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RS232,TTY,RS485 750-650,651,653
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FUNCTION
Description of RS 485:
The interface module is designed to operate with all WAGO I/O fieldbus couplers. The
serial interface module allows the connection of RS485 or RS488-Interface devices to
the WAGO I/O SYSTEM. The RS485/RS488 Interface module can provide gateways
within the fieldbus protocol. This allows serial equipment such as printers, barcode
readers, and links to local operator interfaces to communicate directly by the fieldbus
protocol with the PLC or PC Master.
This module supports no higher level of protocol. Communication is made completely
transparent to the fieldbus allowing flexibility in further applications of the serial
interface module. The communication protocols are configured at the Master PLC or
PC.
The 128 byte input buffer provides for high rates of data transmission. When using
lower rates of transmission speed you can collect the received data, with less priority,
without loosing data.
The 16 byte output buffer provides for faster transmission of larger data strings.
The data transmission takes place at 9,600 baud (default value). 1 startbit, 8 databits and 1
stopbit will be transmitted. No parity is available. The drivers are high ohmic. The control
of data is made by the user software.
The interface module can be used for bus connections as well as for point to point
connections. With bus connections, modules that are not connected to the power supply can
also be wired. They do not disturb the bus connection.
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TxD
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RxD
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RxD
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TxD
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TxD
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RxD
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RxD
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TxD
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