IDEC FC6A-C16K1CE User Manual

8: J1939 C OMMUNICATION
8-6 FC6A S ERIES M ICRO S MART A LL - IN -O NE T YPE C OMMUNICATION M ANUAL FC9Y-B1730
Communication Control Status Transitions
J1939 communication status and initialization processing transitions are as follows.
(1)
The offline status is set immediately after starting execution of the user program.
(2)
When M8300 is turned on, the online status is set and initialization processing is performed.
Before acquiring the local address in initialization processing, the address is the address unconfirmed status (M8302=off).
(3)
When a local address is confirmed between 0 and 253, the status is the address confirmed status (M8302=on).
Messages can be exchanged between the MicroSmart and CAs. If the local address is 254, the status remains the address
unconfirmed status.
(4)
When an address conflict occurs and the local address is 254 (null address), the status is the address unconfirmed status.
(5)
When M8300 is turned off, communication processing is stopped and the offline status is set.
The offline status is also set when bus off occurs during communication (M8304 is turned on). M8300 remains off at this time.
To set the online status again, turn off M8300 and then turn it on again.
Address unconfirmed
(M8302=off)
Address confirmed
(M8302=on)
(1) Start user program execution
(4)
Address conflict
(2) J1939 communication
permitted
(M8300 is turned on)
(5) J1939 communication
prohibited (M8300 is off)
or
bus off (M8304 is on)
(3)
Address confirmed
While online
(M8301=on)
While offline
(M8301=off)

IDEC FC6A-C16K1CE Specifications

General

Brand	IDEC
Model	FC6A-C16K1CE
Category	Control Unit
Language	English