Gyro Sensor GS-12 not working with Opencm9.04

Issue:

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Connect GS-12 to Opencm9.04 board ports 1 and 2.
Attach GS-12 to a flat surface for calibration.
Upload Gyro_XY_Read from ROBOTIS_OpenCM IDE sensor examples.
Open Serial Monitor.
X,Y Readings from sketch print statements never vary when rotating sensor.
Same result if I use Arduino IDE

If I connect a DMS-80 to Opencm9.04 port 1 and Upload OLLO DMS Read, reading varies as objects get closer.

Does this indicate the GS-12 is faulty or is there something I am missing?

DYNAMIXEL Servo:

LIST ALL DYNAMIXEL SERVOS USED IN THIS PROJECT

XL-320 (none connected during this test, power batteries disconnected)
DYNAMIXEL Controller:

LIST ALL DYNAMIXEL CONTROLLERS USED IN THIS PROJECT

OpenCm9.04
Software Interface:

ROBOTIS_OpenCM IDE, Arduino IDE