Replace the battery – Rockwell Automation 1747-L5xx SLC 5/03, 5/04, and 5/05 Modular Processors User Manual
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10 SLC 5/03, SLC 5/04, and SLC 5/05 Modular Processors
Publication 1747-IN009B-EN-P - March 2008
2. Set the communication parameters of the software to match the default
parameters of the processor.
Replace the Battery
Your SLC processor provides back-up power for RAM through a replaceable lithium 
battery. This battery provides back-up for approximately 2 years. The BATT LED 
indicator on the front of the processor alerts you when the battery voltage has 
fallen below a threshold level.
To replace the lithium battery follow these steps.
1. Remove power from the SLC 500 power supply.
2. Remove the processor from the chassis by pressing the retainer clips at both
the top and bottom of the module and slide it out.
Channel 0 Configuration Channel 1 Configuration
SLC 5/03, 5/04, 5/05
SLC 5/03
SLC 5/04
SLC 5/05
DF1 Full-duplex:
•
no handshaking
•
19.2 Kbaud
•
CRC Error Check
•
duplicate detect on
•
no parity
DH-485:
•
19.2 Kbaud
•
node address = 1
DH+:
•
57.6 Kbaud
•
node address = 1
Ethernet:
BOOTP enabled
ATTENTION
Do not remove the processor from the SLC 500 chassis until all power is 
removed from the SLC 500 power supply. If you remove the power supply while 
power is applied, an electrical arc can occur. This could cause an explosion in 
hazardous location installations.
ATTENTION
Do not expose the processor to surfaces or other areas that may typically hold 
an electrostatic charge. Electrostatic charges can alter or destroy memory.