55
Communications Specifications
Section 5-2
5-2-3
Repeat Auto
With a repeat auto specification, the presence of Data Carriers is automati-
cally detected, and communications are performed, eliminating the need for
detecting the Data Carrier as is required for a trigger specification. As
opposed to a single auto specifications, command execution is not ended
when communications with the first Data Carrier have been completed, rather
the ID Sensor Unit waits for the next Data Carrier. Once communications
have been completed with a specific Data Carrier, communications will not be
performed with it again even if it remains in the communications area. Pro-
cessing is ended when the Abort Bit (word n, bit 02) turns ON.
Data Carriers are de-
tected as they enter
the communications
area and communica-
tions are performed.
R/W Head
Data Carrier A
Data Carrier B
Communications area
Abort processing
Results
Comm. A
ID Busy Flag
Normal End Flag
Error End Flag
Communications with
Data Carrier
Data Carrier movement
Data Carrier A
Waiting for Data Carrier
Command Execution Bit
Execution Abort Bit
Comm. B
Data Carrier B
Waiting for Data Carrier
Comm. C
Data Carrier C
Waiting for Data Carrier
Repeat Auto Specification
Results
Results
Содержание CJ - 12-2004
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