Yamaha SRCD Uživatelský manuál stáhnout pdf (Strana 34)

CHAPTER2 CC-Link Unit

2-7-10 Initial data processing request flag

This is an output for performing the handshake to start communication between the

controller and the master station sequencer (PLC).

During controller start-up, or when communication with the master station was not per-

formed because an error occurs on the CC-Link system, the controller sets this output to

ON. When this output turns ON, set the initial data end flag to ON from the sequencer

(PLC).

Doing this makes the controller set this output to OFF, so you should then set the “initial

data processing end flag” to OFF on the sequencer (PLC).

Refer to “2-6-1 Starting data exchange with the controller” for more detailed informa-

tion.

2-7-11 Remote READY

This output turns ON when normal communication exchange between the controller and

the master station sequencer (PLC) can be performed.

This output turns OFF in the following cases. In such cases the controller sets to emer-

gency stop and auto operation is impossible.

• Controller power cannot turn on

•Alarm occurs on controller

•Alarm was issued on CC-Link system and communication with the master station

is impossible.

•Handshake for starting communication between the controller and master station

sequencer (PLC) cannot be performed.

Refer to, “2-6-1Starting data exchange with the controller” for information involving

handshake for communication start-up.

2-7-12 Error flag

This output turns ON when an alarm occurred on the controller.

If this output turns ON, refer to “Alarm and Countermeasures” in the controller instruc-

tion manual for information on eliminating the problem.

To restore operation, first eliminate the cause of the alarm, and then turn the controller

power off and then back on again.

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Yamaha SRCD Uživatelský manuál Strana 34