Transmit: Txd(236) - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

Serial Communications Instructions

3-24-3 TRANSMIT: TXD(236)

Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operands
Operand Specifications
Outputs the specified number of bytes of data from the CPU Unit's built-in RS-
232C port or one of the Serial Communications Board's serial ports. (The
Serial Communications Board must be Ver. 1.2 or later).
TXD(236)
S
C
N
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Block program Step program
areas
OK OK
The contents of the control word, C, is as shown below.
15 12 11
C
Always 0
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
S: First source word
C: Control word
N: Number of bytes
0000 to 0100 hex (0 to 256)
Subroutines
areas
OK
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
1: RS signal control
2: ER signal control
3: RS and ER signal control
Serial port specifier
0: CPU Unit's RS-232C port
1: Serial Communications
Board port 1
2: Serial Communications
Board port 2
S
CIO 0000 to CIO 6143
W000 to W511
H000 to H511
A000 to A447
A448 to A959
T0000 to T4095
C0000 to C4095
D00000 to D32767
E00000 to E32767
Section 3-24
TXD(236)
@TXD(236)
Not supported.
Interrupt tasks
OK
C N
983