Omron CJ - INSTRUCTIONS Reference Manual page 1008

3. Instructions
• Storing Data from the Rightmost Byte (Bits
12 to 15 of C = 8 hex)
Example: Storing the value 12345678 hex
in S+5 and S+6
Example Programming
In this example, ESATR(722) is used to overwrite the Number of Contact Operations set value in a
DRT2 Slave (I/O Terminal).
Communications Port
Enabled Flag (Port 6)
A202.06
0.00
Explicit message command format
10 08
Service Code
Destination node address
CS1W-DRM21 DeviceNet Unit
(CPU Bus Unit with unit number 2)
CPU
Unit
Unit address 12 hex (because
the unit number is 2)
Explicit
message
S: D0 0
S:+1 D1 0
S+2: D2 0
S+3: D3 0
S+4: D4 0
S+5: D5 0
S+6: D6 0
C: D201 8
C+1: D202 0
C+2: D203 0
970
When CIO 0.00 and A202.06 (the Communications Port
Enabled Flag for port 06) are ON, EXPLT(720) writes the
Number of Contact Operations set value for input 2 in a
@ESATR
DRT2 Slave (I/O Terminal).
D0
S
D100
C (Service Code = 10 hex,) Class ID = 08 hex, Instance ID =
02 hex, and Attribute ID = 68 hex.
In this case, the Number of Contact Operations is being set
to 500 (1F4 hex), so the service data is set to 000001F4.
02 68 F4 01 00
Service Data:01F4Hex
Attribute ID
Instance ID
Class ID
ESATR(722)
instruction
Slave (I/O Terminal)
with node address 10
0 0 C
Number of bytes of data: S+1 to S+6 = 6 words = 12 bytes = 0C hex
0 0 A
Slave's node address = 10 = 0A hex
0 0 8 Class ID = 08 hex
Instance ID = 02 hex
0 0 2
Attribute ID = 68 hex
0 6 8
Service Data = F401 hex
1 F 4
0 0 0
Byte order = 8 hex (from rightmost byte), communications port = 6 hex
6 1 2
(port 6), and the DeviceNet Unit's unit address = 12 hex
0 0 0
Response monitoring time = 0000 hex (2 s)
0 0 0
Explicit format type = 0000 hex (DeviceNet format)
Frame
In this case, 12345678 hex is
stored from the rightmost byte in
the order 78 56
00
CS/CJ/NSJ Series Instructions Reference Manual (W474)
The data in the frame is in the
order 78 56 34 12.
78 56 34 12
34 12.
15 08 07
00
S+5 5 6 7 8
S+6 1 2 3 4