Bradley Smoker PLC-5 user manual Remote I/O System, Ethernet Transmit LED

F-6Troubleshooting

PROG

R

BATT

PROC

Ethernet Transmit LED

E

MFORCE

RUN

COMM

ENET

TRANSMIT

The PLC-5 Ethernet interface contains an Ethernet Transmit LED that lights (green) briefly when the Ethernet port is transmitting a packet. It does not indicate whether or not the Ethernet port is receiving a packet.

Remote I/O System

ACTIVE

ADAPTER

FAULT

I/O RACK

FAULT

Troubleshooting Guide for the 1771-ASB Series C and D Adapter Module

Indicators			Description	Probable Cause	Recommended Action
Active	Adapter	I/O
	Fault	Rack
On	Off	Off	Normal indication;
			remote adapter is fully
			operational
Off	On	Off		RAM memory fault, watchdog timeout	Replace module.
On	Blink	Off	Module placement error	I/O module in incorrect slot.	Place module in correct slot in chassis.
Blink in unison		Off	Incorrect starting I/O	Error in starting I/O group number or	Check switch settings.
			group number	I/O rack address
On	On	On	Module not	Incorrect transmission rate setting
			communicating
Off	On	On	Module not	Scan switch set for “all but last four	Reset scan switch setting.
			communicating	slots” in 1/4 rack
Blink	Off	Off	Remote adapter not	Controller is in program or test mode	Fault should be cleared by I/O scanner.
			actively controlling I/O	Scanner is holding adapter module in
			(scanner to adapter	fault mode
			communication link is
			normal)(1)
LEDs sequence on/off from			Module not	Another remote I/O adapter with the	Correct the address.
top to bottom			communicating	same address is on the link.

Publication 1785-UM012D-EN-P - July 2005