C500DA101 Omron, C500DA101 Datasheet - Page 200

• 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

9-5-3 Using Pulse Signals
User Programming Examples
Method 2
In this method, each work bit is turned ON when PC write process is completed,
and the result is set in the PC Write Completed Bit according to an OR of these
bits. This prevents the PC Write Completed Bit turned ON by one program block
from being turned OFF by another program block.
In the C500-DA501 Analog Output Unit, a pulse signal that turns ON and OFF
every 0.5 second is output to the allocated I/O words during normal operation.
These pulse signals are not output when operation is abnormal. Therefore, the
CPU Unit can use this flag as an input condition to check reliability of conversion
data from the Analog Output Unit.
An example of a simple program for monitoring the pulse signal is shown below.
Pulse Signal Flag:
Program block #1
Program block #2
Program block #3
Writes parameters to Analog Output
Unit.
Turns ON work bit D when PC write
process is completed.
Writes conversion data to Analog
Output Unit.
Turns ON work bit E when PC write
process is completed.
Reads parameters or conversion data
from Analog Output Unit.
Turns ON work bit F when PC write
process is completed.
(Two-word operating mode: Bit 11 of word n+1)
(Four-word operating mode: Bit 11 of word n+3)
After #1 ends, #2 starts.
After #2 ends, #3 starts.
Bit 06 of word n+1
(PC Write Completed Bit)
Section
189
9-5