override public void HandleMsg(string msg)
{
if (msg == "errorBeep")
{
Beeps(3);
}
else if (msg == "beepTwice")
{
Beeps(2);
}
else if (msg == "goodBeep")
{
Beeps(1);
}
else if (msg == "twoPairs")
{
Thread.Sleep(300);
Beeps(2);
Thread.Sleep(300);
Beeps(2);
}
else if (msg == "rePoll")
{
scale_state = WeighState.None;
sp.Write("S14\r");
}
}
override public void HandleMsg(string msg)
{
if (msg == "errorBeep") {
Beeps(3);
} else if (msg == "beepTwice") {
Beeps(2);
} else if (msg == "goodBeep") {
Beeps(1);
} else if (msg == "twoPairs") {
Thread.Sleep(300);
Beeps(2);
Thread.Sleep(300);
Beeps(2);
} else if (msg == "rePoll") {
/* ignore these commands on purpose
scale_state = WeighState.None;
GetStatus();
*/
} else if (msg == "wakeup") {
scale_state = WeighState.None;
GetStatus();
} else if (msg == "reBoot") {
scale_state = WeighState.None;
lock (writeLock) {
// ASCII: 10
sp.Write(new byte[]{ STX, 0x31, 0x30, ETX }, 0, 4);
Thread.Sleep(5000);
// ASCII: 14
sp.Write(new byte[]{ STX, 0x31, 0x34, ETX }, 0, 4);
}
}
}
public SPH_NCR_Scale(string p) : base(p)
{
sp = new SerialPort();
sp.PortName = this.port;
sp.BaudRate = 9600;
sp.DataBits = 7;
sp.StopBits = StopBits.One;
sp.Parity = Parity.Odd;
sp.RtsEnable = true;
sp.Handshake = Handshake.None;
sp.ReadTimeout = 500;
scale_state = WeighState.None;
last_weight = "0000";
sp.Open();
}
public SPH_Magellan_Scale(string p) : base(p)
{
sp = new SerialPort();
sp.PortName = this.port;
sp.BaudRate = 9600;
sp.DataBits = 7;
sp.StopBits = StopBits.One;
sp.Parity = Parity.Odd;
sp.RtsEnable = true;
sp.Handshake = Handshake.None;
sp.ReadTimeout = 500;
scale_state = WeighState.None;
last_weight = "0000";
sp.Open();
}
override public void HandleMsg(string msg)
{
if (msg == "errorBeep")
{
Beeps(3);
}
else if (msg == "beepTwice")
{
Beeps(2);
}
else if (msg == "goodBeep")
{
Beeps(1);
}
else if (msg == "twoPairs")
{
Thread.Sleep(300);
Beeps(2);
Thread.Sleep(300);
Beeps(2);
}
else if (msg == "rePoll")
{
/* ignore these commands on purpose
* scale_state = WeighState.None;
* GetStatus();
*/
}
else if (msg == "wakeup")
{
scale_state = WeighState.None;
GetStatus();
}
else if (msg == "reBoot")
{
scale_state = WeighState.None;
lock (writeLock) {
// ASCII: 10
sp.Write(new byte[] { STX, 0x31, 0x30, ETX }, 0, 4);
Thread.Sleep(5000);
// ASCII: 14
sp.Write(new byte[] { STX, 0x31, 0x34, ETX }, 0, 4);
}
}
}
override public void HandleMsg(string msg)
{
if (msg == "errorBeep")
{
Beeps(3);
}
else if (msg == "beepTwice")
{
Beeps(2);
}
else if (msg == "goodBeep")
{
Beeps(1);
}
else if (msg == "twoPairs")
{
Thread.Sleep(300);
Beeps(2);
Thread.Sleep(300);
Beeps(2);
}
else if (msg == "rePoll")
{
/* ignore these commands on purpose
* scale_state = WeighState.None;
* GetStatus();
*/
}
else if (msg == "wakeup")
{
scale_state = WeighState.None;
GetStatus();
}
else if (msg == "reBoot")
{
scale_state = WeighState.None;
lock (writeLock) {
sp.Write("S10\r");
Thread.Sleep(5000);
sp.Write("S14\r");
}
}
}
private string ParseData(string s)
{
if (s.Substring(0, 2) == "S0") // scanner message
{
if (s.Substring(0, 4) == "S08A" || s.Substring(0, 4) == "S08F") // UPC-A or EAN-13
{
return(s.Substring(4));
}
else if (s.Substring(0, 4) == "S08E") // UPC-E
{
return(this.ExpandUPCE(s.Substring(4)));
}
else if (s.Substring(0, 4) == "S08R") // GTIN / GS1
{
return("GS1~" + s.Substring(3));
}
else if (s.Substring(0, 5) == "S08B1") // Code39
{
return(s.Substring(5));
}
else if (s.Substring(0, 5) == "S08B2") // Interleaved 2 of 5
{
return(s.Substring(5));
}
else if (s.Substring(0, 5) == "S08B3") // Code128
{
return(s.Substring(5));
}
else
{
return(s); // catch all
}
}
else if (s.Substring(0, 2) == "S1") // scale message
/**
* The scale supports two primary commands:
* S11 is "get stable weight". This tells the scale to return
* the next stable non-zero weight.
