3) i/o reference number setting, 4) parameter setting – Yaskawa 120 Series I/O Modules User Manual
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5.3 I/O Allocation
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3) I/O Reference Number Setting
The following table shows the I/O reference numbers and points that can be allo-
cated.
4) Parameter Setting
a) Service Scan: Normal/High-speed
Two types of service scans are available: normal and high-speed. A service scan
is recommended when using the high-speed segment function. The I/O module is
activated before the ladder decoding of the high-speed segments. The I/Os that are
processed in synchronization with the high-speed scan are called High-speed Seg-
ment I/Os. The MEMOSOFT is set by default to “NORMAL.”
b) Mode
The number of data input from the Register Input Module can be set.
Either 8CH or 16CH can be set.
The MEMOSOFT is set by default to “16CH.”
c) Cycle
The reading cycle of input data can be set.
Any of six cycles listed in the following table can be set according to the set mode.
The MEMOSOFT is set by default to 32/64 ms.
When a specified value is set for the cycle, the values of Timing T1 and T2 are set
according to the set cycle.
The following table shows the values of Select Timings when a specified value is
selected for the cycle.
Type of Input
References for I/O Allocation
Number of Registers
CPU10, CPU20, CPU21
CPU30, CPU35
Input registers
30001 to 300512
300001 to 300512
1 to 16 registers
Table 5.1 Cycles
Mode
8CH
16CH
Cycle
10 ms
20 ms
32 ms
64 ms
64 ms
128 ms
192 ms
384 ms
320 ms
640 ms
User set
User set
Table 5.2 Select Timing When a Specified Value is Selected for Cycle
Mode
Timing
8CH
16CH
T1
T2
10 ms
20 ms
0.9 ms
0.4 ms
32 ms
64 ms
3.5 ms
0.5 ms
64 ms
128 ms
7.0 ms
1.0 ms
192 ms
384 ms
21.0 ms
3.0 ms
320 ms
640 ms
35.0 ms
5.0 ms