Omron CX-PROGRAMMER 5.0-FUNCTION BLOCK OPERATION Operation Manual page 107

Instruction Support and Operand Restrictions
Instruction Mnemonic
TRANSMIT TXD
@TXD
RECEIVE RXD
@RXD
TRANSMIT VIA TXDU
SERIAL COMMUNI-
@TXDU
CATIONS UNIT
RECEIVE VIA RXDU
SERIAL COMMUNI-
@RXDU
CATIONS UNIT
CHANGE SERIAL STUP
PORT SETUP
@STUP
92
Function Symbol
code
236
TXD
S
C
N
235
RXD
D
C
N
256
TXDU
S
C
N
255
RXDU
D
C
N
237
STUP
C
S
Operands Supported
variable
data types
S: 1st source word UINT
C: Control word UINT
N: Number of bytes UINT
0000 to 0100 hex(0
to 256 decimal)
D: 1st destination UINT
word
C: Control word UINT
N: Number of bytes UINT
to store 0000 to
0100 hex(0 to 256
decimal)
S: 1st source word UINT
C: 1st control word UDINT
N: Number of send UINT
bytes (4 digits
BCD)
D: 1st destination UINT
word
C: 1st control word UDINT
N: Number of stor- UINT
age bytes
C: Control word UINT
(port)
S: 1st source word UINT
Section 2-6
AT
setting or
array
variable
required
(Required
word data
size
shown in
parenthe-
ses.)
Yes (not
fixed)
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Yes (not
fixed)
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Yes (not
fixed)
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Yes (not
fixed)
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Yes (not
fixed)