GE RSTi-EP - Page 418

Chapter 14Standalone controller for RSTi-EP
GFK-2958E RSTi-EP User Manual 414
Membrane Run/Stop push button
Pressing Membrane Run/Stop push button briefly, will change the state of CPU from
the state it is in to the next state. Switch operation state as given in the following
state diagram:
The Run/Stop switch is enabled by default; it can be disabled in PME Hardware Configuration
(HWC) settings.
LED Indicators (LEDs)
Ethernet Status Indicators
There are two LEDs (Yellow/Green) for each Ethernet ports of LAN1 and LAN2, which are
embedded in the RJ-45 connectors. The green LED indicates an Ethernet connection has been
established. The yellow LED indicates packet traffic.
Module status Indicators
There are three LEDs and one Membrane Push Button on the front panel (The one in
blue color) as shown in the figure. The below table describes the behavior of each
module LED:
Push Button: Toggles the current mode of the PLC.
LED
LED State
Operating State
OK
On Green
PLC has passed its power-up diagnostics and is functioning properly
Off
Power is not applied or PLC has a problem.
Blinking; All
other LEDs off
PLC in STOP/Halt state; possible watchdog timer fault. If the
programmer cannot connect, cycle power and refer to the
fault tables.
RUN
On Green
PLC is in RUN mode.
Off
PLC is in STOP mode.
Blinking; All
other LEDs off
Indicates that PLC has encountered a fatal error and is
blinking the error code.
Fault
On Green
PLC is in STOP/Faulted mode: a fatal fault has occurred.