Omron V600 Series Operation Manual page 22

Data Carrier Motion and Command Conditions
1, 2, 3...
20
1. Send a polling auto command to Unit 1 R/W Head 1.
2. The ID Controller Immediately receives the command and returns a
response indicating that it has received the command.
3. Send a polling auto command to Unit 2 R/W Head 2.
4. The ID Controller immediately receives the command and returns a
response indicating that it has received the command.
5. The host computer can query the status of processing using subcommands
or suspend polling auto processing.
6. When the DC is not close to the specified R/W Head, a "not close" response
is returned in response to a query subcommand.
7. When a data carrier passes in front of Unit 1 R/W Head 1, write or read pro-
cessing is performed.
8. Once processing is completed, the ID Controller sends a response to the
host computer indicating that the processing indicated by the query sub-
command has been completed.
Section 3-1