GE PACSystems RX7i - Page 349

Chapter 6. Service Request Function
334 PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual GFK-2950C
SVC_REQ 56 Example
The following LD logic reads ten continuous bytes written to nonvolatile storage from %G1—%G80
into %G193—%G273. The value applied to IN1, 56, selects byte mode.
The parameter block starts at %R00040. The response words are returned to %R00049 and
%R00050.
Parameter Block for SVC_REQ 56 Example
Address + Offset
Address
Input Value
Definition
Address+0
%R00040
56
Data type = %G (byte mode)
Address+1
%R00041
0
Address written from, low word
Address+2
%R00042
0
Address written from, high word
Address+3
%R00043
10
Length = 10 bytes
Address+4
%R00044
56
Data type to write to = %G (byte mode)
Address+5
%R00045
24
Address to write to, low word
Address+6
%R00046
0
Address to write to, high word
Address+7
%R00047
0
Storage disabled conditions are enforced
Address+8
%R00048
0
Reserved, must be set to 0
Address+9
%R00049
NA
Response status.
Address+10
%R00050
NA
Response count.