KEYENCE CV-X User Manual

358GB

High-speed, High-capacity Machine Vision System

CV-X Series

Easy Setup Guide

Control/Communication PLC-Link

(MELSEC FX Series)

Contents

Easy Setup Guide: Control/Communication PLC-Link (MELSEC FX Series)

1. Establishing the PLC-Link (RS-232C PLC-Link)	Page 3
2. Outputting the Measured Value/Judged Value (PLC-Link)	Page 6
3. Controlling the Controller (PLC-Link)	Page 9

Trademarks

Product names, etc. noted in this document are registered trademarks or trademarks of their respective companies. The ™ mark and ® mark have been omitted in this manual.

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1. Establishing the PLC-Link (RS-232C PLC-Link) [MELSEC FX Series]

Checking the Global Settings of the CV-X Series

This section describes how to establish the PLC Link.

[Important] If it fails, follow this manual to configure the settings and check the operations. Confirm that it operates properly, and change settings if necessary.

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On the "Global" menu, select [Communications & I/O] > [PLC-Link].

Select "OK" to close the "PLC-Link" setting screen and then restart the controller.

Configure the PLC Link settings.

Mode: PLCLink (RS232C)

PLC Type: MELSEC FX Series Baud Rate: 19200

Stop Bit: 1 Parity Bit: Even

Flow Control: CTS/RTS Data Length: 8- bit (fixed)

* The above is a setting example. Change the settings according to the target device.

Decimal Point: Fixedpoint

Command Execute Event: Polling Command Complete Address (bit): 00003 Command Address: 00100

Command Result Address: 00200 Result Output Address: 00500 Result Ready Address (bit): 00000 Result Ack Address (bit): 00001

Acknowledge result output completion: Checked

Enable Handshake: Unchecked

[Note] The memory range that can be used varies according to the target device. Furthermore, frequently accessing a memory with EEPROM (non-volatile memory) assigned may lead to delays, and a shorter device lifespan.

Ensure that you have thoroughly checked the memory range of the device to be connected before using it.

358GB

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Communication rate setting: 19200 bps Data Bit: 8 bit

Parity Bit: Exist Even/odd parity: Even Stop bit:1

Sum check code:Exist

* Always set "Sum check code" to "Exist".

The CH number is CH1 if there is one serial communication unit. If there are several serial communication units, they are assigned CH numbers in ascending order, starting with the unit closest to the CPU unit (the closest unit is CH1, the next unit is CH2, etc.).

For more information, refer to the Mitsubishi Electric Corporation computer link unit user's manual.

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Use the same values as those set for the CV X Series Global Settings.

Configuring the FX Series Settings

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Start GX Developer, and select [Project] > [New project].

Select "FXCPU" for "Series" and a model*2 to use for "Type", and then press the "OK" button. *1 Programmable Controller *2 Select a model described in the CV-X user's manual.

Select "PLC Parameter" from the project data list, and change the parameters according to the CV-X Series Global Settings.

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4 Select [Online] > [Write to PLC], and press "Execute" to connect to PLC.

5 Restart both the CV-X Series and the MELSEC FX Series.

* Start the MELSEC FX Series first, and then start the CV X Series.

If "Initializing PLCLink..." appears on the lower left of the screen and disappears immediately, it indicates that the link has been established successfully.

If the link establishment has failed, the message "Initializing PLCLink...

*" appears repeatedly, and the error message "Failed to establish a link with the PLC" appears.

Check the settings of the CV X Series and MELSEC FX Series again.

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