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Chapter 6. Service Request Function
6.15 SVC_REQ 14: Clear Controller or I/O Fault Table
Use SVC_REQ 14 to clear either the Controller Fault Table or the I/O Fault Table. The SVC_REQ
output is set ON unless some number other than 0 or 1 is entered as the requested operation.
The parameter block has a length of 1 word. It is an input parameter block only. There is no output
parameter block.
Address 0 = clear Controller Fault Table
1 = clear I/O Fault Table
SVC_REQ 14 Example
When inputs %I0346 and %I0349 are on, the Controller Fault Table is cleared. When inputs %I0347
and %I0349 are on, the I/O Fault Table is cleared. When input %I0348 is on and input %I0349 is on,
both are cleared. Positive transition coils V_M00001 and V_M00002 are used to trigger these service
requests to prevent the fault tables from being cleared multiple times.
The parameter block for the Controller Fault Table is located at %R0500; for the I/O Fault Table the
parameter block is located at %R0550.
Note: Both parameter blocks are set up elsewhere in the program.
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PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual
GFK-2950C
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