Keyence Visual KV Series Uživatelský manuál stáhnout pdf (Strana 333)

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7.2 Serial Communication

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Chapter 7 Serial Communication

■ Command/response format

"Command" and "response" in communications between the KV and a personal

computer are defined as follows:

Command: Message transmitted from personal computer to KV

Response: Answer to the command (message from KV to personal computer)

When a personal computer transmits a command to the KV Series basic unit, the KV

sends back a response to the personal computer.

When creating a program to control the KV using a personal computer, create it so

that the response is checked before the next command is transmitted.

7.2.2 Format of Commands/Responses

The formats of commands and responses are as follows:

Command format

Use the following format to transmit commands from the personal computer to the

KV. [CR] is a delimiter. The KV ignores [LF] and recognizes the next character after

[LF] as the next command.

Response format

The KV sends back a response to the received command in the following format.

When creating a program using a personal computer, create it so that the personal

computer can process the response in this format.

Command

Response

Command

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