Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 383 / 478

R-49
A Standard System Protocol
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
R-3 Mitsubi
s
h
i Co
mputer
Link
Ma
ster
(A-c
o
m
pati
b
le
1C
Fra
m
e
, Model
1)
Re
f
R
-3-5
Str
ucture of
the Protocol
This sequence reads the word (PV) data for the number of device points starting from the specified
device address for the specified device type (T, C) in the Mitsubishi Computer Link Module with the
specified station number (and the PLC number that follows), converts the data into hexadecimal, and
stores it starting from the specified word + 2 in the CS/CJ-series CPU Unit.
Send Data Word Allocation (3rd Operand of PMCR(260))
Receive Data Word Allocation (4th Operand of PMCR(260))
Device Memory Batch Read as Word Data (T/C Device Type)
(Sequence No. 803 (Hex 0323)) (Command Code: WR)
Offset Contents (data format) Data
+0 Number of send data words (4 digits hex) Always 0005 hex (5 decimal)
+1 Station No.
(2 digits hex) PLC No.
(2 digits hex) Station No.: 00 to FF hex
PLC No.: 00 to FF hex
+2 Device type (4 digits hex) Set the device type (2 characters) in ASCII.
+3 (Undefined) Device No.
(3 digits hex)
Set the first read address of the device to read.
+4 (Undefined) Device points
(2 digits hex)
Set the device points to read.
Offset Contents (data format) Data
+0 Number of receive data words 0003 to 00FA hex (2 to 250 decimal)
+1 Station No.
(2 digits hex) PLC No.
(2 digits hex) Station No.: 00 to FF hex
PLC No.: 00 to FF hex
+2
on Read data (4 digits hex) Stores the number read data converted into hexa-
decimal.
+0
+1
+2
+3
+4
(Undefined)
Number of send data words
PLC No. Station No.
Device type
(Undefined)
Device No.
First word of
send data
Device points
Receive data
storage words
Number of receive data words
+0
+1
PLC No.
+2
on
Station No.
Read data