Mitsubishi Electric melsec q00ujcpu User Manual page 243

(2) Setting for simultaneous monitoring from multiple GX Developers
Create a user setting system area in the following procedure.
• Selecting [Online]
• Select "Program memory/Device memory" in "Target Memory".
• Select "Create a user setting system area" in "Format Type".
• Set the number of steps for the system area (unit: 1K step).
Table6.28 shows the maximum number of steps settable in the system area.
1K step is available for a monitoring file from another station.
Maximum size of settable step
(3) Precautions
(a) Monitor condition setting
The monitor conditions can be set from one GX Developer.
(b)
Necessity of system area setting
Although multiple GX Developers in other stations can simultaneously monitor a CPU module without the user
setting system area, the monitor speed will be slow.
Since the system area is set in the program memory, the area for storing programs reduces by the size of set
system area.
(c) The number of GX Developers for which high-speed monitoring can be set
The number of GX Developers that can simultaneously monitor a CPU module at high-speed is "the number of
user setting system areas (the number of K steps) + 1".
For example, when user setting system area of 15K steps is created, maximum 16 GX Developers can
simultaneously monitor a CPU module at high-speed.
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[Format PLC memory] in GX Developer displays the screen shown in Figure 6.75.
Figure 6.75 System area setting (when 1K step is set)
Table6.28 Maximum size of steps settable in the system area
Maximum 15K steps
System area for monitoring from another station
Maximum 15