Appendix B Task Codes Specifications
Task code
H31
Program read with address designation
Classification
Memory read
Function
Reads the designated number of program steps, starting with the designated address.
Execution condition
CPU
status
STOP RUN HALT
ERROR
{
{
{
{
READ occupancy
Occupancy
{
{
{
{
WRITE occupancy
status
Format
Request
H31
H00
(a)
(b)
(c)
(a) Dummy (must be fixed to H00)
(b) Head address (absolute address in the CPU module)
(c) Number of steps (H01 to H3C, 60 steps maximum)
Response
(a)
(b)
H31
(b)
1st step
Nth step
(a) Response task code (H00)
For task codes other than the normal task codes, refer to the “response list by task code” at the end of this chapter.
(b) Program
contents
Description
Request
H31
H00
Head address
Number of steps
H00
H31
1st step
2nd step
3rd step
1st step
2nd step
3rd step
User memory
Number of steps
Response
B-26