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4.3
I/O Allocation
This section describes I/O allocation for the 120-series Analog I/O Modules.
4.3.1
Analog Input Modules
1) I/O Allocation
The relationship between I/O signals and I/O references must be defined so that the
CPU Module can input signals from input devices and output signals to output
devices. The following settings are necessary to define this relationship for Analog
Input Modules.
• Module Type
• I/O Reference Numbers
• I/O Data Format
Setting these items is performed in a process called I/O allocation. I/O allocation is
performed using MEMOSOFT and the settings are recorded in the I/O allocation
tables stored in memory in the CPU Module.
Refer to the following manuals for specific setting procedures.
• MEOCON GL120, GL130 MEMOSOFT for P120 Programming Panel User's
• MEMOCON GL120, GL130 MEMOSOFT for DOS User's Manual (Manual No.
• MEMOCON GL120, GL130 MEMOSOFT for Windows User's Manual (Manual
a) Module Type Setting
The type of Input Module mounted in the slot is set as the Module type. Only the last
11 alphanumeric characters of the model number are necessary. For example
120AVI02000 is the Module type for the JAMSC-120AVI02000.
b) I/O Reference Number Setting
(1) The leading I/O reference number used by the Input Module is set.
(2) Five continuous I/O registers are allocated. The I/O reference numbers and
4.3.1 Analog Input Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-35
4.3.2 Analog Output Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-39
Manual (Manual No. SIEZ-C825-60.7), Chapter 7 Setting System Configuration.
SIEZ-C825-60.10), Chapter 7 Setting System Configuration.
No. SIEZ-C825-60.25), Chapter 6 Setting the Module Configuration.
points that can be allocated are listed in the following table.
Type of Input
CPU10, CPU20, CPU21
Input registers
300001 to 300512
4-35
References for I/O Allocation
CPU30, CPU35
300001 to 300512
4.3 I/O Allocation
4
Number of
Registers
5 registers
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