2-2 general-purpose input (di0 to di7), I/o interf ace, 2 input signal description – Yamaha SRCP User Manual
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3-
6
3
I/O INTERF
ACE
3-2 Input Signal Description
3-2-2 General-purpose input (DI0 to DI7)
These general-purpose inputs are available to users for handling data input in a program.
These inputs are usually connected to sensors or switches. These inputs can also be directly con-
nected to a PLC output circuit.
As a special function during execution of an ABS-PT or INC-PT point movement command, these
general- purpose inputs can be used to specify the point numbers and movement speed.
The number of general-purpose input (DI) points used to specify the point numbers and speed differs
depending on whether SERVICE mode is enabled or disabled and also on the PRM7 (I/O point
movement command speed parameter) setting.
For example, when PRM7 is 100 in normal mode (SERVICE mode disabled), the point numbers
should be input in binary code with DI0 to DI7 to specify P0 to P255 as shown in the table below.
If PRM7 is 0 in normal mode (SERVICE mode disabled), then point numbers should be input with
DI0 to DI5 in binary code to specify P0 to P63 as shown in the table below. The movement speed is
specified as 100% when both DI6 and DI7 are off. In other cases, it is set to the speed specified by the
parameter. (See "5-2 Parameter Description".) Also see the tables below for more details.
NORMAL mode
(SERVICE mode disabled)
SERVICE mode enabled
PRM7
100 (default setting)
1 to 99
0
100 (default setting)
1 to 99
DI used to specify point numbers
DI7 to DI0 (256 points)
DI6 to DI0 (128 points)
DI5 to DI0 (64 points)
DI6 to DI0 (128 points)
DI5 to DI0 (64 points)
DI used to specify speed
Not specified
DI7
DI7, DI6
Not specified
DI6
Speed setting method
100%
Speed setting pattern 2
Speed setting pattern 1
100%
Speed setting pattern 3
DI No.
Point No.
P0
P1
P3
P7
P15
P31
P63
P127
P254
P255
DI7
(2
7
)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
DI6
(2
6
)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
DI5
(2
5
)
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
DI4
(2
4
)
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
DI3
(2
3
)
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
DI2
(2
2
)
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
DI1
(2
1
)
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
DI0
(2
0
)
OFF
ON
ON
ON
ON
ON
ON
ON
OFF
ON
Example of point number setting
DI7
DI6
OFF
ON
OFF
ON
Movement speed
100%
PRM41
PRM42
PRM43
OFF
OFF
ON
ON
Speed setting pattern 1
DI7
Movement speed
100%
PRM7
OFF
ON
Speed setting pattern 2
DI6
Movement speed
100%
PRM7
OFF
ON
Speed setting pattern 3
Example of point movement speed setting
* DI7 functions as the SERVICE mode input when the SERVICE mode function is enabled.
In this case, DI0 to DI6 can be used as the general-purpose inputs.