APPENDICES
Appendix 4 Comparison between CC-Link IE controller network and MELSECNET/H
Appendix 4.2 Comparison of function
App
- 51
9
DE
DICA
T
E
D
INS
T
RUCT
IONS
10
T
R
OUB
L
E
S
HO
OT
IN
G
APPENDI
CES
INDEX
(2) Function added in CC-Link IE controller network
The following shows functions added in the CC-Link IE controller network.
(a) Cyclic transmission function
(b) Transient transmission function
(c) RAS function
(d) Diagnostic function
(e) Other functions
Table App.19 Function added (Cyclic transmission function)
Function
Description
Reference
section
Cyclic transmission punctuality assurance
Keeps the link scan time constant by making each station to send the
specified number of transient transmissions within one link scan.
Group cyclic transmission
A Universal model QCPU can share cyclic data only with stations in the
same shared group.
It does not receive cyclic data from stations in different shared groups.
Stations with no shared group setting will share cyclic data with all of the
stations.
Table App.20 Function added (Transient transmission function)
Function
Description
Reference
section
CC-Link
dedicated
instruction
Read/write of another station's
data
Reads or writes the specified number of data from or to the target station
device. (RIRD/RIWT instruction)
Table App.21 Function added (RAS function)
Function
Description
Reference
section
Cable fault detection
Communication error due to cable fault can be detected.
Cable insertion error detection
Loopback or disconnection from the network due to incorrect cable
connection between OUT and IN can be detected.
Table App.22 Function added (Diagnostic function)
Function
Description
Reference
section
Circuit test
Checks the network cable connection status, line status, and each station's
parameter setting status from the control station.
Table App.23 Function added (other functions)
Function
Description
Reference
section
Station No. setting by sequence program
For Universal model QCPUs, the station No. of a normal station (own
station) can be set in the sequence program. (UINI instruction)
Содержание QJ71GP21-SX
Страница 1: ......
Страница 2: ......
Страница 644: ...App 94 Appendix 6 External Dimensions Appendix 6 2 QJ71GP21S SX APPENDICES Memo ...
Страница 649: ......
Страница 650: ......