Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 1046

Serial Communications Instructions
Variations
Applicable Program Areas
Operands
Operand Specifications
1006
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Block program
areas
OK
The contents of the control words, C and C+1, are as shown below.
15 12
C
15
C+1
Note The serial port's unit address can be specified directly by setting the serial
port number to 0 and setting the destination unit address to the serial port's
unit address. (Set the destination unit address to 80 hex + 4
port 1 or 81 hex + 4
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
Step program
areas
OK OK
11 8 7 4 3 0
Byte order
0: Most significant bytes first
1: Least significant bytes first
RS and ER signal control
0: No RS and ER signal control
Always 00
1: RS signal control
2: ER signal control
3: RS and ER signal control
12 11 8 7 4 3 0
Destination unit address (See note.)
Serial Communications Unit's unit
address (unit number + 10 hex)
Serial port number
0: Specify directly. (See note.)
1: Port 1
2: Port 2
Port number specifier
(Internal logical port)
Specify 0 to 7 or F.
(F: Automatic allocation)
unit number for port 2.)
S
CIO 0000 to CIO
6143
W000 to W511
H000 to H511
A000 to A959
T0000 to T4095
C0000 to C4095
D00000 to
D32767
E00000 to
E32767
Section 3-24
TXDU(256)
@TXDU(256)
Not supported.
Subroutines Interrupt tasks
OK
unit number for
C
CIO 0000 to CIO CIO 0000 to CIO
6142 6143
W000 to W510 W000 to W511
H000 to H510 H000 to H511
A000 to A958 A000 to A959
T0000 to T4094 T0000 to T4095
C0000 to C4094 C0000 to C4095
D00000 to D00000 to
D32766 D32767
E00000 to E00000 to
E32766 E32767
D