α2 Simple Application Controllers |
AL-VLS/WIN-E Settings for Dedicated Protocol 6 |
6.3Settings for Dedicated Protocol - Front Panel Keys
The α2 Controller must be set up to use the Dedicated Protocol. The settings can be performed from the front panel keys or downloaded from the VLS software. The VLS settings are the simplest and most convenient method to enter the required settings but they can also take place from the front panel.
After the settings are changed in the controller, the power MUST be cycled for the Dedicated Protocol settings to take effect.
6.3.1Top Menu Setting/Serial Com Settings
In the α2 Controller Top Menu, please scroll to the “Others/Serial Com” option shown at right. To use Dedicated Protocol, the “Other Com” setting must be chosen.
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6.3.2The “Other Com” Settings
Parameters for ComFormat, Station No., and Link Block can be set in this option. These settings provide the complete range of options available to set with the front panel keys.
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6.3.3The Comformat (Communication Format)
The ComFormat dialog will allow the user to set the communication settings for Datalength, Parity, Stop Bit, Baudrate and includes a setting for default values.
Scroll to the setting to be input or changed.
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6.3.4 Data Length
Change the Data Length send parameter to be 7 bits or 8 bits.
Choose 8bits for Dedicated Protocol communication.
6.3.5 Parity
Select from three settings for Parity - None, Odd or Even.
Choose None for Dedicated Protocol communication.
6.3.6 Stop Bits
Choose the number of stop bits - 1 bit or 2 bits.
Choose 1 bit for Dedicated Protocol communication.
6.3.7 Baud Rate
Choose the baudrate from 300, 600, 1200, 2400, 4800, 9600, 19200bps
Choose 9600bps for Dedicated Protocol communication.
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α2 Simple Application Controllers |
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AL-VLS/WIN-E Settings for Dedicated Protocol 6 |
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6.3.8 |
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The default values are DataLength = 8 bits; Parity = None; Stop Bit = 1 bit; and |
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Baud Rate = 9600 bps. |
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6.3.9 |
Station Number |
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Set the Station Number of the controller from 0 to 15. The default |
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station is 0. |
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Communication is possible to a single α2 Controller when sending |
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messages via RS-232. A networked PLC might have a station number |
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higher than 0. |
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6.3.10 |
Link Block |
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The Link Block setting specifies the amount of Function Block data that |
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can be used in the Dedicated Protocol. The data for the three options is |
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given in the table below. |
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Table 6.3: Link Block Settings |
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Communication |
Communication |
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Word Devices |
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Note
The user must not change the memory allocation for Communication BIT/WORD device during the computer link operation, otherwise, the settings created in the VLS software will be deleted.
6.3.11Function Block Bit and Word Data
The Function Block data must be given addresses in memory for the Dedicated Protocol command string. The addresses can only be set in the VLS software.
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