GE manual GFK-0467K Series 90-30/20/Micro Instructions Set 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
	_____

GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-157