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List of all functions/instructions available i R3 programming language for managing RS232/RS422/RS485 serial channels.

Legend: R = permitted use in Rules - T = permitted use in Tasks - I = Instruction - F = Function (thus has a return value)

Keyword

R

T

F/I

Description

ser_485_tx_sts()

R

T

F

Function that returns the status of the last transmission made on the specified device

ser_bcc_h_init()

R

T

F

Initializes the serial port for BCC3 communication between controls

ser_bin_in()

R

T

F

Function that allows a specified number of characters to be read from the specified device

ser_bin_out()

R

T

F

Sends characters on the serial channel

ser_bin_ready()

R

T

F

Reports whether there are characters on the serial channel

ser_buff_free()

R

T

F

Number of free bytes on the TX buffer

ser_buff_queue()

R

T

F

Number of occupied bytes on the TX buffer

ser_con()

R

T

I

Sets the parameters of the serial channel

ser_flush()

R

T

F

Cleans all data in the TX and RX buffers of the specified serial channel

ser_in()

R

T

F

Receives the terminated string from serial channel

ser_mod()

R

T

F

Sets the working mode of the specified serial channel

ser_out()

R

T

F

Sends the terminated string to the serial channel

ser_r_sts()

R

T

F

Reads the status word from the serial channel

ser_ready()

R

T

F

Reports the presence of a terminated string on the serial channel

ser_w_sts()

R

T

I

Sets the status word of the serial channel

 

  

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