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Serial communication instructions, Applicable program areas operands, 2 instructions – Omron SYSMAC CP CP1E-N@@D@-@ User Manual

Page 405: C: control word operand specifications

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2 Instructions

CP1E CPU Unit Instructions Reference Manual(W483)

Serial Co

mm

un
icatio

n

In

stru

ctio

ns

2

TXD

Serial Communication Instructions

TXD

Applicable Program Areas

Operands

C: Control word

Operand Specifications

Instruction

Mnemonic

Variations

Function

code

Function

TRANSMIT

TXD

@TXD

236

Outputs the specified number of bytes of data
from the CPU Unit’s built-in RS-232C port or the
Serial Option Board port.

Symbol

TXD

Area

Step program areas

Subroutines

Interrupt tasks

Usage

OK

OK

OK

Operand

Description

Data type

Size

S

First source word

UINT

Variable

C

Control word

UINT

1

N

Number of bytes 0000 to 0100 hex (0 to 256)

UINT

1

Area

Word addresses

Indirect DM addresses

Constants

CF

Pulse bits

TR bits

CIO

WR

HR

AR

T

C

DM

@DM

*DM

S

OK

OK

OK

OK

OK

OK

OK

OK

OK

---

---

---

---

C, N

OK

S: First source word

TXD(236)

S

C

N

N: Number of bytes

0000 to 0100 hex (0 to 256)

C: Control word

15

8

0

11

3

7

4

12

C

Always 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
1: CPU Unit’s RS-232C port
2: Serial Option Board port

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