Yaskawa MP920 Communications Module - Manual (Page 200)

8.1 Connection to a Display Device
8-9
8
8.1.5 MSG-RCV Function
The following diagram shows a MEMOBUS Slave MSG-RCV ladder logic program for the
MP920 and CP-217.
SB000004
Command
Stop
DB000210
Executing
Normal completion
Abnormal completion
DB000211
DB000212
MSG-RCV
EXECUTE BUSY
ABORT COMPLETE
DEV-TYP ERROR
PRO-TYP
CIR-NO
CH-NO
RECV PARAM
DA00000
00005
00001
00003
00001
SB000004
DB000211
Normal completion
Abnormal completion
DB000212
IFON
IEND
DEND
INC DW00024
INC DW00025
SB000003
One scan at startup
IFON
00000
00000
00000
00000
00000
00000
DW00025
→
→
→
→
→
→
→
→
→ DW00008
DW00009
DW00010
DW00011
DW00012
DW00013
DW00014
DW00024
Coil offset setting
Input relay offset setting
Input register offset setting
Holding register offset setting
Write range: LO
Write range: HI
System register clear
Normal pulse counter clear
Error counter clear
At startup, set the parameters in the
first scan.
DW00000
DW00001
DW00002
DW00004
DW00005
DW00006
DW00007
IEND
32767
Low-speed scan (DWG L): SB000003
High-speed scan (DWG H): SB000001
DW00002 is not set with the CP-217.
The circuit number
changes according to the
system configuration.
Normal counter
Error counter
Issue a Receive Message
instruction.
The executing coil turns ON when
the CPU receives the command.
The normal completion or abnormal completion
coil turns ON at processing completion.
General-purpose message communications
Circuit No. 3 (depending on the connection port)
Channel No. 1
(With the 217IF Module, the channel number is fixed at 1.)
Turns ON at receive completion of a query message and at
send completion of a response message.
Normal pulse counter added
Ended by a transmission error
Error pulse counter added
→
→
→
→
→
→
→ DW00026
DW00027
DW00028
DW00029
DW00030
DW00031
DW00032
Processing result stored
Status stored
Command receive destination ST# stored
FC stored
Data address stored
Deta size stored
Remote CP# stored