Restrictions For Cs1-Series Pcs - Omron C200H-ASC11 Manual

Restrictions for CS1-series PCs

6-6

Restrictions for CS1-series PCs

Method 1: PC WRITE or PC READ
108
There are five methods that can be used to transfer data between the CPU
Unit and an ASCII Unit. Refer to 6-2 Selecting the Data Exchange Method for
details. When an ASCII Unit is used with a CS1-series PC, however, there are
addressing restrictions for some of these methods, as shown in the following
table.
Method
1
2
3
4
5
The specific restrictions are as follows:
1,2,3... 1. Method 1: There are restrictions in the areas and words that can be ad-
dressed when using allocated words in memory to transfer data.
2. Method 2: There are restrictions in the areas and words that can be ad-
dressed when using PC WRITE@ or PC READ@ in the BASIC program
in the ASCII Unit to transfer data.
3. Method 4, 5: IOWR and IORD can be used to transfer data to any memory
area words in the CS1-series CPU Unit. Dummy addresses may have to
be used in PC QWRITE@ or PC QREAD@.
Any words that can be addressed using the allocated words n+3 and n+4 can
be used for data transfer. Possible addresses are shown in the following table.
Area
DM Area
CIO Area
Data Link Area (in
CIO Area)
Holding Bit Area,
part 1
Holding Bit Area,
part 2
EM Area, bank 0
Timer Area
Note Other addresses cannot be accessed directly in CS1-series CPU Unit mem-
ory. Use methods 3 to 5 for other addresses.
CPU Unit
MOV and other PC WRITE or
instructions PC READ
No programming PC WRITE@ or
required PC READ@
MOV and other PC GET or PC
instructions PUT
IOWR (#00 ) or PC EGET or
@ @
IORD(#00 ) PC EPUT
@ @
IOWR (#FD00) or PC QWRITE@ or
IORD(#FD00) PC QREAD@
CS1 address
(see note)
D00000 to D06655
CIO 0000 to
CIO 0511
(except CIO 0281)
CIO 1000 to
CIO 1063
H000 to H099
H100
(except H 101)
H102 to H127
E0_00000 to
E0_06143
T0000 to T0511
ASCII Unit Area restrictions
Yes
Yes
None
None
None, but dummy addresses
may need to be used for PC
QWRITE@ or PC QREAD@
Designation method
Area (bits 12
to 15 in word
n+3, 1 BCD
digit)
0
1
2
3
4
5
6
Section 6-6
First word address
(bits 00 to 15 in
word n+4,
4 BCD digits)
0000 to 6655
0000 to 0511
(except 0281)
0000 to 0063
0000 to 0099
0000
(except 0001)
0002 to 0027
0000 to 6143
0000 to 0511