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Updated Home (markdown)

FalcoGoodbody
2020-09-09 21:43:01 +02:00
parent e08bc2ae59
commit 70770a199c
1 changed files with 22 additions and 22 deletions
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44
Home.md

@@ -21,7 +21,7 @@ To create an instance of the driver you need to use this constructor:
```csharp
public Plc(CpuType cpu, string ip, Int16 rack, Int16 slot)
```
* Cpu: this specify what CPU you are connecting to. The supported CPU are:
* **cpu**: this specify what CPU you are connecting to. The supported CPU are:
```csharp
public enum CpuType {
S7200 = 0,
@@ -31,9 +31,9 @@ public enum CpuType {
S71500 = 40,
}
```
* Ip: specify the IP address of the CPU or of the external Ethernet card
* Rack: this contains the rack of the plc, that you can find in hardware configuration in Step7
* Slot: this is the slot of the CPU, that you can find in hardware configuration in Step7
* **ip**: specify the IP address of the CPU or of the external Ethernet card
* **rack**: this contains the rack of the plc, that you can find in hardware configuration in Step7
* **slot**: this is the slot of the CPU, that you can find in hardware configuration in Step7
Example:
@@ -109,7 +109,7 @@ public void WriteBytes(DataType dataType, int db, int startByteAdr, byte[] value
```
This reads all the bytes you specify from a given memory location. This method handles multiple requests automatically in case the number of bytes exceeds the maximum bytes that can be transferred in a single request.
* dataType: you have to specify the memory location with the enum DataType
* **dataType**: you have to specify the memory location with the enum DataType
```csharp
public enum DataType
{
@@ -121,10 +121,10 @@ public enum DataType
Counter = 28
}
```
* db: the address of the dataType, for example if you want to read DB1, this field is “1”; if you want to read T45, this field is 45.
* startByteAdr: the address of the first byte that you want to read, for example if you want to read DB1.DBW200, this is 200.
* count: contains how many bytes you want to read.
* Value[]: array of bytes to be written to the plc.
* **db**: the address of the dataType, for example if you want to read DB1, this field is “1”; if you want to read T45, this field is 45.
* **startByteAdr**: the address of the first byte that you want to read, for example if you want to read DB1.DBW200, this is 200.
* **count**: contains how many bytes you want to read.
* **value[ ]**: array of bytes to be written to the plc.
Example:
This method reads the first 200 bytes of DB1:
@@ -140,7 +140,7 @@ public object Read(DataType dataType, int db, int startByteAdr, VarType varType,
public void Write(DataType dataType, int db, int startByteAdr, object value)
```
* dataType: you have to specify the memory location with the enum DataType
* **dataType**: you have to specify the memory location with the enum DataType
```csharp
public enum DataType
{
@@ -152,9 +152,9 @@ public enum DataType
Counter = 28
}
```
* db: the address of the dataType, for example if you want to read DB1, this field is “1”; if you want to read T45, this field is 45.
* startByteAdr: the address of the first byte that you want to read, for example if you want to read DB1.DBW200, this is 200.
* varType: specify the data that you want to get your bytes converted.
* **db**: the address of the dataType, for example if you want to read DB1, this field is “1”; if you want to read T45, this field is 45.
* **startByteAdr**: the address of the first byte that you want to read, for example if you want to read DB1.DBW200, this is 200.
* **varType**: specify the data that you want to get your bytes converted.
```csharp
public enum VarType
{
@@ -171,8 +171,8 @@ public enum VarType
Counter
}
```
* count: contains how many variables you want to read.
* Value: array of values to be written to the plc. It can be a single value or an array, just remember that the type is unique (for example array of double, array of int, array of shorts, etc..)
* **count**: contains how many variables you want to read.
* **value**: array of values to be written to the plc. It can be a single value or an array, just remember that the type is unique (for example array of double, array of int, array of shorts, etc..)
Example:
This method reads the first 20 DWords of DB1:
@@ -189,7 +189,7 @@ public object Read(string variable)
public void Write(string variable, object value)
```
* variable: specify the variable to read by using strings like “DB1.DBW20”, “T45”, “C21”, “DB1.DBD400”, etc.
* **variable**: specify the variable to read by using strings like “DB1.DBW20”, “T45”, “C21”, “DB1.DBD400”, etc.
Example:
This reads the variable DB1.DBW0. The result must be cast to ushort to get the correct 16-bit format in C#.
@@ -205,9 +205,9 @@ public object ReadStruct(Type structType, int db, int startByteAdr = 0)
public void WriteStruct(object structValue, int db, int startByteAdr = 0)
```
* structType: Type of the struct to be read, for example: typeOf(MyStruct))
* db: index of the DB to read
* startByteAdr: specified the first address of the byte to read (the default is zero).
* **structType**: Type of the struct to be read, for example: typeOf(MyStruct))
* **db**: index of the DB to read
* **startByteAdr**: specified the first address of the byte to read (the default is zero).
Example:
Define a DataBlock in the plc like:
@@ -248,9 +248,9 @@ public void ReadClass(object sourceClass, int db, int startByteAdr = 0)
public void WriteClass(object classValue, int db, int startByteAdr = 0)
```
* sourceClass: instance of the class that you want to assign the values
* db: index of the DB to read
* startByteAdr: specified the first address of the byte to read (the default is zero).
* **sourceClass**: instance of the class that you want to assign the values
* **db**: index of the DB to read
* **startByteAdr**: specified the first address of the byte to read (the default is zero).
Example:
Define a DataBlock in the plc like: