CV500BC051 Omron, CV500BC051 Datasheet - Page 283

• Manufacturer Part Number: CV500BC051
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BC051

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

CVM1 and CV-series PLCs
Under Asynchronous
Operation
CS/CJ-series PLCs, CVM1
and CV-series PLCs in
Synchronous Mode,
CQM1H-series PLCs, and
C200HX/HG/HE PLCs
8-3-2
258
Data Link I/O Response Time
PLC processing
Instruction execution
Peripheral processing
Data Processing Time
Basic processing
Peripheral servicing interval
CPU Bus
Unit service
When a CVM1 or CV-series CPU Unit is operating in asynchronous mode,
data exchange with the Controller Link Unit is executed as interrupt process-
ing during peripheral processing, regardless of the cycle time of PLC instruc-
tion execution. Data exchange timing is as follows:
More than one data exchange can be executed during a PLC cycle, depend-
ing on the data exchange timing. If interrupt processing for data exchange is
executed, the peripheral servicing interval will be lengthened by the time
required for the interrupt processing (see 8-3-2 Data Processing Time on
page 258).
When a CS/CJ-series, CQM1H-series, CVM1, or CV-series PLC is operating
in synchronous mode, a CQM1H-series, or a C200HX/HG/HE PLC is operat-
ing, data exchange with the Controller Link Unit is executed as processing
during peripheral processing for the PLC cycle. Data exchange timing is as
follows:
If processing for data exchange is executed, the PLC cycle time will be length-
ened by the time required for the interrupt processing (see 8-3-2 Data Pro-
cessing Time below).
The time required to process data exchange (data processing time) can be
roughly estimated as shown in the following table.
The number of words processed in a single data exchange is shown in the fol-
lowing table for each series of PLC. If the number of data link words exceeds
the value shown in the table, data exchange will be executed as several sepa-
rate processes.
PLC processing
CS1-H, CJ1-H, CJ1M CPU Unit
CS1, CJ1 CPU Unit
CVM1-series CPU Unit
Execution
PLC cycle time
Interrupt processing
for data exchange
Basic processing
I/O refreshing
Programming
Device/Host Link
service
Basic processing
CPU Unit
Execution
Execution
CPU Bus
Unit service
Interrupt processing
for data exchange
I/O refreshing
PLC cycle time
Processing for
data exchange
I/O refreshing
0.1 ms + Number of transfer words × 0.7 µs
1.5 ms + Number of transfer words × 1 µs
1.7 ms + Number of transfer words × 1 µs
Programming
Device/Host Link
service
Equation estimating data processing time
Basic processing
Execution
Peripheral
service
CPU Bus
Unit service
I/O refreshing
Interrupt processing
for data exchange
Basic processing
Programming
Device/Host Link
service
Section 8-3
Execution