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GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-157
4
In the first byte of word address + 1, the Long/Short indicator defines the quantity of fault specific
data present in the fault entry. It may be:
PLC Fault Table: 00 = -8 bytes (short)
01 = 24 bytes (long)
I/O Fault Table: 02 = —5 bytes (short)
03 = 21 bytes (long)
Example 1:
In the following example, when input %I0251 is on and input %I0250 is on, the last entry in the
PLC fault table is read into the parameter block. When input %I0251 is off and input %I0250 is on,
the last entry in the I/O fault table is read into the parameter block. The parameter block is located
at location %R0600.
| _____
|%I0250 %I0251 | |
|——| |—————| |———|MOVE_|
| | |
| | INT |
| | |
| CONST —|IN Q|– %R0600
| 0000 | LEN |
| | 0001|
| |_____|
|
| _____
|%I0250 %I0251 | |
|——| |—————|/|———|MOVE_|
| | |
| | INT |
| | |
| CONST —|IN Q|— %R0600
| 0001 | LEN |
| | 0001|
| |_____|
|
| _____
|ALW_ON | |
|——| |———| SVC_|—
| | |
| | REQ |
| | |
| CONST —|FNC |
| 0015 | |
| | |
|%R0600 —|PARM |
| |_____|
|