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3.3

I/O Signals Transferred to/from the CPU Module

This section describes the I/O signals of the Q64TCN.

3.3.1

I/O signal list

This section describes the assignment and applications of the Q64TCN input signals.
When the Q64TCTTBWN or Q64TCRTBWN is used, the device numbers of the I/O signals increase by 16 points
depending on how many empty points the left-hand side slots have. Therefore, I/O signals are given as indicated
below in this manual. Read them according to the module used.

Ex.

When 0 is set as the start I/O number, Yn1 is assigned as follows.
When the Q64TCTTN or Q64TCRTN is used: Y1
When the Q64TCTTBWN or Q64TCRTBWN is used: Y11

(1) Input signal list

Available only under the heating-cooling control (expanded mode). For details on the expanded mode, refer to

Page 164, Section 4.1 (3).

Available only under the mix control (expanded mode). For details on the expanded mode, refer to

Page 164,

Section 4.1 (3).

Input signal (Signal direction: CPU module

 Q64TCN)

Device No.

Standard control

Heating-cooling control

Mix control

Xn0

Module READY flag

Xn1

Setting/operation mode status

Xn2

Write error flag

Xn3

Hardware error flag

Xn4

CH1 Auto tuning status

Xn5

CH2 Auto tuning status

Xn6

CH3 Auto tuning status

Xn7

CH4 Auto tuning status

Xn8

PROM write completion flag

Xn9

Default value write completion flag

XnA

PROM write failure flag

XnB

Setting change completion flag

XnC

CH1 Alert occurrence flag

XnD

CH2 Alert occurrence flag

XnE

CH3 Alert occurrence flag

XnF

CH4 Alert occurrence flag