I/O data
5-9
5.2 Operation examples
5.2.1. An example of reading a parameter
Step 1: Store the ID of designated slave unit (Designated ID)
P. 5-5
Step 2: Specify the parameter to be obtained (Designated parameter number)
P. 5-5
Step 3: Switch the parameter update start command (Q) from OFF to ON
P. 5-5
Step 4: Refer to the update confirmation flag return signal (L)
P. 5-3
Step 5: Write the inverted value of the update confirmation flag return signal
(L) referenced to in the update confirmation flag (R)
P. 5-6
Step 6: Ensure that the update confirmation flag return signal (L) is updated to the value written in
Step 5
P. 5-3
Step 7: If the update confirmation flag and the update confirmation flag return signal match,
consider the status details and the parameter values stored are the latest
[Tips]
• Refer to P. 5-2 for further information on the ID.
• If the update confirmation flag and the update confirmation flag return signal did not match in Step
7, the parameter read operation is in progress. Wait for a moment and check it again.
• A time required for parameter reading is defined as “Number of ON-status parameter update start
command (Q
)”
“Bit transmission cycle time”
3.
