9. Settings
9-8
9.3.3 Output hold setting for digital output modules
This setting determines whether the output of the digital output modules in each unit is reset or held when an
error occurs in the CPU module. Errors that trigger this scenario include errors that prevent ladder logic from
operating in the CPU module, and disconnection of a remote I/O line in a PI/O unit.
The
RESET
setting turns output off, and the
HOLD
setting retains the output value that was in effect
immediately before the error occurred.
Note: The output hold setting is only valid for digital output modules. Analog output modules always operate
as if
HOLD
were specified.
■
Setting the digital output module hold setting for the CPU unit
For details on how to perform this setting, see the
S10VE Software Manual Operation Ladder Diagram
System for Windows®
(manual number SEE-3-131).
9.3.4 I/O point number setting
Set the number of I/O points of the installed PI/O modules, or of the PI/O modules you intend to install if the
number is greater.
If the system will incorporate PI/O modules with different numbers of I/O points, set the highest number
among the installed PI/O modules. For example, if the system has 16 point modules and 32 point modules, set
32 as the number of I/O points. In this case, I/O numbers for 32 I/O points are allocated to both module types.
However, the 16 point modules only use the first 16 numbers, with the latter 16 remaining unassigned. In
contrast, if you set 16 as the number of I/O points, I/O numbers are only assigned to the first 16 I/O points of
the 32 point modules.
■
Setting the number of I/O points of the CPU unit
For details on how to set the number of I/O points of the CPU unit, see the
S10VE Software Manual Operation
Ladder Diagram System for Windows®
(manual number SEE-3-131).
Output
(
RESET
)
Output
(
HOLD
)
During error
Off
Held
Error occurs
Recovery from error
Summary of Contents for S10VE
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