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(3) Scan input (CF35)
An example of the scan output circuit manufactured by the machine manufacturer is shown below.
Refer to section 5.4.3 Scan IO connector for the connector pin assignments.
CF35
KYCO∗
KYC1∗
KYC2∗
KYC3∗
KYC4∗
KYC5∗
KYC6∗
KYC7∗
KYD7∗
KYD6∗
KYD5∗
KYD4∗
KYD3∗
KYD2∗
KYD1∗
KYD0∗
Note) Connect a lead-in preventing diode to the scan input as shown below.
If a lead-in preventing diode is not inserted, the input signals may not be read in correctly.
The scan input changes the common signals as shown below. The key input data is retrieved when
the common signal is Low. The common signal changeover cycle is 11.68ms, and the data is
retrieved when the key switch is ON for 11.68ms or more. The scan input is a 5V system.
KYCO*
KYC1∗
KYC2∗
KYC3∗
KYC4∗
KYC5∗
KYC6∗
KYC7∗
CHAPTER 5 CONNECTION OF I/O INTERFACE
5.4 Scan I/O
X07
X06
X05
X0F
X0E
X0D
X17
X16
X15
X1F
X1E
X1D
X27
X26
X25
X2F
X2E
X2D
X37
X36
X35
X3F
X3E
X3D
<Exampl e of circui t manuf actured by machi ne manuf acturer>
KYC0∗
~KYC7∗
KYD0∗
~KYD7∗
11.68ms
X04
X03
X02
X0C
X0B
X0A
X14
X13
X12
X1C
X1B
X1A
X24
X23
X22
X2C
X2B
X2A
X34
X33
X32
X3C
X3B
X3A
Read-in preventing
diode
1.46ms
69
X01
X00
X09
X08
X11
X10
X19
X18
X21
X20
X29
X28
X31
X30
X39
X38
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