Schneider Automation Modicon Quantum Ethernet Guida Utente Pagina 203

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CPU Modules
35013379 02 October 2007 203
LED Indicators
and Descriptions
The following figure shows the LED indicators.
The following table provides a description of the LED indicators for the
140CPU53414A module.
LED Descriptions
LEDS Color Indication when On
Ready Green The CPU has passed power-up diagnostics.
Run Green The CPU has been started and is solving logic.
Bat Low Red The battery needs replacing or is not present.
Modbus Green Communications are active on Modbus port 1 or 2.
Modbus + Green Communications are active on the Modbus Plus port.
Error A Red Indicates communications error on the Modbus Plus port.
Mem Prt Amber Memory is write-protected (the memory protect switch is on).
Ready
Run
Modbus
Error A
Mem Prt
Modbus +
Bat Low
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com
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