5. Commands and Functions - Sanyo Denki America, Inc.

6. Communication specifications
6.5 Communication Example
The following example explains the communication process in detail.
For the purposes of this example, the amplifier’s address is set to 0.
Parameter WR
Transmission example: Setting the Gain parameter1=5 (command 21h).
Packet Length Address Command Code Data Checksum
5 0 21h 5 7Bh
Parameter RD
Example: Reading the Gain parameter1 (command 21h) using Parameter RD (command 80h).
Transmitted data:
Packet Length Address Command Code Data Checksum
5 0 80h 21h F6h
Returned data:
Packet Length Address Response Status Data 1 Data 2 Checksum
6 0 21h 5
Point Data Save
Transmitted data format:
Packet Length Address Command code (56h) Point No Direct Command Code Data Checksum
Example: Storing an incremental move command (command 38h) = 4000 (FA0h) to Point No=2.
Packet Length Address Command Code Point No Command Data Data Data Data Checksum
9 0 56h 2 38h A0h Fh 0 0 48h
Point data RD
Transmitted data format:
Packet Length Address Command Code (81h) Point No Checksum
Returned data format:
Packet Length Address Response Status Store Command Data Checksum
* There is no point number attached to the return data.
Example: Reading the Point data stored at .
Transmitted data format:
Packet Length Address Command Point No Checksum
5 0 81h 2 88h
Returned data format:
Packet Length Address Response Status Store Command Data Data Data Data Checksum
9 0 * 38h A0h Fh 0 0 *
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