Accessing Command Interface; Using Bfm - Pepperl+Fuchs CC-LINK Series Compact Manual

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CC-Link Gateways

Accessing command interface

7.1

This example describes one method of accessing a command interface when it is

mapped into the cyclic buffer memory area (when using VBG-CCL-G4F Mode, or

CC-Link V1 Mode)

BFM used for I/O data

(RY4 = 0)

Disable BFM

(set RY5 = 1)

Wait for BFM disable

acknowledge (RX5 = 1)

Switch to mailbox mode

(set RY4 = 1)

Wait for mailbox mode

acknowledge (RX4 = 1)

Write command interface request data

(including command and changed

toggle bit) to RWw area

Enable BFM

(set RY5 = 0)

Wait for BFM enable

acknowledge (RX5 = 0)

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