Simple scanning program

Hello,
I am fairly new to labview, I am trying to get a Newport HS Stage to work as a laser beam block and shutter my beam at 1Hz. The stage will simply scan into place, then back to its reset position at a rate that hopefully I can adjust in the VI.
Currently, I am having trouble writing the software using the PA - VI for the ESP300 motion controller.
I have set up a VI that contains two PA - VI's, each of these have their own set of numerical user entry boxes to set parameters. They are seperated with a Timer VI which has its own numerical input. My intention was that once the program started, PA - VI would run the stage to position A, the timer would initiate and then PA - VI (2) would run the stage back to B (and another timer would be added at the end to pause...), then i could simply run this program in loops.
The problem I am having is that when i run the program, data is sent to both PA - VI's immediately; once the PA - VI (1) and the timer has finished, PA - VI (2) does not run its course. Can anyone suggest a better programming method than what I have created to simply scan a stage back and forth at a desired frequency?
Thanks in advance for any help.
Chris

Without seeing the Pa-VI it's not easy, but you need to prevent the second one starting before the first one. With Labview, you should do that with dataflow. There may be (should be) an 'error in' and 'error out' terminal on the PA VI. If there is wire them together so when the first PA VI finishes it sends 'ok' to the second, which should wait until it gets it. You may need to use the time delay vi between the two PA-vi's. This also has an error in terminal which you can trigger from the first PA.
However, there may be a better way but without seeing what PA-VI is (and what it can do), it's not easy to advise.
Message Edited by Richard M on 12-09-2009 03:54 AM

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Attachments:
tt1.c ‏1 KB

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I am not willing to wade through the code, but this portion makes me conjecture your using an Oracle connect string instead of a class name.
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try {
TCPIP_.sendF();
} catch (IOException ex) {
Logger.getLogger(MainProcessing.class.getName()).log(Level.SEVERE, null, ex);
System.out.println("" + conectFlag);
return;
public void receive() {
try {
// Calendar cal1 = Calendar.getInstance(); //(1)オブジェクトの生成
// int year = cal1.get(Calendar.YEAR); //(2)現在の年を取得
// int month = cal1.get(Calendar.MONTH) + 1; //(3)現在の月を取得
// int day = cal1.get(Calendar.DATE); //(4)現在の日を取得
// int hour = cal1.get(Calendar.HOUR_OF_DAY); //(5)現在の時を取得
// int min = cal1.get(Calendar.MINUTE); //(6)現在の分を取得
// int sec = cal1.get(Calendar.SECOND); //(7)現在の秒を取得
byte[] rev = TCPIP_.receive();
// System.out.println("受信");
if (rev != null) {
byte[] Change = new byte[1];
int j = 0;
for (int i = 0; i < 1200; i++) {
Change[0] = rev;
current[j] = decimalChange(Change);
i++;
Change[0] = rev[i];
volt[j] = decimalChange(Change);
i++;
Change[0] = rev[i];
revolution[j] = decimalChange(Change);
} catch (NullPointerException e) {
public int decimalChange(byte[] byteData) {
int bit0, bit1, bit2, bit3, bit4, bit5, bit6, bit7;
int bit = 0;
for (int i = 0; i < 8; i++) {
int a = (byteData[0] >> i) & 1;
System.out.print(a);
System.out.println();
return 1;
public void destroy() {
// 切断
if (TCPIP_ != null) {
TCPIP_.disconnect();
if (TCPIP_.getSocket_() != null) {
try {
System.out.println("\ndisconnect:" + TCPIP_.getSocket_().getInetAddress().getHostAddress() + " " + TCPIP_.getSocket_().getPort());
} catch (Exception e) {
TCPIP_ = null;
public boolean conect(int IP) {
conectFlag = false;
String address = "192.168.1." + IP;
System.out.println(address);
try {
argIp_ = InetAddress.getByName(address);
} catch (UnknownHostException e) {
// xp.init();
isApplet_ = false;
start();
return (conectFlag);
public void send(String command, int value, int sendData[][], int i) {
int j = 0;
Integer value_ = new Integer(value);
byte values = value_.byteValue();
Integer progNum = new Integer(i);
byte progNums = progNum.byteValue();
try {
TCPIP_.send(command, values, progNums);
for (j = 1; j <= i; j++) {
Integer time = new Integer(sendData[j][0]);
byte times = time.byteValue();
Integer power = new Integer(sendData[j][1]);
byte powers = power.byteValue();
TCPIP_.send(times, powers);
TCPIP_.flush();
} catch (IOException ex) {
Logger.getLogger(MainProcessing.class.getName()).log(Level.SEVERE, null, ex);
public void file(String name) {
ublic void fileclose(String name, String command, int value, int sendData[][], int i) {
try {
fos = new FileOutputStream("" + name + ".csv");
osw = new OutputStreamWriter(fos, "MS932");
bw = new BufferedWriter(osw);
String msg = "" + command + "," + value + "";
bw.write(msg);
bw.newLine();
for (int j = 1; j <= i; j++) {
msg = "" + j + "," + sendData[i][0] + "," + sendData[i][1];
bw.write(msg);
bw.newLine();
bw.close();
} catch (IOException ex) {
Logger.getLogger(MainProcessing.class.getName()).log(Level.SEVERE, null, ex);

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