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ID : 530
I/O Statement
I/O statement refers to a statement used for communication between the robot controller and external devices.
Devices that communicate by using the I/O statement are listed below.
- I/O relationship
- Communication is established in I/O relation including various field networks such as DeviceNet and CC-Link.
- Data communication relationship
- Data communication such as Ethernet and RS232C.
- Pendant relationship
- Messages are output to TP.
- Others
- Communication is established with other devices such as a visual device and sensors.
I/O Statement of I/O Relationship
I/O communication is established basically by using I/O type variable. Each global variable is directly linked with an I/O port and signal ON is 1 and Off is 0. Signals are transmitted directly from the I/O port when the I/O variable value is changed. In addition, declaring I/O type local variable and creating data with data length allows for handing the data as a value.
| Statement name | Function description |
|---|---|
| Set | To turn I/O type variable Bit to On. |
| Reset | To turn I/O type variable Bit to Off. |
Serial Communication Relationship
| Statement name | Function description |
|---|---|
| Comm.Open | To open the line for data communication. |
| Comm.Close | To close the line designated for data communication. |
| Comm.Output | To transmit data by the data communication function. |
| Comm.Input | To receive data by the data communication function. |
| Comm.Clear | To clear the data communication reception buffer. |
| Comm.Count | To return the number of data bytes readable from reception buffer of the data communication function. |
| Comm.State | To return the port status of the data communication function. |
TP Relationship
| Statement name | Function description |
|---|---|
| PrintMsg | To display an icon indicating that a string is output in the message output window and then in the TP status bar. |
| PrintDbg | To output a string to the message output window. |
Other Devices
A provider is used for communication with other devices such as a visual device and sensors.
For details of providers, contact our sales representative.
ID : 530