Mitsubishi MELSEC Q Series User Manual

13
MULTIPLE CPU SYSTEM CONCEPT
13.5 Access to MELSECNET/H Module Link Devices
13 - 22
9
UTILITY OPERATION
10
FUNCTIONS AND PROGRAMMING
11
OVERVIEW OF MULTIPLE CPU SYSTEM
12
MULTIPLE CPU SYSTEM CONFIGURATION
13
MULTIPLE CPU SYSTEM CONCEPT
14
COMMUNICATIONS BETWEEN CPU MODULES
15
PARAMETERS ADDED FOR MULTIPLE CPU
16
PRECAUTIONS FOR USE OF AnS SERIES MODULE
13.5 Access to MELSECNET/H Module Link Devices
Access to the MELSECNET/H module link devices by a user program is executable for the
control CPU only.
The MELSECNET/H module controlled by another CPU cannot be accessed by a user
program.
If such access is attempted, a non-controlled module read error (return value: -28633) or
non-controlled module write error (return value: -28654) occurs.
However, via MELSECNET/H, the MELSECNET/H module controlled by another CPU can
be accessed by a user program. ( Section 10.3.12 (3))
Figure 13.24 Access to MELSECNET/H module link devices
1 1 1 1
22
Inaccessible
Accessible
Control CPU setting
Slot number
CPU 0 1 2 3 4
Network modules

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English