public int getSemaphoreStatus() {
int res = -1;
if (connection.isConnected()) {
int red =
connection.readRegister(
MEMORY_AREA_30, PlcConstants.SEMAPHORE_RED_REGISTER, PlcConstants.SEMAPHORE_RED_BIT);
int yellow =
connection.readRegister(
MEMORY_AREA_30,
PlcConstants.SEMAPHORE_YELLOW_REGISTER,
PlcConstants.SEMAPHORE_YELLOW_BIT);
int green =
connection.readRegister(
MEMORY_AREA_30,
PlcConstants.SEMAPHORE_GREEN_REGISTER,
PlcConstants.SEMAPHORE_GREEN_BIT);
res = 0;
res |= (red * Semaphore.RED.getValue());
res |= (yellow * Semaphore.YELLOW.getValue());
res |= (green * Semaphore.GREEN.getValue());
}
return res;
}
public int getStatus() {
int res = -1;
if (connection.isConnected()) {
res = connection.readRegister(MEMORY_AREA_B2, Register.STATUS_BITS.getValue());
}
return res;
}
public int getTrackPosition() {
int res = -1;
if (connection.isConnected()) {
int up =
connection.readRegister(
MEMORY_AREA_30, PlcConstants.TRACK_POS_UP_REGISTER, PlcConstants.TRACK_POS_UP_BIT);
int down =
connection.readRegister(
MEMORY_AREA_30,
PlcConstants.TRACK_POS_DOWN_REGISTER,
PlcConstants.TRACK_POS_DOWN_BIT);
if (up != 0) {
res = 1;
} else if (down != 0) {
res = 2;
}
}
return res;
}
