Chapter 2
10
Bedrock Secure OSA Remote User Manual - BRDOC020_001
10/11/18
OSA Remote Operation
The OSA Remote Operation section provides information that is specific to the
following OSA Remote functions:
•
power input
•
OSA Remote Controller
•
analog and discrete I/O operating modes
•
serial I/O
•
CAN bus.
OSA Remote Power
Input
Power is provided to the OSA Remote by a 9-30 V DC power source.
Note
Note that the OSA Remote turns on at 10 V and will shut off below 9 V.
UL has designated the OSA Remote as a low voltage, limited current (LVLC)
source. UL recommends using a UL Listed Class 2 power supply for the
9-30 V DC input.
See “OSA Remote Power Input” in “Hardware Installation” for information on
power connections including cabling and pin outs.
OSA Remote Controller
Bedrock Secure OSA Remotes feature a microcontroller that provides the
operating system, network communications, provisions for hardware
configuration, and management of system operations. The OSA Remote
microcontroller scans inputs, executes control functions and writes outputs. It
also provides control and system status information to upper Ethernet systems,
e.g., a workstation.
The OSA Remote microcontroller includes the following features:
•
512 MB of RAM
•
8 kB of MRAM for storage of persistent and retain variables
•
standard 8 GB of flash memory for control applications with an optional
32 GB available