- Emerson Remote Terminal Unit Instruction Manual

CI-ControlWave Express Introduction / 1-11
• W17 - Input Power Selection (Controls Solar Power Shunt Reg.) N/A for +24Vdc CPUs
1 to 2 = 6V Power
2 to 3 = 12V Power
• W18 - COM1 Connector Selection
1 to 2 = Connector J4 (D connector) is active
2 to 3 = Alternate connector J11 is active
1.3.2.4 CPU/System Controller Board Configuration Switches
Three user-configurable DIP-Switches are provided on the CPU/System Controller Board.
These switches provide the following functionality:
• Four-bit DIP-Switch SW1 provides forced recovery functions. Recovery Mode as
supported by SW1-1 and SW1-2 or SW1-3 (forced by CW Console) accommodates FLASH
firmware upgrades to the CPU or allows the user to perform a Core Updump, i.e., upload
the contents of SRAM to a PC for evaluation (see Table 1-2).
• Eight-bit DIP-Switch SW2 is provided for user configuration settings (see Table 1-3).
• Eight-bit DIP-Switch SW3 provides loopback, termination control, and receiver bias
settings for the RS-485 port (COM3) (see Table 1-4).
Table 1-2 - CPU/System Controller Bd. SW1 Assignments
Recovery Mode/Local Mode Control
Switch Function Setting
SW1-1/2 Recovery/Local Mode
Both ON or OFF = Recovery Mode
SW1 OFF & SW2 ON = Local Mode
SW1-3 Force Recovery Mode
ON = Force Recovery Mode (via CW Console)
OFF = Recovery Mode disabled
SW1-4 LED Status
ON = Enable All LEDs
OFF = Disable All LED except Watchdog (WD)
* = Note: Only the Switch SW1 settings listed in this table, have been tested.
Table 1-3 - CPU/System Controller Bd. Configuration Switch SW2 Assignments
Note: Except for SW2-4, ON = Factory Default
Switch Function Setting - (ON = Factory Default)
SW2-1 Watchdog Enable
ON = Watchdog circuit is enabled
OFF = Watchdog circuit is disabled
SW2-2
Lock/Unlock
Soft Switches
ON = Write to Soft Switches and FLASH files
OFF = Soft Switches, configurations and FLASH files are locked
SW2-3
Use/Ignore
Soft Switches
ON = Use Soft Switches (configured in FLASH)
OFF = Ignore Soft Switch Configuration and use factory defaults
SW2-4
Core Updump
See Section 3.6
ON = Core Updump Disabled
OFF = Core Updump Enabled via Mode Switch (SW1)
SW2-5 SRAM Control
ON = Retain values in SRAM during restarts
OFF = Force system to reinitialize SRAM
SW2-6
System Firmware
Load Control *
ON = Enable remote download of System Firmware
OFF = Disable remote download of System Firmware
SW2-7 N/A
SW2-8 Enable
WINDIAG
ON = Normal Operation (don’t allow WINDIAG to run test)
OFF = Disable boot project (allow WINDIAG to run test)
* = Boot PROM version 4.7 or higher and System PROM version 4.7 or higher
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