258
C200H I/O Link Units
Section 6-1
Note
When transmitting explicit messages from an OMRON Master Unit, specify 2
bytes each for the Class ID and the Instance ID.
Response
When data is read properly, the response will be stored as shown in the fol-
lowing table.
Instance ID: DM Area (03 Hex)
First read address: 03E8 Hex (word 1000)
Number of bytes read: 20 bytes (10 words)
When IR 00000 turns ON, IR 00001 will turn ON
for one cycle (as a differentiated bit).
When differentiated bit IR 00001 turns ON, the sequen-
tial processing control bit IR 03000 will turn ON.
When IR 03000 turns ON, the CPU Unit will check that
IR 10112 (Unit number 0 Master's Message Commu-
nications Execution Enabled Flag) is ON, and message
transmission will start.
00FE: Master's node address 00, Master's unit address
FE Hex
DM 0000: Command data storage words
0010 Hex: Master's unit number 00, 10 command data
words (BCD)
If the Equals Flag is ON (writing to the Master has been
completed normally), IR 03000 will be cleared (message
transmission completed).
If the Equals Flag is OFF (error in writing to the Master),
IR 03000 will be turned ON, and the data will be trans-
mitted again.
MOV (21)
#002F
DM0006
MOV (21)
#0003
DM0007
MOV (21)
#E803
DM0008
MOV (21)
#1400
DM0009
DIFU (13)
00001
MOV (21)
#0001
030
IOWR
#00FE
DM0000
#0010
MOV (21)
#0000
030
MOV (21)
#0001
030
03000
10112
25506
END (01)
25506
00001
00000
Class ID: 2F Hex
Words
Contents (Hex)
Meaning
DM 0100
28 01
EXPLICIT MESSAGE SEND command
code is 28 01 Hex.
DM 0101
00 00
Response code is 0000 Hex (normal
completion).
DM 0102
00 16
Number of bytes received (data length
from word DM 0103 onwards) is 22 bytes.
DM 0103
07 9C
Slave node address is 07.
BYTE DATA READ response service
code is 9C Hex.
DM 0104
xx xx
Data read from word DM 1000 of Slave.
to
to
---
DM 0113
xx xx
Data read from word DM 1009 of Slave.
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Содержание CS1W-DRM21
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