10
USB PORTS AND PUSHBUTTON SWITCHES
Behind the controller’s front access door are two USB ports, two pushbutton switches, and an associated LED.
1. PROG
- USB 2.0 for usage with USB flash drive
2. DEBUG
- Micro-A USB for serial debug communications
3. BACKUP
- Pushbutton switch to start a USB backup, or if held in during power up/boot up, a factory recovery image
4. SHT/DWN
- Recessed switch for controlled shutdown
5. BACKUP
- LED to indicate USB media present, or a backup, restore, or factory recovery image in progress
•
The DEBUG port is a standard Micro-A type USB port for serial debug communications to the controller. You can use a serial terminal
program (for example: PuTTY) to access the controller’s “system shell” menu. This provides access to a few basic platform settings.
Default DEBUG port settings are: 115200, 8, N, 1 (baud rate, data bits, parity, stop bits).
NOTE:
Login requires admin-level platform
credentials.
•
The SHT/DWN pushbutton initiates a “controlled shutdown” of the controller, ensuring that all station data is preserved. This provides an
alternative to the platform “stop station” command, while connected online with controller.
WIRING: EARTH GROUND AND POWER
Earth Ground and Power
Earth grounding provides protection from electrostatic discharge or other forms of EMI.
1. Install the included earth ground wire to the
controller’s earth ground spade lug and terminate
the other end to a nearby earth ground.
2. Unplug the controller’s 2-position power
connector plug and terminate the 24V supply
source (AC or DC) to the connector. Leave
connector unplugged for now.
NOTES:
Depending on power sourced used:
• 2.1
(AC): Dedicated 24V transformer required, with
neither side of the transformer secondary tied to
ground
• 2.2
(DC): Polarity is unimportant (uses on board
diode bridge), with neither leg tied to ground
• 2.3
(Wall-mount AC adapter, NB-PS1) instead of
wiring 24V to 2-position connector
PREREQUISITE:
A nearby earth ground point is needed.
Before making power terminations, de-energize the 24V
power source. Do not restore power until completing all
other mounting and wiring.
