Publication 1747-UM011G-EN-P - June 2008
The figure on page 87 shows some ofthe hardware components of the 
SLC 5/03 processors (1747-L531, 1747-L532, and 1747-L533).
SLC 5/03 Hardware Components
The table below provides a general explanation of each processor 
status indicator on the SLC 5/03 processor.
SLC 5/03 Status Indicators
SLC 5/03 CPU
RUN
FLT
BATT
FORCE
DH485
RS232
RUN REM PROG
Memory 
Module
Left Side View Front View
DH-485, DF1, 
or ASCII 
Channel 0
Battery 
(provides 
back-up power 
for the CMOS 
RAM)
Serial Number and 
Catalog Number
DH-485 
Channel 1
Keyswitch
Operating System Download Protection Jumper 
– do not move unless updating processor 
Operating System firmware.
Processor 
Status 
Indicator
(1)(2)
When It Is Indicates that
RUN 
(Color: green)
On (steady) The processor is in the Run mode.
Flashing (during operation) The processor is transferring a program from RAM to the memory module.
Off The processor is in a mode other than Run.
FLT
(Color: red)
Flashing (at power up) The processor has not been configured.
Flashing (during operation) The processor detects a major error either in the processor, chassis or memory.
On (steady) A fatal error is present (no communication).
Off There are no errors.
BATT
(Color: red)
On (steady) The battery voltage has fallen below a threshold level, or the battery is missing or not 
connected.
Off The battery is functional.Control Techniques FM-2
Control Techniques FM-3
Control Techniques FM-4
Control Techniques FM-3E
Control Techniques FM-4DN
Control Techniques F3R2E 6045-8002 Rev C
Control Techniques F3N2C
Control Techniques F3N5E
Control Techniques F3M524
Control Techniques FXM4 FXM-4 
Control Techniques FXM5 FXM-5
Control Techniques HB017
Control Techniques ALP-430 ALP430
Control Techniques RSR-2 Part# 960526-03
Control Techniques SLA1200025
Control techniques FOCUS 3 F3N5E 2415-8005
Control Techniques FOCUS 2 2450-8002
Control Techniques DIN3380
Control Techniques SE23400220
Control Techniques 9500-8602-R
Control Techniques CDE15HPICD
Control Techniques 7820-302520-080?0
Control Techniques 9600-6400 Dominax DD400
Control Techniques V4500ICD
Control Techniques 4Axis Axima 4000
Control Techniques WA2101

1756-M03SE  1756-M03SE  1756-M03SE
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Control Techniques DBE1100S 
Control Techniques SKC3400220
Control Techniques SP1402
Control Techniques SM-I/O
Control Techniques Axima 4000 AX-4000-00-00-030
Control Techniques ALP-130
Control Techniques SE23400400
Control Techniques SE 11200037 230V