Instruction manual
ControlWave Gas Flow Computer (GFC Plus) Instruction Manual (CI-ControlWave GFC Plus)
Revised Feb-2013 Installation 2-15
2.3.1 Setting DIP Switches on the CPU/System Controller Board
Before you install the CPU/System Controller board, you must
determine the settings for three banks of DIP switches. Refer to Figure
2-8 for the location of the DIP switch banks. Refer to Tables 2-1, 2-2,
and 2-3 for an explanation of the DIP switch positions.
Notes:
Examine each bank of DIP switches carefully to note the switch
direction for ON or OFF. Different versions of the board may use
different switch positions.
Only switch combinations described have been tested.
Table 2-1. CPU/System Controller Board Switch SW1
SW1 Setting Function Mode
1 & 2
Recovery
Mode
Recovery Mode = Both SW1-1 and SW1-2 ON or both
SW1-1 and SW1-2 OFF. This is only
used during system firmware
upgrades.
Local Mode = SW1-1 OFF and SW1-2 ON (Factory
Default). Select local mode for normal
running operations.
3
Force
Recovery
Mode
Enables recovery mode. Values are:
ON (enables recovery mode)
OFF (disables recovery mode). – This is the factory
default.
4
LED status
ON (Enable IDLE LED status indication)
OFF (Disable IDLE LED status indication)
Table 2-2. CPU/System Controller Board Switch SW2
SW2 Setting Function Mode
1
Watchdog
Enable
Controls whether the system enters a watchdog state
when a crash or system hang-up occurs and automatically
restarts. Values are:
ON (Enables watchdog circuit; factory default)
OFF (Disables watchdog circuit and prevents automatic
restart)
2
Lock/Unlock
Soft Switches
Controls the ability to modify soft switches, other
configurations, and flash files. Values are:
ON (Unlocks soft switches and flash files; factory
default).
OFF (Locks soft switches, configurations, and flash files)
3
Use/Ignore
Soft Switches
Controls the use of soft switches. Values are:
ON (Enable user-defined soft switches configured in flash
memory; factory default)
OFF (Disable soft switch configuration and use factory