Mitsubishi Electric MELSEC iQ-R Series User Manual page 183

No. Current state
(8) WAIT DELAY
(Awaiting delay timer
timeout)
(9) WAIT CRA
(Awaiting
communication
establishment request
confirmation)
(10) (Enter host initiated
connect)
(11) WAIT CR FROM HOST
(Awaiting
communication
establishment from the
host)
(12) COMMUNICATING
(Communication in
progress)
*1 Communication loss, response timeout, etc.
*2 Messages to be transmitted from the queue are spooled in the order of creation.
Trigger New state
A message other than WAIT CRA
S1F13 is received (Awaiting communication
establishment request
confirmation)
S1F14 with COMMACK COMMUNICATING
= 0 is received as (Communication in progress)
expected
(Entered WAIT CR FROM HOST
NOTCOMMUNICATING (Awaiting communication
state) establishment)
S1F13 is received COMMUNICATING
(Communication in progress)
Communication loss NOT COMMUNICATING
(Communication interrupted)
Operation Comments
Message is discarded (no It means that there is a
response) possibility of communication
Communication delay timer is establishment
set for timeout
S1F13 is sent
Disabled Communication shall be
established
Disabled S1F13 is awaited from the
host
S1F14 is sent with Communication is
COMMACK=0 established.
All messages awaiting Messages removed from the
transmission are removed queue are spooled if
from the queue necessary
8 GEM COMPLIANT FUNCTIONS
8.4 Communication State Model Management
8
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