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ControlWave Express Instruction Manual (CI-ControlWave Express)
Figure 5-6. CPU/System Controller LEDs
Table 5-1. LEDs on Piggy-back LED board
LED Color
Description
PG
RED
ON = Power good
WD
RED
ON = Watchdog condition – program crash; OFF = Normal operation
IDLE
RED
ON = CPU has free time at end of execution cycle. Should be on
frequently.
OFF = CPU overloaded
STA
n
RED See
Figure 5-7
and
Table 5-1
for LED patterns and explanations
TX1
RED
Transmit activity on COM1
RX1
RED
Receive activity on COM1
TX2
RED
Transmit activity on COM2
RX2
RED
Receive activity on COM2
TX3
RED
Transmit activity on COM3
RX3
RED
Receive activity on COM3
Receive
GREEN
Receive activity on Ethernet port
Transmit YELLOW
Transmit
activity on Ethernet port
Revised Mar-2011
Service & Troubleshooting
5-9
Summary of Contents for Bristol ControlWave Express
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