C500DA101 Omron, C500DA101 Datasheet - Page 165

• Manufacturer Part Number: C500DA101
• Description: ANALOG OUTPUT UNIT
• Manufacturer: Omron

Specifications of C500DA101

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• No. Of Analog Outputs: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Four-word Operating
Mode
Comparison between Two-word and Four-word Operating Modes
9-3-1 Basic Operation
Two-word Operating Mode
154
Data Exchange with CPU Unit
Two-word
operation
Four-word
operation
Instructions such as MOV
are used to write to or
read from the allocated
I/O words.
Read/Write Pointer:
This pointer specifies RAM
addresses in the Analog
Output Unit. Write
destination and read
source addresses are
specified in the pointer.
Operating
mode
I/O READ (READ)
and I/O WRITE
(WRIT)
MOV, OUT, and
other instructions
Instructions
available
1, 2, 3...
I/O words allocated for a
Special I/O Unit
MOV,
etc.
Note Specify a value greater than 1 as the number of words transferred in the WRIT
Data memory, etc.
Address
Write data
Read data
CPU Unit
The MOV, OUT, and other generic instructions are used to read and write RAM
data in the Analog Output Unit through the allocated I/O words. One word is read
or written at a time. Data is exchanged at I/O refresh.
instruction.
1. Use the I/O WRITE instruction, WRIT, to write parameters to the specified
2. After 100 ms (internal processing time required for the Analog Output Unit),
Each time an
instruction is executed.
High-speed processing
is possible.
At the I/O refresh
addresses in the Analog Output Unit.
use the WRIT instruction to write conversion data to addresses 02 to 08 in
the Analog Output Unit.
Access to RAM
Write conversion data
Word n+1
Word n+2
Word n+3
Word n
After 100 ms
I/O
refresh
Write parameters
Address
Analog Output Unit
Data exchange
63 words max.
One word at a
time
Write
Read
Direct access
Indirect access
(via the allocated
I/O words)
Using WRIT instruction (see
note)
Timer instruction is used.
Using WRIT instruction (see
note)
Word access
8 analog output points
RAM Data:
Addresses 01 to 08 contain the data
for 8 output points. Other addresses
contain the scaling upper and lower
limits, upper and lower limits,
biary/BCD mode settings, and other
parameters/flags.
Read/write process is performed
for RAM address indicated by the
Read/Write Pointer. One word is
read or written at a time.
Read/write process is performed
through handshaking with the
Read/Write Request Bit, PC Write
Completed Bit, and PC Read
Completed Bit.
Cannot be used
for Units on
SYSMAC BUS
Slave Racks.
Can be used for
Units on SYSMAC
BUS Slave Racks.
Section
Restrictions
9-3