CTI 2572-A, Installation And Operation Manual

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CTI 2572-A Installation and Operation Guide V1.3 73
APPENDIX A. 2572-A LED INDICATORS
The 2572A LED indicators provide a visual indication of the status of the module hardware, software,
network connection. The following sections describe how to interpret the various states of the LEDs.
Module Status and Network Status LED
The Module Status (MS) LED indicates the condition of the hardware and software. See the
following table for general use of the LED.
State General Condition
Steady Green (SG) Indicates the module hardware and software are operational.
Flashing Green (FG) Indicates the module is in a startup state. During this time, the communications
facilities of the module are not operational. Assuming no startup errors are
encountered, the LED should change to solid green after several seconds.
Flashing Red (FR) Indicates that a configuration error has been detected. Typically the user must
correct the configuration error and restart the module.
Solid Red (SR) Indicates that the application software is missing or corrupted.
Alternating Green/Red (GR) Used to indicate special conditions, such as a failed download attempt.
The Network Status(NS) LED indicates the condition of the TCP/IP network. The MS LED and NS
LEDs are used together to provide more specific status information.
MS NS Condition Comments
SG SG Module OK, Network Server Started This is the normal operational state
SG FG Reserved Currently unused
SG FR Reserved Currently unused
SG SR Duplicate IP Address Detected. There is
another network host that is using this
address. You must correct the problem by changing the
module IP address or changing the address of the
other network host.
SG G/R Unable to obtain IP parameters from a
DHCP server. The module was started
using the address stored in EEPROM. This is a temporary state to alert the user to this
condition when the module is first started.
SG OFF Module is waiting on the PLC to start the
network server. Meanwhile, the TCP/IP
interface is not operational. If the condition persists, ensure that the PLC is in
run mode and that the PLC logic is correct.
FG SG The module is downloading new software
from the file server. This is a temporary state that is set during file
download.
FG FG The module is performing startup activities.
The IP parameters have been obtained. This is a temporary state that is set once the
bootloader obtains a valid IP address.
FG FR Unable to download the new software file
from the file server. This is a temporary state that is set whenever an
unrecoverable error is encountered downloading a
file via TFTP