Instruction manual
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2 STARTING UP THE MULTIPLE CPU SYSTEM
2.3 Differences Between Real Mode and Virtual Mode
Specifications of the positioning data, positioning devices and servo programs, etc.
used in the real mode differ in part in the virtual mode.
When using them in the virtual mode, refer to the "Q173DCPU/Q172DCPU Motion
controller (SV13/SV22) Programming Manual (REAL MODE)" after checking about a
different point in the real mode.
2.3.1 Positioning data
Positioning data used in the virtual mode are shown in Table 2.1 below.
Table 2.1 Positioning Data List
Item Real mode Virtual mode Remark
System settings
Fixed parameters
Usable units differ according to
the output module.
Servo parameters
Parameter blocks
Only [PLS] usable.
Home position return data
JOG operation data
Limit switch output data
: Used
: Used (Restrictions in part)
: Not used
2.3.2 Positioning devices
The operating ranges of positioning devices used in virtual mode are shown in Table
2.2 below.
Table 2.2 Operating Range of Positioning Devices
Device name Real mode Virtual mode
Internal relays
M2000 to M3839
M4640 to M4687
M5440 to M5487
M2000 to M5487
Special relays SM0 to SM2255
Data registers
D0 to D799
D1120 to D1239
D0 to D1559
Motion registers #8000 to #8735
Special registers SD0 to SD2255