Denso RC5 Spécifications Page 71

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[ 4 ] Status Area
This section describes the usage of the status area (16 bits, output) and of
status area odd parity (output).
(1) Function
The signal outputs the result of I/O command processing to the external
device.
(2) Terminal numbers
Nos. 17 to 32 of connector CN10.
(3) Usage
The signal is used to execute an I/O command and obtain the result of the
PLC.
(4) ON conditions
When processing of the I/O given is completed, the status corresponding
to the command will be set.
"ON" represents the bit value = 1.
"OFF" represents the bit value = 0.
"Parity bit" is odd parity.
Input 1 or 0 as the parity bit so that the total of 1s existing in the
command area and status area parity will be odd.
The status area counts even commands, which do not require any data area,
in a parity calculation.
Parity can be set valid or invalid with a parameter. When parity is invalid,
no parity check will be performed.
(5) OFF conditions
The signal will be turned OFF when the strobe signal is turned OFF.
If the strobe signal is turned OFF, before command processing is
completed, the status signal will be output and then turned OFF within
100 msec.
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