53
Communications Specifications
Section 5-2
5-2-1
Trigger
When a trigger is specified, communications are performed with the Data Car-
rier when the Command Execution Bit (word n, bit 0) in the Special I/O Unit
Area turns ON and command execution is ended when communications have
been completed. If there is no Data Carrier in the communications area when
the Command Execution Bit turns ON, Data Carrier Missing Error Flag (word
(n + 8), bit 10) in the Results Information in the Special I/O Unit Area will turn
ON and an error code (E072) will be stored in the Processing Results Monitor
(word (n + 9)). Use a sensor or other method to detect the presence of a Data
Carrier before turning ON the Command Execution Bit.
R/W Head
Communications are
performed with a Data
Carrier already in the
communications area
when the Command
Execution Bit turns ON.
Communications area
Data Carrier
Results
Comm. A
Comm. B
Normal End Flag
Error End Flag
Communications with
Data Carrier
Data Carrier movement
Data Carrier A
Command Execution Bit
Trigger Specification
ID Busy Flag
Data Carrier B (missing)
Data Carrier Missing Error
Note: Results are returned on whether or not
a Data Carrier is detected.
Results
Summary of Contents for CJ - 12-2004
Page 2: ...SYSMAC CS CJ Series ID Sensor Units Operation Manual Revised December 2004...
Page 3: ...iv...
Page 11: ...xii...
Page 55: ...36 Connections and Wiring Section 3 4...
Page 69: ...50 I O Data Allocations Section 4 3...
Page 91: ...72 Data Check Section 5 7...
Page 141: ...122 Sample Programming Appendix B...
Page 147: ...128 Revision History...