91
Instruction Support and Operand Restrictions
Section 2-6
2-6-22 Serial Communications Instructions
INTELLIGENT I/O
READ
IORD
@IORD
222
C: Control data
UINT
---
S: Transfer source
and number of
words
UDINT
Yes (2)
UINT must
be used
when
array vari-
ables are
required.
D: Transfer destina-
tion and number of
words
UINT
Yes (not
fixed)
INTELLIGENT I/O
WRITE
IOWR
@IOWR
223
C: Control data
UINT
---
S: Transfer source
and number of
words
WORD
Yes (not
fixed)
D: Transfer destina-
tion and number of
words
UINT
Yes (2)
UINT must
be used
when
array vari-
ables are
required.
CPU BUS UNIT I/O
REFRESH
DLNK
@DLNK
226
N: Unit number
UINT
---
Instruction
Mnemonic
Function
code
Symbol
Operands
Supported
variable
data types
AT
setting or
array
variable
required
(Required
word data
size
shown in
parenthe-
ses.)
PROTOCOL MACRO PMCR
@PMCR
260
C1:Control word 1
UINT
---
C2: Control word 2
UINT
---
S: 1st send word
UINT
Yes (not
fixed)
R: 1st receive word UINT
Yes (not
fixed)
Instruction
Mnemonic
Function
code
Symbol
Operands
Supported
variable
data types
AT
setting or
array
variable
required
(Required
word data
size
shown in
parenthe-
ses.)
IORD
C
S
D
IOWR
C
S
D
DLNK
N
PMCR
C1
C2
S
R
Summary of Contents for CS1-H Series
Page 3: ...iv...
Page 5: ...vi...
Page 7: ...viii TABLE OF CONTENTS...
Page 15: ...xvi Application Precautions 4...
Page 151: ...136 Procedures Section 3 2...
Page 153: ...138 Data Types Appendix A...
Page 177: ...162 External Variables Appendix C...
Page 181: ...166 Revision History...