YASKAWA SVC - INF_RD (Read Device Information)

4.3 Motion Subcommand Details
4.3.4 INF_RD (Read Device Information)
4
Motion Control Program Commands and Instructions
4-129
4.3.4 INF_RD (Read Device Information)
The INF_RD subcommand reports the device information of the connected MECHATROLINK-III
Servo Drive to the monitor parameters.
The target information is specified in the OW5B setting parameter (Device Information
Selection Code).
Execution and Operating Procedures
1. Make sure that all of the following conditions are met.
2. Set the OW5B setting parameter (Device Information Selection Code).
3. Set the OW0A setting parameter (Motion Subcommands) to 3 to execute the
INF_RD motion subcommand.
The device information is reported in the monitor parameters.
4. Set OW0A to 0 to execute the NOP motion subcommand.
This concludes the read device information operation.
Related Parameters
The parameters that are related to this subcommand are listed in the following table.
 Setting Parameters
 Monitor Parameters
No. Execution Condition Confirmation Method
1 Must be ready for motion operation. Bit 0 in IW00 must be 1.
2 Motion command execution must be completed.
IW08 must be 0 and bit 0 in
IW09 must be 0.
Register
Address
Name Setting Details
OW
0A Motion Subcommands Set this parameter to 3 (INF_RD) to read device information.
OW
5B
Device Information
Selection Code
Select the device information to read. You can select the following
devices.
00 hex: Disabled
01 hex: Vendor ID code
02 hex: Device code
03 hex: Device version
04 hex: Device information file version
05 hex: Serial number
Register
Address
Name Monitored Contents
IW0A
Motion Subcommand
Response Code
This parameter shows the motion subcommand currently in execu-
tion.
This parameter is 3 during execution of the INF_RD command.
IW
0B
Bit 0
Command Execution
Flag
This bit changes to 0 (Completed) when the INF_RD operation will
end.
IW
0B
Bit 3
Command Error End
This bit changes to 1 (Completed with an error) when an error occurs
during execution of the INF_RD command.
This bit changes to 0 (Completed normally) when another command
is executed.
IW
0B
Bit 8
Command Execution
Completed
This bit changes to 1 (Normal execution completed) when execution
of the INF_RD command ends.
Continued on next page.