Chapter 6 Function of CPU Module
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6.9 I/O Module Skip
1) Purpose and Operation Overview
This is the function to exclude the module assigned during operation, from operation. For the assigned
module, it is disabled to update I/O data or diagnose the error from the assigned moment. It is allowed to use
only in case of temporary operation excluding the error part.
2) Setting Method and I/O Data Processing
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It is available to set by I/O module unit.
(For further information, please refer to XG5000 user’s manual.)
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As Input(I) image area stops input refresh, it keeps the value before skip setting. But, at this time, it is
effective to operate the image by forced On/Off.
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Actual output of output module shall be OFF in case of skip setting but output(Q) image area is changed
according to the user program operation regardless of skip setting. It is not allowed to operate output value
of output module by forced On/Off after skip setting.
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The execution of skip function when using direct I/O function is same.
3) Release of Skip Function
The skip of I/O module shall be released only by the same method as setting.
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Setting release from online menu of XG5000
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Automatic release in case the memory backup is broken by battery voltage falling
The Fault Mask shall be released even in the cases as below. Cares should be taken.
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Power Off
→
On
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Change of operation mode
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Program download
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Operation of reset key
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Data clear
1) When releasing a skip, if the error occurs in the corresponding module, the system may stop.
Release the skip in the state that the Fault Mask is set and check the normal operation of module
before releasing the skip.
Notes
