Hitachi EH-150 Applications Manual page 151

Task code H31
Function
Reads the designated number of program steps, starting with the designated address.
Execution condition
CPU status
STOP RUN
Format
Request
H00
H31 (b)
(a)
(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) H31
(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
User memory
1st step
Number of steps
2nd step
3rd step
Program read with address designation
HALT ERROR
(c)
(b)
1st step
Head address Number of steps
Response
H00 H31
B-26
Appendix B Task Codes Specifications
READ occupancy Occupancy
WRITE occupancy status
(b)
Nth step
1st step 2nd step 3rd step
Classification Memory read