Yaskawa 120 Series I/O Modules - Manual (Page 113)

3.4 I/O Allocation
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Fig. 3.1 Allocation of Input Relays
When allocating input relays, the MEMOSOFT is set by default to “MSB.”
When input relay allocation is set to “MSB,” the leading reference number is allocated
to the smallest input number (input 1) on the Input Module.
(2) When input register 300001 is allocated, the bit order can be set to either
“MSB” or “LSB,” as described in the following table and shown in the illustration
below it.
Refer to Fig. 3.2 Allocation of Input Registers for details.
Fig. 3.2 Allocation of Input Registers
When allocating input registers, the MEMOSOFT is set by default to “LSB.”
When input register allocation is set to “LSB,” bit 15 (MSB) of the input register is
allocated to the smallest input number (input 1) on the Input Module.
Terminal number
Input signal
Input 1
MSB Setting LSB Setting
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
IMPORTANT
Input Register LSB Setting Bit 15 (MSB) of the input register (300001) is allocated to the
smallest input number (input 1) on the Input Module.
Input Register MSB Setting Bit 15 (MSB) of the input register (300001) is allocated to the larg-
est input number (input 16) on the Input Module.
Terminal number
Input signals
LSB Setting MSB Setting
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
IMPORTANT