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The protocol allows reading and writing data into the Advantech ADAM series 4000 devices.
Types of useable usable I/O tags according to ADAM type are listed in the following table:
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- Communication line category: Serial, SerialOverUDP Device Redundant.
- Transfer parameters (Baud rate, number of stop bits, speed, number of bits, and parity bitesbits) according to the setting of ADAM modules.
- Other parameters see the Communication line - configuration dialog box.
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- Communication protocol: Advantech ADAM Series 4000
- Station address – Module Address - ADAM module address , decimal number in range of 0 up-to 255 (according to the setting of modules in configuration), a number in the range of 0 to 255 specified either as a decimal number or a hexadecimal number with a hash at the beginning (e.g. #1A).
- Time parameters – polling parameters – for optimal and quick communication - Delay 0 seconds (all stations).
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Configuration dialog box - tab „Parameters".
They influence some optional parameters of the protocol.
Table 2
| Full name | Meaning | Unit | Default value | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Retry A retry count of the request in case of a communication failure. | - | 2 | ||||||
| Delay The delay between request retry in case of a communication failure. | ms | 300 milliseconds | ||||||
| Delay The delay after sending the request before reading the response. | ms | 200 milliseconds | ||||||
| Delay The delay between response readings till its completing. | ms | 200 milliseconds | ||||||
| Retry count of response reading till its completing. | - | 8 | ||||||
| Using the checksum. Set according to the setting of module ADAM in the configuration. | YES/NO | YES |
For further information on the protocol parameters, see the topic Communication line - configuration dialog box.
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- Channel - number of ADAM module channel, decimal a number in the range of 0 - 15 (for ADAM module with one channel, use Channel = 0), specified either as a decimal number or a hexadecimal number with a hash at the beginning (e.g. #A).
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Reading and writing of analog inputs and outputs are supported for the “Engineering units” data format.
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