* S14 is "get state". This tells the scale to return its
* current state.
*
* The "scale_state" variable tracks all six known scale states.
* The state is only changed if the status response is different
* than the current state and this only returns a non-null string
* when the state changes. The goal is to only pass a message back
* to POS once per state change. The "last_weight" is tracked in
* case the scale jumps directly from one stable, non-zero weight
* to another without passing through another state in between.
*/
{
if (s.Substring(0, 3) == "S11") // stable weight following weight request
{
GetStatus();
if (scale_state != WeighState.NonZero || last_weight != s.Substring(3))
{
scale_state = WeighState.NonZero;
last_weight = s.Substring(3);
return(s);
}
}
else if (s.Substring(0, 4) == "S140") // scale not ready
{
GetStatus();
if (scale_state != WeighState.None)
{
scale_state = WeighState.None;
return("S140");
}
}
else if (s.Substring(0, 4) == "S141") // weight not stable
{
GetStatus();
if (scale_state != WeighState.Motion)
{
scale_state = WeighState.Motion;
return("S141");
}
}
else if (s.Substring(0, 4) == "S142") // weight over max
{
GetStatus();
if (scale_state != WeighState.Over)
{
scale_state = WeighState.Over;
return("S142");
}
}
else if (s.Substring(0, 4) == "S143") // stable zero weight
{
GetStatus();
if (scale_state != WeighState.Zero)
{
scale_state = WeighState.Zero;
return("S110000");
}
}
else if (s.Substring(0, 4) == "S144") // stable non-zero weight
{
GetStatus();
if (scale_state != WeighState.NonZero || last_weight != s.Substring(4))
{
scale_state = WeighState.NonZero;
last_weight = s.Substring(4);
return("S11" + s.Substring(4));
}
}
else if (s.Substring(0, 4) == "S145") // scale under zero weight
{
GetStatus();
if (scale_state != WeighState.Under)
{
scale_state = WeighState.Under;
return("S145");
}
}
else
{
GetStatus();
return(s); // catch all
}
}
else // not scanner or scale message
{
return(s); // catch all
}
return(null);
}
private string ParseData(string s)
{
if (s.Substring(0,1) == "0") { // scanner message
if (s.Substring(0,3) == "08A" || s.Substring(0,3) == "08F") { // UPC-A or EAN-13
return s.Substring(3);
} else if (s.Substring(0,3) == "08E") { // UPC-E
return this.ExpandUPCE(s.Substring(3));
} else if (s.Substring(0,3) == "08R") { // GTIN / GS1
return "GS1~"+s.Substring(2);
} else if (s.Substring(0,4) == "08B1") { // Code39
return s.Substring(4);
} else if (s.Substring(0,4) == "08B2") { // Interleaved 2 of 5
return s.Substring(4);
} else if (s.Substring(0,4) == "08B3") { // Code128
return s.Substring(4);
} else {
return s; // catch all
}
} else if (s.Substring(0,1) == "1") { // scale message
/**
The scale supports two primary commands:
11 is "get stable weight". This tells the scale to return
the next stable non-zero weight.
14 is "get state". This tells the scale to return its
current state.
The "scale_state" variable tracks all six known scale states.
The state is only changed if the status response is different
than the current state and this only returns a non-null string
when the state changes. The goal is to only pass a message back
to POS once per state change. The "last_weight" is tracked in
case the scale jumps directly from one stable, non-zero weight
to another without passing through another state in between.
