C500DA101 Omron, C500DA101 Datasheet - Page 92

• 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

Internal Processing and
Parameter Settings
I/O READ Instruction – READ
I/O WRITE Instruction – WRIT
Data Exchange with CPU Unit
1, 2, 3...
The C500-AD501 contains a processor that converts analog data and performs
advanced functions on the data. The following processing is performed.
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 READ instruction
I/O WRITE instruction
1. RAM is initialized and internal diagnosis is performed with power is turned
2. Parameters are transferred from EEPROM to RAM. From this point on, the
3. The I/O WRITE instruction can be executed to change the parameters in
4. The parameters in RAM at any time can be written to EEPROM by using the
5. RAM contains addresses 000 to 153. Addresses 000 to 045 are read-only
6. Input data is converted every 25 ms for all of the enabled input points. (Of the
7. The I/O READ and I/O WRITE instructions are used as shown below. Refer
ON.
Unit will operate using the parameters in RAM unless they are changed,
e.g., by executing the I/O WRITE instruction.
Note EEPROM contains the default settings for parameters when the Unit
RAM. The parameters in EEPROM, however, will not be changed and any
changes to the RAM parameters will be lost the next time power is turned
OFF.
EEPROM Write Bit. Refer to 5-6-7 EEPROM Functions. The data written to
EEPROM will not be lost even if power is turned OFF.
and are used to monitor operation. Addresses 046 to 153 are used to set up
or execute the various functions.
The I/O READ instruction can be used for all RAM addresses 000 to 153.
The I/O WRITE instruction, however, can be used only for RAM addresses
0046 to 153.
Note however, that the number of addresses that can be read or written with
the I/O READ/WRITE instructions in one operation is limited to 127. There-
fore, in order to read addresses 000 to 153 using the I/O READ instruction, it
is necessary to execute I/O READ twice. (Execute the I/O READ instruction
twice using the I/O WRITE instruction to set the beginning address that is
read.)
16 input points, enable only the ones that are actually used.)
Note Using the advanced function can increase the conversion time to
to the Operation Manual for your PC for details on programming.
Instruction
is shipped from the factory.
greater than 25 ms.
READ
WRIT
W
S
D
W
S
D
READ
WRIT
Mnemonic
Number of words transferred
Specify word n + 1 allocated to the Unit.
Destination address
Number of words transferred
Transfer start address
Specify word n allocated to the Unit.
88
87
C500/C1000H/C2000H
Function code
Section
190
191
CVM1/CV
5-4
77