Network Instructions - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

Instruction Functions
Instruction Symbol/Operand
Mnemonic
Code
RECEIVE VIA
RXDU(255)
SERIAL COMMU-
NICATIONS UNIT
RXDU
@RXDU
255
D: 1st destination
word
C: 1st control
word
N: Number of
bytes to store
0000 to 0256 BCD
CHANGE SERIAL
STUP(237)
PORT SETUP
STUP
@STUP
237
C: Control word
(port)
S: First source
word

2-2-23 Network Instructions

Instruction Symbol/Operand
Mnemonic
Code
NETWORK SEND
SEND(090)
SEND
@SEND
090
S: 1st source
word
D: 1st destination
word
C: 1st control
word
NETWORK
RECV(098)
RECEIVE
RECV
@RECV
098
S: 1st source
word
D: 1st destination
word
C: 1st control
word
Reads the specified number of bytes of data from the serial port of a
Serial Communications Unit (version 1.2 or later). The data is read in
no-protocol mode with the start code and end code (if any) specified in
D
the allocated DM Setup Area.
C
N
Changes the communications parameters of a serial port on the CPU
Unit, Serial Communications Unit (CPU Bus Unit), or Serial Communi-
cations Board. STUP(237) thus enables the protocol mode to be
C
changed during PLC operation.
S
Transmits data to a node in the network.
Local node
S
15 0
D
S
C
Requests data to be transmitted from a node in the network and
receives the data.
S
Local node
D
15
C
D
m
Function
Function
Destination node
15
D
n: No.
of send
words
Source node
0
15
S
n
Section 2-2
Location
Execution
condition
Output 1013
Required
Output 1021
Required
Location
Execution
condition
Output 1044
Required
0
n
Output 1050
Required
0
Page
Page
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