FP2−CCU | Confirming Unit Settings and Design Contents |
3.2 Confirming the I/O Allocation and Root No.
3.2Confirming the I/O Allocation and Root No.
3.2.1I/O Allocation
A 16 points (16SE) I/O number is automatically allocated to the slot in which the Computer Communication Unit is installed.
This can be changed to 0 point (0SE) if desired, using tool software.
Computer Communication Unit
input unit | output unit | output unit |
16−point | 16−point | 16−point |
CPU unit
X0 Y10 Y20
to to to
XF Y1F Y2F (WX0) (WY1) (WY2)
CCU
SD RD ERR SD RD ERR COM.1 COM.2
COM.1(RS232C)
COM.2(RS232C)
16−point output unit
Y40 to Y4F (WY4)
30 to 3F are occupied.
Notes
•If there are any empty slots between the CPU unit and the
Computer Communication Unit, check to see if an I/O area has been allocated for the empty slot(s).
•When I/O mount allocations are made, or automatic allocation
is carried out, 16 points are automatically allocated to each empty slot.
•If the CPU unit being used is a dual−module type, make sure
any occupied I/O areas incorporated in the CPU unit are also checked.
For information on I/O allocations, please refer to the “FP2/FP2SH Hardware Manual”.
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