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40
SW2-1 Set for Normal Memory Allocations
(CS1: n=2000+10 x Unit number)
(C200HX/HG/HE, C200HS, C200H: n=100 + 10 x Unit number)
I/O
Address
Data item
Data contents
Word
Bit
Output
n
15 and 14
Read/Write
The data bit sets operation to read or write.
Write = 01 Read = 00
Read/Write
command
13 and 12
Loop no.
The data bit sets the Loop Number to which the
read or write operation applies.
Loop 1 = 01, Loop 2 = 10
11 to 08
Bank no.
Sets the bank number to which the read or write
operation applies as 1-digit BCD data. Set executed
bank numbers from 1 to 8.
07 to 00
Command
Sets the command code (Refer to page 41) for the
read or write operation as 2-digit BCD data.
n+1
15 to 00
Write data
Set the SP for a write operation as 4-digit BCD data. For data
including 0.1 units, the least significant digit represents 0.1. Set
the most significant digit to F for minus (–). The write operation
commences on the ON rising-edge of the write request flag (Wd
(n+2), bit 00 ).
n+2
15 to 12
Loop 1
executed
bank
number
Set the bank number currently executed for Loop 1 and Loop 2 as
1-digit BCD data. Executed bank numbers are from 1 to 8. If the
value is set out of this range, the bank number reverts to the
previous value (default value = 1).
11 to 08
Loop 2
executed
bank
number
e ous a ue (de au
a ue
)
07
---
Not used. Set to 0.
06
Loop 1
STOP
Bit set to 0 during temperature control of Loop 1 and set to 1
when the control stop is executed. This bit will not be available
under the program mode with SW203-5 set to ON (same as the
control stop).
05
---
Not used. Set to 0.
04
Loop 2
STOP
Bit set to 0 during temperature control of Loop 2 and set to 1
when the control stop is executed. This bit will not be available
under the program mode with SW203-5 set to ON (same as the
control stop).
03 to 01
---
Not used. Set each bit to 0.
00
Write
request
Turn this bit ON when writing the write data set with Wd (n+1)
with the commands set to Wd (n).
Turn this bit OFF after the write complete flag (Wd (n+6), bit 08)
turns ON.
Input
n+3
15 to 00
Loop 1 PV
Outputs the Loop 1 and Loop 2 PV (process value) as 4-digit
BCD data. For platinum resistance thermometer data, the least
n+4
15 to 00
Loop 2 PV
BCD data. For latinum resistance thermometer data, the least
significant digit is 0.1. Set the most significant digit to F for minus
(–).
n+5
15 to 00
Read data
Outputs the data read with the commands set with Wd (n). For
data including 0.1 Units, the least significant digit represents 0.1.
Set the most significant digit to F for minus (–).
n+6
15 to 12
---
Not used. Each bit is set to 0.
11
Write error
Bit set to 1 when the write data exceeds the set permissible
range. The bit is automatically set to 0 on the OFF falling-edge of
the write request flag (Wd (n+2), bit 00).
10 to 09
---
Not used. Each bit is set to 0.
08
Write
complete
Bit set to 1 when the write operation due to the instructions set
with Wd (n) ends normally. The bit is automatically set to 0 on the
OFF falling-edge of the write request flag (Wd (n+2), bit 00).
Memory Allocation
Section 4-1
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