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Characteristics of the Terminal Port
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(Original Document)
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Characteristics of the Terminal Port
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(Original Document)
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Uni-Telway Master or Slave Mode
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Character Mode
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Structure
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Physical interface
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Non-insulated RS 485
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Non-insulated RS 485
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Transmission
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Protocol
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Master/slave multidrop
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Without protocol
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Binary flow
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19200 bits/s by modifiable default of 1200 to 19200 bits/s (1 start bit; 8 data bits; even parity, odd parity or without parity; 1 bit stop).
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9600 bits/s by modifiable default of 1200 to 19200 bits/s (7 or 8 data bits; even parity, odd parity or without parity; with or without echo.
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Binary digit rate for loading of a project
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TSX P57 1••/2••/5••: 19200 bits/s.
TSX P57 3••/4••: 115 000 bits/s.
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Configuration
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Number of devices
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Eight maximum (eight addresses managed by the master). In slave mode addresses 4, 5, 6 are selected by default. In master mode the reserved addresses are:
The other addresses are available.
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A device (point to point)
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Length
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10 meters maximum
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10 meters maximum
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Utilities
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UNI-TE
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Requests in point to point with report of 128 octets maximum initiated by any connected device. There is nothing broadcast from the master.
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Character string 129 octets maximum. Messages must end with $R (carriage return).
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Other functions
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Transparency of communication with all devices in a network architecture via the master.
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-
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Safety
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A character check on each frame, acknowledgment and repeat option.
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No error indication.
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Monitoring
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Table of bus state, status of devices, error counters can be accessed on the slaves
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No flow monitoring
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