•
12V to 24V DC/DC Converter Control.
•
LED Power control.
•
Ethernet disable.
•
USB disable.
•
Lowering the CPU clock speed for reduced power mode.
The SCADAPack 350 provides three internal digital outputs that can be operated by the user
application to manage the power saving features. Internal digital outputs 8, 9 and 10 and the power
management functions they control are described in the following sections.
Disabling and enabling of the Ethernet and USB ports as well as a reduction of the clock speed can
be done in TelePACE using the CNFG Power Mode register assignment. The SETPMODE/
GETPMODE functions in ISaGRAF allow a user application to control these power management
features. For C applications, use the SetPowerMode and GetPowerMode functions. Refer to the
appropriate software manual for information on using and controlling the internal Digital Outputs.
12V to 24V boost
ON/OFF
Dout 9
P10 - Vloop
P2
I/O Expansion
3.3/5V supply
P3 – Power In
Dout 8
Sleep = open
P6 – COM1
RS-485
P8 – COM2
RS-232/485
P9 – COM3
RS-232
Dout 10
J13
5305 Analog
Output Module
P4/5
USB
P7
LAN
Figure 3: Power Management
4.4.1
COM3 Serial Port Power Control
The COM3 serial port is intended for use with the SCADAPack Vision or other Human Machine
Interface (HMI). Pin 1 of the RJ-45 connector provides a switched 5-volt power for the SCADAPack
Vision or other HMI.
10.1.2-COM3 RS-232 Serial Port
for information on COM3 and section
for wiring examples. HMI power is controlled in the following ways.
•
When the LED power is enabled, the HMI power is turned on.
•
When the LED power is disabled and internal
Digital Output 10
is
ON
HMI power is turned on.
•
When the LED power is disabled and internal
Digital Output 10
is
OFF
HMI power is turned
off.
SCADAPack 350 Hardware Manual
February 14, 2007
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