Protocol Parameters
- Last UpdatedJul 19, 2023
- 1 minute read
The Citect.ini file contains the following protocol parameters:
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[<ProtocolName>]Block - The blocking constant is a trade-off between the time taken to make multiple data requests and the time taken to read more data in a single request.
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[<ProtocolName>]Delay - The period (in milliseconds) to wait between receiving a response and sending the next command.
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[<ProtocolName>]MaxPending - The maximum number of pending commands that the driver holds ready for immediate execution.
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[<ProtocolName>]PollTime - The interrupt or polling service time (in milliseconds). Setting the polling time to 0 puts the driver in interrupt mode.
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[<ProtocolName>]Retry - The number of times to retry a command after a timeout.
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[<ProtocolName>]Timeout - Specifies how many milliseconds to wait for a response before displaying an error message.
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[<ProtocolName>]WatchTime - The frequency (in seconds) that the driver uses to check the communications link to the I/O device.
Note: The default and allowable values of these parameters are specific to the protocol. To access information about the parameters for a particular driver, see the Driver Reference Help.