6
- 4
6.1 Function List
6
FUNCTIONS
: Supported, : Not supported
* 1 : When using these functions in the Universal model QCPU, check the versions of CPU module
and GX Developer. (
* 2 : The Basic model QCPU and Universal model QCPU do not support the system protect using DIP
switches.
* 3 : Refer to the following manual
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
* 4 : Refer to the following manual.
QnPHCPU/QnPRHCPU Programming Manual (Process Control Instructions)
* 5 : Refer to the following manual.
QnPRHCPU User's Manual (Redundant System)
Table6.2 CPU module function list (Continued)
Item
Description
CPU module
Reference
1)
2)
3)
4)
5)
Online module change
Replaces the Q series I/O module, the intelligent
function module of function version C, or the I/O
module or intelligent function module mounted on a
MELSECNET/H remote I/O station or an extension
base unit online.
In a redundant power supply system, the power
supply module can also be changed online.
*3
Auto tuning function
Makes the initial setting of the PID constants. Auto
tuning can be used for the process with relatively
slow response such as temperature adjustment in the
loop that uses the S.PID or S.2PID instruction.
*4
Redundant function
Configures a redundant system including two sets of
CPU modules, power supply modules, network
modules or main base units.
*5
System switching (between
control system and standby
system) function
Control system and standby system (switches the
control system to the standby system or the standby
system to the control system).
There are two different methods: system switching
and user switching.
Operation mode change
Changes between the separate mode and backup
mode.
Tracking function
Used to share data between the control system and
standby system. (Transfers the control system data
to the standby system.)
If system switching occurs at the time of a control
system failure or error, control can be continued with
the same data.
Redundant online change function
Transfers the data, which was written to the control
system by write to PLC or online change, to the
standby system.
Memory copy from control system
to standby system
Copies the program memory contents of the control
system to the standby system.
(When the standby system CPU module is replaced,
the program memory contents of the control system
and standby system can be matched.)
There are two different methods: by GX Developer
and by special relay and special register.
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