5.1  Startup Sequence and Basic Operation
5.1.1  DIP Switch Settings
5-2
5.1  Startup Sequence and Basic Operation
This section describes the MP2300S startup sequence and basic operation together with the DIP switch settings, self-
diagnosis at startup, and LED indicator patterns.
5.1.1  DIP Switch Settings
Set the DIP switch (SW1) on the Basic Module to control operations of the startup sequence. The six switches are pro-
vided on the DIP switch (SW1) on the Basic Module as shown in the following figure. The following table lists the 
functions of six switches.
No.
Switch 
Name
Status Operating Mode
Default 
Setting
Remarks
S1-6
STOP
ON User program stops
OFF
Set to ON to stop user program operation.
OFF User program operation
S1-5
SUP
ON System load
OFF
If set to ON, starts up in the mode that can renew the version 
of the firmware.
OFF Normal operation
S1-4
INIT
ON Memory clear
OFF
Set to ON to clear memory.
Programs stored in flash memory will be run when Memory 
Clear is set to OFF.
S and M registers are cleared to all zeros.
OFF Normal operation
S1-3
CNFG
ON Self-configuration mode
OFF
Set to ON for self-configuration of connected devices.
OFF Normal operation
S1-2
MON
ON System use
OFF
Always set to OFF.
OFF Normal operation
S1-1
TEST
ON
System use
Adjusted before
Shipment
OFF
Always set to OFF.
OFF Normal operation
SW
TEST
MON
CNFG
INT
SUP
STOP
NO
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