Multiple-User Monitoring Function - Mitsubishi Electric MELSEC-Q Series User Manual

7 FUNCTION

7.10 Multiple-user monitoring function

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(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 Basic 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. (Setting of station monitor
file is not necessary.)
(2) Operation Procedure
(a) For multi-user monitoring operation, create a user-defined system file in the
following steps.
1) Choose "Online"
Memory dialog box.
2) Select "program memory" from the Target Memory list box.
3) In the Format 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 figure below 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) 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 reduced when the system area is set.
(b) Once the user-defined system area is allocated, a single PLC will be
accessible from 16 stations.
"Format PLC Memory" to open the Format PLC
MELSEC-Q
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