Omron CJ1W-SCU32 Operation Manual page 368

A Standard System Protocol
Parameter Area Broadcast Send
(Sequence No. 617 (Hex 0269))
This sequence writes the specified number of elements from the address of the specified parameter
area using a broadcast.
Send Data Word Allocation (3rd Operand of PMCR(260))
First word of
send data
Offset
+0 Number of send data words
+1 (Undefined)
+2 Parameter type (4 digits hex)
+3 First write address (4 digits hex)
+4 Number of elements (4 digits hex)
+5 Number of bytes to write (4 digits hex)
+6 Write data
on
Set the number of bytes to write to twice the of the actual number of send data bytes. This is neces-
sary because the data is converted to ASCII data before being written. When hexadecimal data is
converted to ASCII data, data in the first write address +0 and +1 is stored in I/O memory in order
from the leftmost word to the rightmost word and the data is sent starting from the send data word
with the largest offset. This is done because user programming handles data in 2-word (4-byte)
units.
Send data words
0 0 0
4
0 0 0
3
0 0 0
2
0 0 0
1
Receive Data Word Allocation (4th Operand of PMCR(260))
None. (Specify a dummy value for the operand, such as #0000.)
R-34
Number of send data words
+0
(Undefined)
+1
Parameter type
+2
First write address
+3
Number of elements
+4
Number of bytes to write
+5
+6
Write data
on
Contents (data format)
Send frame
3
1 2
2
0 0 0 0 0 0 0 1
1
0
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
0007 to 00FA Hex (7 to 250 decimal)
---
Set the parameter type in hexadecimal code.
Set the first write address in hexadecimal code.
Set the number of elements to write in hexadeci-
mal code.
(The leftmost bit in the number of elements is
always 1.)
Set the number of bytes of write data to send in
hexadecimal code.
Set the data to write from the first write address.
3 4
0 0 0 3
0 0 0 2
Data