Appendix B Task Codes Specifications
Task code H42 Forced set/reset with I/O number designation
(N continuous points)
Classification I/O control
Function
Forcibly sets and resets the designated data in N continuous points (words) of data area, starting with the designated I/O.
Execution condition
CPU status
STOP RUN HALT ERROR
{ { { { READ occupancy Occupancy
{ { { { WRITE occupancy status
Format
Request
H42 (a) (b) (c) (d)
(a) I/O code
(b) I/O number
(c) Number of bits
H01 to HC8 (1 to 200)
Number of words
H01 to H64 (1 to 100)
*1: Refer to the task code H40
(d) Set/reset data
(d) Set/reset data
(Bit data)
Number of points/8
1st point
2nd point
8th point
bit7 0
Binary image (H00 to HFF)
*1
When the number of set/reset points is less than
8 points, set 0 to the open bits.
(Word data)
Binary image (H0000 to HFFFF)
HL
1st word Nth word
Word number value
Response
(a) H42
(a) Response task code (H00 when executed normally)
For task codes other than the normal task codes, refer to the “response
list by task code” at the end of this chapter.
* The EH-150 returns “H00” (normal execution) even for I/Os that are
out of range.
B-35
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