Mitsubishi Electric MELSEC Q Series User Manual page 103

(7) Precautions on interrupt processing
Interrupts are used for communications of the C Controller module.
These communications may be disabled if a program that disables interrupts is executed.
Also, communication may become slow if a program with frequent interrupts is executed.
(8) Precautions for using a MES interface module and Web server module
The following restrictions are applied to the MES interface module and Web server module controlled by the C
Controller module.
• Only the control CPU is accessible. (Multiple CPU setting and other station setting are not supported.)
• Do not set B device to 60K or higher points in the device function settings for the C Controller module using
a MES interface module with a serial number whose first five digits are "13092" or lower, or a Web server
module with a serial number whose first five digits are "14022" or lower. Otherwise, access to the B device is
denied.
• The dedicated instructions of Web server module are not supported.
(9) Precautions for using a High-speed data logger module
The following restrictions are applied to the High-speed data logger module controlled by the C Controller
module.
• Only the control CPU is accessible. (Multiple CPU setting and other station setting are not supported.)
• High-speed sampling is not available.
• Do not set B device to 60K or higher points in the device function settings for the C Controller module using
a High-speed data logger module with a serial number whose first five digits are "14062" or lower. Otherwise,
access to the B device is denied.
(10)Precautions for using a High Speed Data Communication Module
The following restrictions are applied to the High Speed Data Communication Module controlled by the C
Controller module.
• Only the control CPU is accessible. (Multiple CPU setting and other station setting are not supported.)
• High-speed sampling is not available.
(11)Precautions for access range of the multiple CPU system
For multiple CPU system, the access range varies among modules controlled by the host module (control
modules) and those controlled by the other modules (non-controlled modules).
Following accesses to non-controlled modules are defined:
• Output to the output module, I/O combined module and intelligent function module
• Writing to the buffer memory on the intelligent function module
For details, refer to the following manual.
QCPU User's Manual (Multiple CPU System)
(12) Precautions for using MODBUS
The following restrictions are applied to the MODBUS
• The dedicated instruction cannot be used.
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• The MODBUS device assignment cannot be used.
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interface module
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interface module controlled by the C Controller module.
CHAPTER 7 SYSTEM CONFIGURATION
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