The Honeywell 51196712-200, also cataloged as the 51196712 Engineering Roving Keyboard, serves as the primary 51196712 Industrial Keyboard utilized to execute mobile data entry and configuration tasks across Honeywell Distributed Control Systems (DCS) platforms.
Hardware Specifications
Parameter
Specification
Model
51196712-200
Brand
Honeywell
Origin
USA
Weight
1.27 kg (2.80 lbs)
Dimensions
42 cm x 18 cm x 4 cm
Operating Temp
0 to 50 deg C
Power Consumption
5 VDC nominal interface power
Color Profile
Gray
Product Category
PLCs / Machine Control / Industrial Keyboard
Application Mode
Engineering Roving
Process Control Power Infrastructure
DCS Loop Stabilization Engineered specifically to support roving engineering terminals, the keyboard interface incorporates localized electrical signal filtering. This active suppression guarantees that plugging or unplugging the roving terminal does not introduce high-frequency bus noise or voltage drops across neighboring DCS network bridges or station control loops.
Channel-to-Channel Isolation The integrated control circuit design separates the primary key matrix arrays from the physical chassis connection lines. This configuration shields internal microprocessor elements against stray static potentials up to standard industrial electrostatic discharge thresholds, ensuring continuous data transmission during terminal deployment.
Frequently Asked Questions
Q: What operational changes occur when deploying a roving keyboard versus a fixed console unit?
A: The 51196712-200 is electrically configured for ad-hoc attachment to active engineering nodes. It uses optimized firmware polling that lets the host operating system scan and map key matrices instantly without requiring a full station reboot or interrupting ongoing process visualization tasks.
Q: How should power constraints be handled when using this keyboard on extended cable extensions?
A: The keyboard draws standard current directly from the host connection hub. If long extension leads are used for roving field diagnostics, line voltage drop must be monitored to ensure the input power potential at the keyboard terminal remains within the required 5 VDC tolerance range.
