go fmt ./...
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079cd7efc9
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2 changed files with 122 additions and 87 deletions
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@ -31,10 +31,13 @@ func NewClient2(packager Packager, transporter Transporter) Client {
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}
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// Request:
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//
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// Function code : 1 byte (0x01)
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// Starting address : 2 bytes
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// Quantity of coils : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x01)
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// Byte count : 1 byte
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// Coil status : N* bytes (=N or N+1)
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@ -62,10 +65,13 @@ func (mb *client) ReadCoils(address, quantity uint16) (results []byte, err error
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}
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// Request:
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//
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// Function code : 1 byte (0x02)
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// Starting address : 2 bytes
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// Quantity of inputs : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x02)
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// Byte count : 1 byte
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// Input status : N* bytes (=N or N+1)
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@ -93,10 +99,13 @@ func (mb *client) ReadDiscreteInputs(address, quantity uint16) (results []byte,
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}
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// Request:
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//
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// Function code : 1 byte (0x03)
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// Starting address : 2 bytes
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// Quantity of registers : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x03)
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// Byte count : 1 byte
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// Register value : Nx2 bytes
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@ -124,10 +133,13 @@ func (mb *client) ReadHoldingRegisters(address, quantity uint16) (results []byte
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}
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// Request:
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//
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// Function code : 1 byte (0x04)
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// Starting address : 2 bytes
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// Quantity of registers : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x04)
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// Byte count : 1 byte
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// Input registers : N bytes
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@ -155,10 +167,13 @@ func (mb *client) ReadInputRegisters(address, quantity uint16) (results []byte,
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}
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// Request:
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//
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// Function code : 1 byte (0x05)
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// Output address : 2 bytes
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// Output value : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x05)
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// Output address : 2 bytes
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// Output value : 2 bytes
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@ -196,10 +211,13 @@ func (mb *client) WriteSingleCoil(address, value uint16) (results []byte, err er
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}
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// Request:
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//
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// Function code : 1 byte (0x06)
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// Register address : 2 bytes
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// Register value : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x06)
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// Register address : 2 bytes
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// Register value : 2 bytes
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@ -232,12 +250,15 @@ func (mb *client) WriteSingleRegister(address, value uint16) (results []byte, er
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}
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// Request:
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//
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// Function code : 1 byte (0x0F)
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// Starting address : 2 bytes
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// Quantity of outputs : 2 bytes
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// Byte count : 1 byte
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// Outputs value : N* bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x0F)
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// Starting address : 2 bytes
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// Quantity of outputs : 2 bytes
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@ -274,12 +295,15 @@ func (mb *client) WriteMultipleCoils(address, quantity uint16, value []byte) (re
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}
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// Request:
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//
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// Function code : 1 byte (0x10)
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// Starting address : 2 bytes
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// Quantity of outputs : 2 bytes
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// Byte count : 1 byte
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// Registers value : N* bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x10)
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// Starting address : 2 bytes
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// Quantity of registers : 2 bytes
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@ -316,11 +340,14 @@ func (mb *client) WriteMultipleRegisters(address, quantity uint16, value []byte)
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}
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// Request:
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//
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// Function code : 1 byte (0x16)
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// Reference address : 2 bytes
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// AND-mask : 2 bytes
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// OR-mask : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x16)
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// Reference address : 2 bytes
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// AND-mask : 2 bytes
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@ -359,6 +386,7 @@ func (mb *client) MaskWriteRegister(address, andMask, orMask uint16) (results []
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}
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// Request:
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//
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// Function code : 1 byte (0x17)
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// Read starting address : 2 bytes
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// Quantity to read : 2 bytes
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@ -366,7 +394,9 @@ func (mb *client) MaskWriteRegister(address, andMask, orMask uint16) (results []
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// Quantity to write : 2 bytes
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// Write byte count : 1 byte
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// Write registers value : N* bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x17)
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// Byte count : 1 byte
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// Read registers value : Nx2 bytes
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@ -397,9 +427,12 @@ func (mb *client) ReadWriteMultipleRegisters(readAddress, readQuantity, writeAdd
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}
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// Request:
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//
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// Function code : 1 byte (0x18)
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// FIFO pointer address : 2 bytes
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//
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// Response:
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//
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// Function code : 1 byte (0x18)
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// Byte count : 2 bytes
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// FIFO count : 2 bytes
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@ -67,6 +67,7 @@ type tcpPackager struct {
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}
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// Encode adds modbus application protocol header:
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//
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// Transaction identifier: 2 bytes
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// Protocol identifier: 2 bytes
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// Length: 2 bytes
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@ -118,6 +119,7 @@ func (mb *tcpPackager) Verify(aduRequest []byte, aduResponse []byte) (err error)
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}
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// Decode extracts PDU from TCP frame:
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//
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// Transaction identifier: 2 bytes
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// Protocol identifier: 2 bytes
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// Length: 2 bytes
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