CompoBus/D Communications Card Operations

Chapter 5

 

 

 

HTiming of Message Response Reading

Responses are read when the Message Communications Enabled Flag turns ON in the next cycle. The Message Communications Enabled Flag will turn OFF when a Master Unit is executing message com- munications. If the message response is faster than the PC ladder program cycle time, the Message Communications Enabled Flag will remain ON and response processing will not be possible. Execute the read response processing before IOWR, as shown in the following diagram, and produce a Mes- sage Communications Status Flag (d) using bit A.

A

C

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Message

 

 

 

 

 

 

 

Communications

 

 

 

 

 

 

 

Enabled Flag

 

 

 

Execution

Message

 

 

 

 

 

 

 

 

 

condition

Communications

A

 

 

 

 

Enabled Flag

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25506

Equals Flag

DIFU C

SET D

Read response processing

RSET D

(@) IOWR

C

S

D

B

A

Note If the read response processing is executed after IOWR, there can be no Message Communica- tions Enabled Flag response by means of IOWR, so an attempt could be made to read the re- sponse even though the message communications have not been completed.

HCommunications Flags

Flag

Functions

 

 

Equals Flag (SR 25506)

The Equals Flag turns OFF when an error occurs in writing a command

 

from the CPU Unit to the Master Unit.

 

This Flag turns ON after a command has been written normally from the

 

CPU Unit to the Master Unit.

 

 

Error Flag (SR25503)

The Error Flag is OFF when all operands and the control code are legal.

 

This Flag turns ON when an illegal operand or control code is set or

 

when there is an error in instruction execution.

 

 

Message Communications

The Communications Enabled Flag turns OFF during messages

Enabled Flag in the Master Unit

communications or when message communications are not possible.

status area (bit 12 in IR 101 +

This Flag is ON when message communications are possible.

10 x unit No.)

 

 

 

5-12

Page 74
Image 74
Omron 3G3FV-PDRT1-SIN user manual Timing of Message Response Reading, Communications Flags, Flag Functions

3G3FV-PDRT1-SIN specifications

The Omron 3G3FV-PDRT1-SIN is a highly sophisticated variable frequency drive (VFD) designed to enhance energy efficiency and drive performance in various industrial applications. This particular model is part of the Omron 3G3FV series, which is well-regarded for its reliability, versatility, and ease of use.

One of the main features of the 3G3FV-PDRT1-SIN is its ability to control asynchronous motors efficiently. The drive supports a wide range of motor types, making it suitable for diverse applications across different sectors, including manufacturing, HVAC systems, and material handling. The unit is designed to provide precise control over the speed and torque of motors, which is crucial for optimizing machine performance and energy consumption.

The 3G3FV-PDRT1-SIN incorporates advanced technologies such as vector control and high-performance algorithms. These technologies allow for superior motor control, enabling the drive to maintain accurate speed and torque under varying loads. This functionality is essential for applications that require consistent performance, particularly in processes that demand high precision and responsiveness.

Additionally, the drive features an easy-to-use graphical display, which simplifies the programming and monitoring of drive settings. Users can quickly configure the operating parameters and monitor performance metrics, enhancing operational efficiency. The intuitive interface also allows for quick troubleshooting, reducing downtime and maintenance costs.

The Omron 3G3FV-PDRT1-SIN is built with robustness and durability in mind. It conforms to several international standards, ensuring reliable operation in industrial settings. The drive is designed to withstand harsh environments, including fluctuations in temperature and humidity. This resilience helps to extend the lifespan of both the drive and the connected motor.

Furthermore, the 3G3FV series includes built-in communication capabilities that facilitate integration with other automation equipment. This connectivity supports various industrial protocols, enabling seamless data exchange and real-time monitoring of system performance.

In conclusion, the Omron 3G3FV-PDRT1-SIN is an advanced variable frequency drive that combines energy efficiency, precision control, and robust design. It is an ideal solution for optimizing motor-driven systems across a range of industrial applications, with features that enhance user experience and overall operational effectiveness.