Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 1015

Serial Communications Instructions
Operand Specifications
specified, the data in the word or register must always be 0000. An error will
occur and the Error Flag will turn ON if any other constant or a word address
is given and PMCR(260) will not be executed.
R: First Receive Word and Receive Area
Received data is automatically stored in words starting with R+1 and the num-
ber of words received plus R (i.e., including R) is automatically written to R
between 0000 and 00FA hex (0 and 250 decimal).
Setting Before Executing PMCR
Set the data specified by m (beginning with D) as the initial data for the
receive buffer (backup data for receive failure). Data m can be set to 0002 to
00FA (hex) (2 to 255). If 0000 (hex) or 0001 (hex) is specified for m, the initial
value of the receive buffer will be cleared to 0.
Always set a word address for R even if there is no receive data. If a constant
is set, an error will occur, the Error Flag will turn ON, and PMCR(260) will not
be executed. If there is no receive data, R will not be used and can be used for
other purposes.
If there is no operand specified in the execution sequence, such as a direct or
linked word, specify the constant #0000 for R. If a word address or register is
specified, the data in the word or register must always be 0000.
R
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in binary
Number of send words + 1
n words of data must be
to
prepared in advance.
Number of received words +1
The m words of data that is
to
received is stored here.
C1 C2
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
En_00000 to En_32767
(n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Section 3-24
S R
A448 to
A959
975