Status Indicator Leds; Alphanumeric Display; Battery; Ethernet Communications Ports - CTI Janus 2500C-J Series Installation And Operation Manual

Programmable automation controller
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2.3 Status Indicator LEDs

LED
Color
CPU GOOD
BLUE
RUN
BLUE
ERROR
YELLOW

2.4 Alphanumeric Display

The Alphanumeric Display is used to display IP parameters (i.e. IP addresses and subnet information) and active
error status information. If desired, the display of IP parameters can be disabled using the embedded web server.
When an error state is active, the corresponding error code is displayed. When multiple error states are active, the
highest priority active error code is displayed. See
codes and descriptions.

2.5 Battery

A replaceable high-power Lithium Metal Oxide battery provides an auxiliary power source to provide an orderly
system shutdown when DC power from the backplane is lost while the controller is in RUN state. The battery is
accessible through the front panel battery cover and can be replaced while the application is running.
The battery circuit is automatically enabled when the backplane power is removed. After a successful shutdown,
the battery circuit is disabled to preserve battery life. See
regarding battery installation and care.

2.6 Ethernet Communications Ports

The RJ-45 Ethernet ports, labeled P
the Janus Classic controller, all ports are capable of operating at 1000Mb (1Gb) full duplex. For the Janus Compact
controller, Ports A and B are capable of operating at 1000Mb (1Gb) full duplex while ports C and D are capable of
CTI Janus Programmable Automation Controller IOG
State
Indication
Off
Not operational – module initialization failure or no power
Flash
N/A
On
Module hardware/firmware passed all power-on tests and operation
is normal
Off
Application program stopped or not loaded
Flash
Program loaded but logic is not running (LOGIC STOP state).
I/O interface and communication protocols are active.
On
Application program is executing (RUN state)
Off
No active errors
Flash
Critical error that prevents application from entering RUN mode (Error
Code displayed on front panel)
On
After software boot, indicates active error conditions. These errors
can occur while in RUN mode and will not prevent application from
transferring to RUN mode.
(Error Code displayed on front panel)
On initial power up, this signals that the hardware is powered and
ready for software boot.
APPENDIX A SYSTEM ERROR CODES
A, P
B, P
ORT
ORT
ORT
Section 3.2.4: Inserting the Battery
C,
P
D, are identical in their operation and usage. For
AND
ORT
for a list of system error
for instructions
15

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