ABB CI930F 3BDH001010R0005 Communication interface module
Brand ABB Color Standard Application Industrial height 418mm rated current 280mA
Protection Level IP45 Suitable for motor power 219KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part Number CI930F 3BDH001010R0005
Applicable pipe 2 Whether imported is weighing 2.16 kg can be sold nationwide
ABB CI930F 3BDH001010R0005 Communication interface module
CI930F 3BDH001010R0005 Resynchronizes the character stream
A stop bit sent at the end of each character allows the hardware receiving the signal to detect the end of the character and resynchronize with the character stream. Electronic devices usually use a stop bit. If a slow electromechanical teletype may require one and a half or two stop bits.
Data/Parity/Stop (D/P/S) Traditional symbols specify serial connection framing. The most common usage on microcomputers is 8/N/1 (8N1). This specifies 8 data bits, no parity, and 1 stop bit. In this representation, the parity bits are not included in the data bits. 7/E/1 (7E1) means that an even parity bit is added to the 7 data bits of a total of 8 bits between the start and stop bits.
Flow control is used in situations where the sender may be able to send data faster than the receiver can process it. To solve this problem, serial lines usually include a handshake method. There are hardware and software handshakes.
The hardware handshake is done with an additional signal, usually an RS-232 RTS/CTS or DTR/DSR signal circuit. RTS and CTS are used to control the flow of data, for example, to signal when the buffer is nearly full. According to the RS-232 standard and its successors, DTR and DSR are used to indicate that a device is present and powered, so it is usually always asserted. However, non-standard implementations exist, for example, using DTR as a printer for flow control.
ABB CI930F 3BDH001010R0005 Communication interface module
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