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Communications (Serial and Parallel)
16.4
Inspection Execution and Result Output Procedures
Notes
If an overflow occurs, the number represented by the specified
8−bit range and the OVF signal (overflow flag) are output
simultaneously (e.g. if the register number result is "257"
(100000001 binary), "1" and the overflow signal are output).
For registers where an error (ER) was generated for a
judgment output or numerical calculation, the value output is
0.
− Timing Chart with Handshaking
1 Timing chart
T1
/START
(A)
/READY
(B)
/D1 to D8
/STROB
/ACK
/REND
T1: Width of START signal (1ms min.)
T2: Response time with respect to the START signal (1ms max.)
T3: Image capture time (varies according to camera type and shutter speed)
T4: Time from the output of results to the STROB turning on (1ms max.)
To: Timeout time
Td: Delay time (Includes signal confirmation time.)
Set "To: timeout time" and "Td: delay time" in the Paral-
lel Output in the Environment menu.
To = 20ms to 20000ms
Td = 30us to 200us
(A): Confirm that READY is on, and input the START signal (1ms min.).
(B): When the START signal is input, READY goes off, and the image is captured.
(C): When the image capture is completed, the REND signal goes on.
(D): Output data (D1 to D8) is output, and then STROB is output (1 ms max. later).
16 − 24
T2
(D)
(F)
T4
(E)
T3
(C)
To
Td
(H)
(G)
To
Td
OCR Type A230
Post−processing
(I)
Td
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