C500DA101 Omron, C500DA101 Datasheet - Page 54

• 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

Two-word Operation
I/O WRITE Instruction – WRIT
I/O READ Instruction – READ
READ/WRIT Execution Restrictions
38
1, 2, 3...
The I/O READ instruction, READ, is executed when the instruction execution
conditions are ON, the A/D Busy Flag (IR/CIO n+1, Bit 00) is OFF, and A/D Write
Completed Flag (IR/CIO n+1, Bit 01) is ON.
A NOP (No Operation) results if the A/D Busy Flag is ON or the A/D Write Com-
pleted Flag is OFF.
Immediate execution is used for the READ and WRIT instructions, but I/O data is
handled by the MOV instruction, which is executed according to I/O refresh tim-
ing. During programming, take into account the difference in timing between
writing the data to shared memory and data output.
The function codes for the I/O READ and I/O WRITE instructions, READ and
WRIT, differ according to the PC, as shown in the table below.
I/O WRITE instruction
I/O READ instruction
1. The differentiated READ and WRIT instructions cannot be executed for
2. The READ and WRIT instructions cannot be simultaneously executed for
3. One SYSMAC BUS/2 Remote I/O Master Unit can simultaneously handle
4. Therefore, when continuously executing READ instructions, you can use
Special I/O Units on SYSMAC BUS/2 Slave Racks. The READ and WRIT
instructions must be executed until the = Flag (A50006) turns ON indicating
that the execution is completed.
the same Special I/O Unit. In such cases, execute WRIT first, and after the
execution is completed, execute READ.
up to two READ and WRIT instructions. If two READ and WRIT instructions
are executed for Units mounted to SYSMAC BUS/2 Slave Racks and an at-
tempt is made to execute a READ or WRIT instruction for a third Unit, the CY
Flag (A50004) will be turned ON without executing the third instruction.
the READ and WRIT instructions for a maximum of two Special I/O Units
under each SYSMAC BUS/2 Remote I/O Master Unit.
When executing
WRIT
Instruction
READ
WRIT
W
S
D
W
S
D
WRIT
READ
Mnemonic
MOV
Data is written to
shared memory
Number of words transferred
Specify word n + 1 allocated to the Unit.
Destination address
1 scan
Number of words transferred
Transfer start address
Specify word n allocated to the Unit.
WRIT
87
88
C500/C1000H/C2000H
Time lag
Data is output
I/O
refresh
Function code
Section 4-3
Time
191
190
CVM1/CV