APPENDICES
Appendix 6 Precautions for Using Serial Communication Module
Appendix 6.7 OUTPUT Instruction
App - 48
9
PROCESSING TIME
FOR REDUNDANT
SYSTEMS
APPENDICESINDEX
Appendix 6.7 OUTPUT Instruction
The following shows the device and buffer memory used in the sample program of sending
data by the nonprocedural protocol communication.
(1) Device of programmable controller CPU
(2) I/O signal
(3) Buffer memory
Table.App 36 Device Used in the Program
Device No. Application Remarks
X50 Transmission command ON: Transmission completion
X60 Error reset command ON: Error reset
Table.App 37 List of I/O Signal
I/O signal
Signal name Description
CH1 side CH2 side
Xn0 Xn7
Transmission normal
completion
ON: Normal completion
Xn1 Xn8
Transmission abnormal
completion
ON: Abnormal completion
Xn2 Xn9 Transmission processing Transmission in progress
XnE XnF ERR. occurrence ON: Error occurring
X(n+1)E Q series C24 ready ON: Accessible
X(n+1)F
Watchdog timer error
(WDT error)
ON : Module error occurred
OFF: Module being normally
operated
Yn0 Yn7 Transmission request ON: Requesting transmission
Table.App 38 List of Buffer Memory
Buffer memory address Hexadecimal
(decimal )
Name Stored value
CH1 side CH2 side
257
H
(599) 267
H
(615)
Data transmission result
0 : Normal completion
1 or more: Abnormal completion
(error code)
400
H
(1024) 800
H
(2048)
Transmission data count
designation
0: No designation
1 or more: Number of send data
401
H
to
5FF
H
(1025 to 1535)
801
H
to
9FF
H
(2049 to 2559)
Transmission data
designation
Data to be sent to an external
device
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