Modbus(R) Device Assignment To The Programmable Controller Cpu Device Memory - Mitsubishi QJ71MB91 User Manual

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7
PARAMETER SETTING
7.3.1 MODBUS(R) device assignment to the programmable controller CPU
device memory
(1) MODBUS device size
Remark
7
- 13
7.3 MODBUS(R) Device Assignment Parameter

7.3.1 MODBUS(R) device assignment to the programmable controller CPU device memory

The MODBUS
devices available for the QJ71MB91 are shown below.
MODBUS
device type
Coil
Input
Input register
Holding register
Extended file register
* 1 The availability of Extended file register read/write depends on that of the file register (ZR) read/
write to the programmable controller CPU.
For example, if the file register (ZR) is stored on a Flash card, the extended file register is read only
because the file register (ZR) is read only.
User's Manual (Function Explanation, Program Fundamentals) for the CPU module used
* 2 The maximum access points and maximum file number of the extended file register depend on the
file register (ZR) assignment size of the programmable controller CPU.
User's Manual (Function Explanation, Program Fundamentals) for the CPU module used
Refer to the following for assignment of the extended file register and the
programmable controller CPU file register (ZR).
Section 7.3.2
Table7.5 MODBUS
device size
Read/Write
Access points
Read/Write
65536 points
Read
65536 points
Read
65536 points
Read/Write
65536 points
(*1)
4184064 points
MODBUS
device number
000001 to 065536
100001 to 165536
300001 to 365536
400001 to 465536
*2
File No.: 0 to 418
*2
600000 to 609999

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