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MELSEC-Q
3 SPECIFICATIONS
3.8 List of Input/Output Signals for the Programmable Controller CPU
This section describes the input/output signals of the Q series C24.
The following I/O signal assignment is based on the case where the start I/O No. of the
Q series C24 is "0000" (installed to slot 0 of the main base unit).
Device numbers starting with X indicate input signals from the Q series C24 to the
programmable controller CPU.
Device numbers starting with Y indicate output signals from the programmable
controller CPU to the Q series C24.
The following table lists the input/output signals for the programmable controller CPU.
Device
number
Signal description
Reference
section
Device
number
Signal description
Reference
section
X0
1
CH1 Transmission normal completion
ON: Normal completion
Y0
CH1 Transmission request
ON: Requesting transmission
X1
1
CH1 Transmission abnormal completion
ON: Abnormal completion
Y1
CH1 Reception data read completion
ON: Data read completed
—
X2
1
CH1 Transmission processing
ON: Transmission in progress
Section 9.6.4
Section 9.6.5
Section 9.6.6
Y2
CH1 Mode switching request
ON: Requesting switch
Application
X3
2
CH1 Reception data read request
ON: Requesting read
Y3
X4
2
CH1 Reception abnormal detection
ON: Abnormal detection
Section 6.1
Section 7.1
Section 9.6.5
Section 9.6.6
Y4
X5
(For system)
—
Y5
X6
3
CH1 Mode switching
ON: Switching
Application Y6
Use prohibited
—
X7
1
CH2 Transmission normal completion
ON: Normal Completion
Y7
CH2 Transmission request
ON: Requesting transmission
X8
1
CH2 Transmission abnormal completion
ON: Abnormal completion
Y8
CH2 Reception data read completion
ON: Data read completed
—
X9
1
CH2 Transmission processing
ON: Transmission in progress
Section 9.6.4
Section 9.6.5
Section 9.6.6
Y9
CH2 Mode switching request
ON: Requesting switch
Application
XA
2
CH2 Reception data read request
ON: Requesting read
YA
XB
2
CH2 Reception abnormal detection
ON: Abnormal detection
Section 6.1
Section 7.1
Section 9.6.5
Section 9.6.6
YB
XC (For
system)
—
YC
XD
3
CH2 Mode switching
ON: Switching
Application YD
Use prohibited
—
XE
CH1 ERR. occurrence
ON: Error occurring
YE
CH1 ERR.clear request
ON: Requesting error clear
XF
CH2 ERR. occurrence
ON: Error occurring
Section 9.6.11
Section 11.1.2
YF
CH2 ERR. clear request
ON: Requesting error clear
Section 9.6.11
Section 11.1.2
X10
6
Modem initialization completion
ON: Initialization completed
Y10
6
Modem initialization request (standby request)
ON: Requesting initialization
X11
6
Dialing
ON: Dial in progress
Y11
6
Connection request
ON: Requesting connection
X12
6
Connection
ON: Connection in progress
Y12
6
Modem disconnection request
ON: Requesting disconnection
Section 9.6.2
Application
X13
6
Initialization/connection abnormal completion
ON: Initialization/ connection abnormally completed
Y13 Use
prohibited
—
X14
6
Modem disconnection complete
ON: Disconnection completed
Y14
6
Notification- issued request
OFF: Requesting notification issuance
X15
6
Notification normal completion
ON: Normal completion
Y15
X16
6
Notification abnormal completion
ON: Abnormal completion
Section 9.6.2
Application
Y16
Use prohibited
—
X17
1 Flash ROM read completion ON: Completed
Y17
Flash ROM read request ON: Requesting
X18
1 Flash ROM write completion ON: Completed
Y18
Flash ROM write request ON: Requesting
X19
Flash ROM system setting write completion
ON: Completed
—
Y19
Flash ROM system setting write request
ON: Requesting
—
Summary of Contents for MELSEC QJ71C24
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Page 103: ...3 42 3 42 MELSEC Q 3 SPECIFICATIONS MEMO ...
Page 177: ...6 33 6 33 MELSEC Q 6 DATA COMMUNICATION USING THE NON PROCEDURE PROTOCOL MEMO ...
Page 397: ...App 24 App 24 MELSEC Q APPENDIXES Connection example 3 Connection example 4 ...
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