22 PARAMETER REGISTRATION TO CPU MODULE
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22 PARAMETER REGISTRATION TO CPU
MODULE
C24 enables the parameter settings to be saved in the CPU module.
It reduces man-hours for any recovery works since the parameter resetting is not necessary at the time of replacement of
C24.
The parameters controlled by the CPU module are as shown below.
*1 It indicates a file name to store the parameters in CPU built-in memory or SD memory card.
*2 The value indicating the head input/output number of the module 10H (3 digits in hexadecimal) is entered in 'mmm'.
*3 The sequential serial number of each module, 00 is entered in 'nn'.
For more details on parameters controlled by CPU modules, refer to the following manual.
MELSEC iQ-R CPU Module User's Manual (Application)
The parameters controlled by C24 parameter corresponding to CPU module are as shown below.
Each file of module extended parameters held in the CPU module is given priority over the one in the flash ROM of C24.
The contents in flash ROM of C24 is replaced with the contents of module extended parameters registered in the CPU module
by powering OFF ON or switching the CPU module STOP RUN after the module extended parameters were registered
in the CPU built-in memory or SD memory card.
Parameters name Storage location of parameters File name
*1
Module parameter CPU built-in memory (data memory) UNIT.PRM
Module extended parameter Select from the following for each file.
• CPU built-in memory (data memory)
• SD memory card installed in the CPU
• Built-in memory of Intelligent function module (in
the flash ROM of C24)
UEXmmmnn.PRM
*2,*3
UEXmmm00.PPR
*2
Corresponding parameter controlled by
CPU module
Parameter of C24 Remarks
Module parameter Basic settings Various control specification
Application
settings
User frame specification "User frame contents" is stored in the
module extended parameter.
Modem function setting "Modem initialization data" and "Modem
connection data" are stored in the module
extended parameters.
Programmable controller CPU
monitoring function designation
Interrupt settings
Refresh setting
Module extended parameter User frame contents File name: UEXmmmnn.PRM
Modem initialization data
Modem connection data
Protocol setting data File name: UEXmmm00.PPR
This is set with the Predefined protocol
support function of Engineering tool.
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