GE Industrial Solutions HE300GEN251 - Manual (Page 34)

CH. 5: PLC CONFIG 23 SEP 1999 PAGE 35
d. Output References (Output 1 Ref, Output 2 Ref)
These parameters specify where the AV-300i directed control data is mapped in Series 90-30 memory.
Legal reference types for these parameters are %Q, %G, %AQ, and %R. As you can see, the directed
data input by the GEN250/251can be divided into two different areas of PLC memory. For instance, part
of the global data could be mapped into %Q, and the remainder into %AQ. Two non-consecutive areas
of the same reference type could also be mapped. For instance, part of the directed data could be
mapped to %R1, and the remainder to %R500.
e. Output Length (Output 1 Len, Output 2 Len)
These parameters specify how much directed data is received by the SBI. If the Output Reference
specified is bit-type (%Q, %G), the length parameter is in bits. If the Output Reference specified is word
type (%AQ, %R), the length parameter is in words. The total amount of data mapped from the Series 90-
30 must exactly match the total amount of global data received by the SBI.