Keyence Visual KV Series Manual de usuario descargar pdf (Pagina 335)

100

101

7.2 Serial Communication

3-311

Chapter 7 Serial Communication

7.2.4 Setting Communication Commands and Responses to

Commands

This section describes the command settings and responses when a command is

properly processed.

"_" represents a space.

Refer to "7.2.5 Other Response Codes" (p. 3-315) for responses under abnormal

conditions.

■ Communications start command

Transmit a communications start command to start communication with the KV.

Other commands can be transmitted after the proper response is sent back from the

KV.

Note: Other commands cannot be used unless a [CR] (communications start)

command is transmitted first.

Starts communications between the KV and a personal computer.

Command: CR

Response: CC

■ Communications end command

Ends communications between the KV and a personal computer.

Command: CQ

Response: CF

■ Mode change command

Selects the mode between PROGRAM and RUN.

Command: Mn [n=0; PROGRAM mode, n=1; RUN mode]

Response: OK

■ Error clear command

Clears error messages on KV.

Command: ER

Response: OK

■ Checking KV PLC error

Checks errors or faults in the KV. The description of the error is indicated with the

error code.

➮

"7.2.6 Error Code List" (p. 3-316).

Command: ?E

Response: dd

Error code (2- or 3-digit number)

■ Checking current mode

The KV responds with 0 or 1 indicating a current mode.

Command: ?M

Response: f

0: PROGRAM mode 1: RUN mode

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