#pragma config(I2C_Usage, I2C1, i2cSensors)
#pragma config(Sensor, in1, LeftPot, sensorPotentiometer)
#pragma config(Sensor, in2, RightPot, sensorPotentiometer)
#pragma config(Sensor, dgtl1, Programming_Skills, sensorTouch)
#pragma config(Sensor, dgtl7, RightButton, sensorTouch)
#pragma config(Sensor, dgtl8, LeftButton, sensorTouch)
#pragma config(Sensor, dgtl10, Offense_Right, sensorTouch)
#pragma config(Sensor, dgtl11, Defense_Left, sensorTouch)
#pragma config(Sensor, dgtl12, Defense_Right, sensorTouch)
#pragma config(Sensor, I2C_1, , sensorQuadEncoderOnI2CPort, , AutoAssign)
#pragma config(Sensor, I2C_2, , sensorQuadEncoderOnI2CPort, , AutoAssign)
#pragma config(Motor, port1, RightBack, tmotorVex393HighSpeed, PIDControl, reversed, encoder, encoderPort, I2C_2, 1000)
#pragma config(Motor, port2, RightFront, tmotorVex393HighSpeed, openLoop, reversed)
#pragma config(Motor, port3, IntakeLeft, tmotorVex393, openLoop, reversed)
#pragma config(Motor, port4, IntakeRight, tmotorVex393, openLoop, reversed)
#pragma config(Motor, port5, SWLeft, tmotorVex393, openLoop)
#pragma config(Motor, port6, SWRight, tmotorVex393, openLoop)
#pragma config(Motor, port7, LiftRight, tmotorVex393, openLoop)
#pragma config(Motor, port8, LiftLeft, tmotorVex393, openLoop)
#pragma config(Motor, port9, LeftFront, tmotorVex393HighSpeed, openLoop)
#pragma config(Motor, port10, LeftBack, tmotorVex393HighSpeed, PIDControl, encoder, encoderPort, I2C_1, 1000)
//*!!Code automatically generated by 'ROBOTC' configuration wizard !!*//
When I run in Driver Control forward, 12C_2 (Right Back Motor) runs -. While 12C_1 (Left Back Motor) runs +.
The RIGHT side motors are reversed already. The LEFT side is not.