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MELSEC-Q
7 FUNCTION
7.13.1 Multiple-user monitoring function
(1) What is Multiple-User Monitoring Function?
(a) The multiple-user monitoring operation can be performed by operating from
multiple GX Developers connected to the High Performance model QCPU
or the Serial communications module.
(b) Multiple users can monitor at the same time. By setting a station monitor
file, high speed monitoring can be performed. (It is not necessary to set
host station monitor file.)
(2) Operation Procedure
(a) For multi-user monitoring operation, create a user-defined system file in the
following steps.
1) Choose "Online"
"Format PLC Memory" to open the "Format PLC
Memory" dialog box.
2) Select "program memory" from the "Target Memory list box".
3) At the "Format Type" section, select "Create a user setting system
area..." so that its radio button is checked.
4) Specify the desired k steps in the "System Area" text box.
(b) The follwing figure illustrates an example in which "1k step" is specified in
the "System Area" text box.
1) A maximum of 15 k steps can be set in 1 k step modules as a system
area. Only 1 k step can correspond to one station monitor file.
Therefore, a maximum of 15 station monitor files can be set.
(3) Precautions
(a) The detailed condition setting of the monitor can only be set from one area.
(b) Monitoring can be performed even if a station monitor file is not set, but high
speed monitoring cannot be performed.
The system area is in the same area as the program memory, so the area
of the stored program decreases when the system area is set.
(c) Once the user-defined system area is allocated, a single PLC can be
accessed from 16 stations.
Содержание QCPU (Q Mode)
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