Rice Lake 920i Programmable HMI Indicator/Controller - ControlNet Interface - Manual (Page 8)

4 ControlNet Installation and Programming Manual
2.4 LED Status Indicators
An LED array on the ControlNet module provides
status information for troubleshooting. LED 1
provides module status; LED 2 provides status
information for both Channel A and B; LED 3
provides status information that can apply to either
channel; LED 4 indicates the presence of a network
connection to the module.
Table 2-1 on page 4 summarizes the function of the
module and network status LEDs.
Figure 2-5. ControlNet Status LED Module
A single bi-color watchdog LED on the surface of the
ControlNet module provides diagnostic information
for debugging the module itself. Table 2-2 lists the
indications provided by the debugging LED.
1
2
3
4
Module Owned
Channel A
Channel B
Module Status
LED Status Description
LED 1
Module Status
Steady Green Connection in run state
Flashing Green Connecting, connection idle
Steady Red Major fault
Flashing Red Minor fault
LED 2
Channel A and B
Off Module not initialized
Steady Red Major fault
Flashing Red Node configuration error
Alternating Red/Green Self-test
LED 3
Channel A or B
Off Channel disabled
Steady Green Normal channel operation
Flashing Green Temporary error (node will self-correct) or not configured
Flashing Red No other nodes, or media fault
Alternating Red/Green Network configuration error
LED 4
Module Owned
Off No connection opened
Steady Green Connection opened
Table 2-1. Module and Network Status LED Indications
Status Description
Off No power
Red, 4Hz DPRAM check fault
Red, 2Hz ASIC and FLASH ROM check fault
Red, 1Hz RAM check fault
Green, 2Hz Module not initialized
Green, 1Hz Module initialized and running
Table 2-2. Debugging LED Indications