Status Indicator LEDs
CPU is updating an internal programmable hardware device.
TPM Physical Presence (not functional).
Activity detected on Solid State Disk.
No activity detected on Solid State Disk.
Controlled shutdown due to CPU Overtemperature condition.
Overtemperature condition not detected.
CPU has passed its power-up diagnostics and is functioning properly. (Following
initialization sequence.)
Power is not applied or CPU has a problem.
Blinking;
All other LEDs off
PLC in STOP/Halt state; possible watchdog timer fault. If the programmer cannot
connect, cycle power with charged Energy Pack attached and refer to fault tables.
CPU encountered a Secure Boot Error.
One or more Overrides active in I/O Reference Tables.
No Overrides active in any I/O Reference Table.
PLC is in STOP/Faulted mode: a fatal fault has occurred.
No fatal faults detected.
PROFINET Connection Status = OK.
PROFINET Connection Status not OK.
Local Redundant CPU is Ready & Active.
Local Redundant CPU is not Ready.
Remote Redundant CPU is Ready.
Remote Redundant CPU is not Ready.
Field Agent Running and Connected to Cloud.
Blink at 0.5 Hz: Field Agent Starting.
Blink at 1 Hz: Field Agent Running.
Booting up – diagnostics in progress.
Reset / Power not detected.
This LED is located between the RUN and STOP pushbuttons. It indicates the PLC Mode.
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