Yaskawa 120 Series I/O Modules - Manual (Page 124)

3 Digital I/O Specifications
3.4.5 16-point Output Modules
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When allocating output coils, the MEMOSOFT is set by default to “MSB.”
When output coil allocation is set to “MSB,” the leading reference number is allocated
to the smallest output number (output 1) on the Output Module.
b) 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.”
c) Timeout Output
The data that is output when the CPU Module changes from a running status to a
stopped status can be specified. Either of the following settings is possible.
(1) Final Data: The data that existed just before the CPU Module stopped.
(2) Set Data: Preset data.
The MEMOSOFT is set by default to SET DATA.
d) Timeout Output Data
The data that is output when the CPU Module stops (when set data is specified for
the timeout output) can be set. The data set here is an image of the PC reference
data. The data set here is converted and output in the order bits are set. The
MEMOSOFT is set by default to all zeros.
3.4.5 16-point Output Modules
1) Purpose of I/O Allocation
The relationship between I/O signals and I/O references must be defined so that the
CPU Module can input signals from input devices and output signals to output
devices. The following settings are necessary to define this relationship for Digital
Output Modules.
(1) Module Type
(2) I/O Reference Numbers
(3) I/O Data Format
Setting these items is performed in a process called I/O allocation. I/O allocation is
performed using the MEMOSOFT and the settings are recorded in the I/O allocation
tables stored in memory in the CPU Module.
Refer to the following manuals for specific setting procedures.
• MEOCON GL120, GL130 MEMOSOFT for P120 Programming Panel User’s
Manual (Manual No. SIEZ-C825-60.7), Chapter 7 Setting System Configuration.
• MEMOCON GL120, GL130 MEMOSOFT for DOS User’s Manual (Manual No.
SIEZ-C825-60.10), Chapter 7 Setting System Configuration.
• MEMOCON GL120, GL130 MEMOSOFT for Windows User’s Manual (Manual
No. SIEZ-C825-60.25), Chapter 6 Setting the Module Configuration.
IMPORTANT