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3.1.3 Available I/O modules and intelligent function modules
This section describes I/O modules and intelligent function modules that can be used.
(1) I/O modules and interrupt module
I/O modules (QX and QY) and interrupt module (QI60) can be used. Any CPU module can be set as a control
CPU.
(2) Intelligent function modules
Intelligent function modules with function version B or later can be used. Any CPU module can be set as a control
CPU.
Write parameters of each intelligent function module to the CPU module to be controlled.
The following modules can be used even if their function version is not B or later.
Remark
Intelligent function modules with function version A (except high-speed counter modules (QD62, QD62D, and QD62E)) can
be used in the multiple CPU system only when CPU No.1 is set as a control CPU.
• External devices can access only the control CPU (CPU No.1) via a serial communication module.
• External devices cannot access CPU modules other than the control CPU (CPU No.1) via a MELSECNET/H
module or serial communication module.
• If any of CPU No.2 to No.4 is set as a control CPU, "SP.UNIT VER.ERR" (error code: 2150) will occur and the
multiple CPU system will not start up.
(3) Number of mountable modules
Refer to Page 68, Section 3.5.
(4) Access ranges of controlled and non-controlled modules
Each CPU module can access non-controlled modules by setting "I/O Sharing When Using Multiple CPUs" in
PLC parameter ("Multiple CPU Setting"). ( Page 104, Section 5.2)
If all of the following conditions are met, use a MELSECNET/H module with a serial number (first five digits) of "10042" or
later.
• A multiple CPU system containing a Built-in Ethernet port QCPU is configured.
• A programming tool or GOT is connected to an Ethernet port of the Built-in Ethernet port QCPU.
• A programming tool or GOT accesses another station via a MELSECNET/H module controlled by a CPU module
other than the control CPU.
• The access target on another station is an A/QnA series CPU module.
Module that can be used
even if its function version is not B or later
Description
High-speed counter module (QD62, QD62D, QD62E)
Modules with function version A can be used.
Any CPU module can be set as a control CPU.