GE GFK0579B 用户手册
9
Series 90–70 Remote I/O Scanner User’s Manual – June 1992
124
Datagram Types
The table below shows the types of device that can send each datagram, and the
resulting action taken by the Remote I/O Scanner.
resulting action taken by the Remote I/O Scanner.
Datagram Type
Subfunction
Code
Sent
From
Remote I/O Scanner
Action
Read Identification
00
BC, HHM
send Read ID Reply
Read Configuration
02
BC, HHM
send Read Configuration Reply
Write Configuration
04
BC, HHM
process (possibly send configura-
tion changes)
tion changes)
Assign Monitor
05
BC
process
Begin Packet Sequence
06
BC, HHM
start sequence
End Packet Sequence
07
BC, HHM
end/check sequence
Read Diagnostics
08
BC, HHM
send Read Diagnostics Reply
Read Block I/O
0C
BC, HHM
send Read Block I/O Reply
Pulse Test
10
HHM
send Pulse Test Complete
Clear All Faults
13
BC, HHM
process
Switch BSM
1C
BC. HHM
process
Read Device
1E
BC, HHM
send Read Device Reply
Write Device
20
BC HHM
process
Read Point Diagnostics
25
BC, HHM
send Read Point Diagnostics
Reply
Reply
Read Map
2A
BC, HHM
send Read Map Reply
Write Map
2C
BC, HHM
process–autoconfigure
A PLC or computer can send a datagram to the Remote I/O Scanner in the same
manner as sending a datagram to an I/O block or Bus Controller.
manner as sending a datagram to an I/O block or Bus Controller.