Emerson Process Management Bristol ControlWave ExpressPAC - Manual (Page 26)

ControlWave ExpressPAC Instruction Manual (CI-ControlWave EPAC)
2-12 Installation Revised Mar-2011
SW2 Setting Function Mode
ON (Disables core updump; factory default)
OFF Core updump
5 SRAM Control Manages SRAM contents following a low power situation
or a power outage. Values are:
ON (Retain values in SRAM during restarts; factory
default)
OFF (Reinitialize SRAM) – Data in SRAM lost during
power outage or re-start.
6 System
Firmware Allows a remote download of system firmware (on units
equipped with boot PROM version 4.7 or higher and
system PROM version 4.7 and higher). Values are:
ON (Enable remote download of system firmware; factory
default)
OFF (Disable remote download of system firmware)
7 N/A Not currently used.
8 Enable
WINDIAG Suspends normal operation and allows diagnostic
routines. Values are:
ON (Permits normal system operation, including the boot
project, and disables the WINDIAG diagnostics from
running; factory default)
OFF (Allow WINDIAG to run test; disable boot project and
normal system operation.)
Note: Setting both switch 8 and switch 3 to OFF (closed)
sets all communication ports to 9600 bps operation.
All serial communication ports must be set at 9600
bps before WINDIAG can perform communication
tests.
Note: Table 2-3 describes switch settings for RS-485 port operation.
You may want to review Section 2.3.7 on RS-485 configuration
before you set these switches.
Table 2-3. RS-485 Configuration Switch SW3
Switch
Setting
Function Mode
1 TX+ to RX+ Loopback / 2-
wire ON (2-wire operation or loopback enabled)
OFF (4-wire operation and loopback
disabled)
2 TX- to RX- Loopback / 2-
wire ON (2-wire operation or loopback enabled)
OFF (4-wire operation and loopback
disabled)
3 100 Ohm RX+ Termination ON (End nodes only)
4 100 Ohm RX- Termination ON (End nodes only)
5 N/A Not currently used
6 N/A Not currently used