*/
if (s.Substring(0,2) == "11") { // stable weight following weight request
GetStatus();
if (scale_state != WeighState.NonZero || last_weight != s.Substring(2)) {
scale_state = WeighState.NonZero;
last_weight = s.Substring(2);
return "S"+s;
}
} else if (s.Substring(0,3) == "140") { // scale not ready
GetStatus();
if (scale_state != WeighState.None) {
scale_state = WeighState.None;
return "S140";
}
} else if (s.Substring(0,3) == "141") { // weight not stable
GetStatus();
if (scale_state != WeighState.Motion) {
scale_state = WeighState.Motion;
return "S141";
}
} else if (s.Substring(0,3) == "142") { // weight over max
GetStatus();
if (scale_state != WeighState.Over) {
scale_state = WeighState.Over;
return "S142";
}
} else if (s.Substring(0,3) == "143") { // stable zero weight
GetStatus();
if (scale_state != WeighState.Zero) {
scale_state = WeighState.Zero;
return "S110000";
}
} else if (s.Substring(0,3) == "144") { // stable non-zero weight
GetStatus();
if (scale_state != WeighState.NonZero || last_weight != s.Substring(3)) {
scale_state = WeighState.NonZero;
last_weight = s.Substring(3);
return "S11"+s.Substring(3);
}
} else if (s.Substring(0,3) == "145") { // scale under zero weight
GetStatus();
if (scale_state != WeighState.Under) {
scale_state = WeighState.Under;
return "S145";
}
} else {
GetStatus();
return "S"+s; // catch all
}
} else { // not scanner or scale message
return s; // catch all
}
return null;
}
override public void HandleMsg(string msg)
{
if (msg == "errorBeep") {
Beeps(3);
} else if (msg == "beepTwice") {
Beeps(2);
} else if (msg == "goodBeep") {
Beeps(1);
} else if (msg == "twoPairs") {
Thread.Sleep(300);
Beeps(2);
Thread.Sleep(300);
Beeps(2);
} else if (msg == "rePoll") {
scale_state = WeighState.None;
sp.Write("S14\r");
}
}
private string ParseData(string s)
{
if (s.Substring(0,2) == "S0") { // scanner message
if (s.Substring(0,4) == "S08A" || s.Substring(0,4) == "S08F") { // UPC-A or EAN-13
return s.Substring(4);
} else if (s.Substring(0,4) == "S08E") { // UPC-E
return this.ExpandUPCE(s.Substring(4));
} else if (s.Substring(0,4) == "S08R") { // GTIN / GS1
return "GS1~"+s.Substring(3);
} else if (s.Substring(0,5) == "S08B1") { // Code39
return s.Substring(5);
} else if (s.Substring(0,5) == "S08B2") { // Interleaved 2 of 5
return s.Substring(5);
} else if (s.Substring(0,5) == "S08B3") { // Code128
return s.Substring(5);
} else {
return s; // catch all
}
} else if (s.Substring(0,2) == "S1") { // scale message
/**
Rate limiter. Two consecutive, identical messages
are probably scale state results. Take a short
pause to avoid flooding the scale with constant
state requests.
*/
if (s == last_message) {
Thread.Sleep(200);
}
/**
The scale supports two primary commands:
S11 is "get stable weight". This tells the scale to return
the next stable non-zero weight.
S14 is "get state". This tells the scale to return its
current state.
The "scale_state" variable tracks whether the scale is
currently at a stable zero weight, stable non-zero weight,
or neither (i.e., None).
Future: maybe stop using S11 entirely? Send a hard reset (S10)
in some situations?
