C500DA101 Omron, C500DA101 Datasheet - Page 167

• 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

156
Data Exchange with CPU Unit
m
words
Example:
9
words
CPU Unit
Number of words transferred
Note The specified first RAM address is not set in the Read Pointer (address 12) in RAM.
CPU Unit
Allocated I/O start address + 1
First RAM
address: a
turned OFF and then ON, or until the Unit is restarted. This value is turned OFF
when the power is turned OFF and then ON or when the Unit is restarted.
When the Number of Words Transferred is Greater than 1
CPU Unit
Using the I/O READ Instruction, READ
The READ instruction reads the specified number of words by using the content
of the Read Pointer (address 12) in RAM of the Analog Output Unit as the first
RAM address.
Number of words transferred y0002
Number of words transferred
Data destination start address
Transfer source address
Read
Write source first address
(See
note.)
Analog Output Unit (Allocated I/O: n, n+1)
m–1
words
First allocated I/O address
(See
note.)
First RAM
address: 01
8
words
Address
Read
Pointer
Write
m
words
Allocated I/O: 0002, 0003
Analog Output Unit (Allocated I/O: n, n+1)
Write
Address
Address
Analog Output Unit
The READ instruction uses the value of the Read
Pointer in RAM as the first RAM address to read data
from m words and write it to words D to D+(m–1).
Before executing the READ instruction, set the value of
the Read Pointer in the WRIT instruction with the
number of words transferred set to 1.
Set using the WRIT instruction with the number of
words transferred set to 1.
(m – 1) words starting from word S+1 are written
by using the content of word S as the first RAM
address of the Analog Output Unit. Use this
instruction when writing parameters and
conversion data directly to the Unit.
Section
9-3