*/
if (s.Substring(0,3) == "S11") { // stable weight following weight request
sp.Write("S14\r");
scale_state = WeighState.NonZero;
return s;
} else if (s.Substring(0,4) == "S140") { // scale not ready
scale_state = WeighState.None;
sp.Write("S14\r");
return "S140";
} else if (s.Substring(0,4) == "S141") { // weight not stable
scale_state = WeighState.None;
sp.Write("S14\r");
return "S141";
} else if (s.Substring(0,4) == "S142") { // weight over max
scale_state = WeighState.None;
sp.Write("S14\r");
return "S142";
} else if (s.Substring(0,4) == "S143") { // stable zero weight
sp.Write("S14\r");
if (scale_state != WeighState.Zero) {
scale_state = WeighState.Zero;
return "S110000";
}
} else if (s.Substring(0,4) == "S144") { // stable non-zero weight
if (scale_state != WeighState.NonZero) {
sp.Write("S11\r");
} else {
sp.Write("S14\r");
}
} else if (s.Substring(0,4) == "S145") { // scale under zero weight
scale_state = WeighState.None;
sp.Write("S14\r");
return "S145";
} else {
return s; // catch all
}
} else { // not scanner or scale message
return s; // catch all
}
return null;
}
private string ParseData(string s)
{
if (s.Substring(0, 2) == "S0") // scanner message
{
if (s.Substring(0, 4) == "S08A" || s.Substring(0, 4) == "S08F") // UPC-A or EAN-13
{
return(s.Substring(4));
}
else if (s.Substring(0, 4) == "S08E") // UPC-E
{
return(this.ExpandUPCE(s.Substring(4)));
}
else if (s.Substring(0, 4) == "S08R") // GTIN / GS1
{
return("GS1~" + s.Substring(3));
}
else if (s.Substring(0, 5) == "S08B1") // Code39
{
return(s.Substring(5));
}
else if (s.Substring(0, 5) == "S08B2") // Interleaved 2 of 5
{
return(s.Substring(5));
}
else if (s.Substring(0, 5) == "S08B3") // Code128
{
return(s.Substring(5));
}
else
{
return(s); // catch all
}
}
else if (s.Substring(0, 2) == "S1") // scale message
/**
* Rate limiter. Two consecutive, identical messages
* are probably scale state results. Take a short
* pause to avoid flooding the scale with constant
* state requests.
*/
{
if (s == last_message)
{
Thread.Sleep(200);
}
/**
* The scale supports two primary commands:
* S11 is "get stable weight". This tells the scale to return
* the next stable non-zero weight.
* S14 is "get state". This tells the scale to return its
* current state.
* The "scale_state" variable tracks whether the scale is
* currently at a stable zero weight, stable non-zero weight,
* or neither (i.e., None).
*
* Future: maybe stop using S11 entirely? Send a hard reset (S10)
* in some situations?
*/
if (s.Substring(0, 3) == "S11") // stable weight following weight request
{
sp.Write("S14\r");
scale_state = WeighState.NonZero;
return(s);
}
else if (s.Substring(0, 4) == "S140") // scale not ready
{
scale_state = WeighState.None;
sp.Write("S14\r");
return("S140");
}
else if (s.Substring(0, 4) == "S141") // weight not stable
{
scale_state = WeighState.None;
sp.Write("S14\r");
return("S141");
}
else if (s.Substring(0, 4) == "S142") // weight over max
{
scale_state = WeighState.None;
sp.Write("S14\r");
return("S142");
}
else if (s.Substring(0, 4) == "S143") // stable zero weight
{
sp.Write("S14\r");
if (scale_state != WeighState.Zero)
{
scale_state = WeighState.Zero;
return("S110000");
}
}
else if (s.Substring(0, 4) == "S144") // stable non-zero weight
{
if (scale_state != WeighState.NonZero)
{
sp.Write("S11\r");
}
else
{
sp.Write("S14\r");
}
}
else if (s.Substring(0, 4) == "S145") // scale under zero weight
{
scale_state = WeighState.None;
sp.Write("S14\r");
return("S145");
}
else
{
return(s); // catch all
}
}
else // not scanner or scale message
{
return(s); // catch all
}
return(null);
}
override public void HandleMsg(string msg)
{
if (msg == "errorBeep") {
Beeps(3);
} else if (msg == "beepTwice") {
Beeps(2);
} else if (msg == "goodBeep") {
Beeps(1);
} else if (msg == "twoPairs") {
Thread.Sleep(300);
Beeps(2);
Thread.Sleep(300);
Beeps(2);
} else if (msg == "rePoll") {
/* ignore these commands on purpose
scale_state = WeighState.None;
GetStatus();
*/
} else if (msg == "wakeup") {
scale_state = WeighState.None;
GetStatus();
} else if (msg == "reBoot") {
scale_state = WeighState.None;
lock (writeLock) {
sp.Write("S10\r");
Thread.Sleep(5000);
sp.Write("S14\r");
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SPH_Magellan_Scale"/> class.
/// </summary>
/// <param name="p">port file descriptor</param>
public SPH_Magellan_Scale(string p)
: base(p)
{
this.sp = new SerialPort();
this.sp.PortName = this.port;
this.sp.BaudRate = 9600;
this.sp.DataBits = 7;
this.sp.StopBits = StopBits.One;
this.sp.Parity = Parity.Odd;
this.sp.RtsEnable = true;
this.sp.Handshake = Handshake.None;
this.sp.ReadTimeout = 500;
this.wsp = new WrappedSerialPort(this.sp);
this.scaleState = WeighState.None;
this.lastWeight = "0000";
}
