Hitachi EH-150 Applications Manual page 146

Description
(1) The configuration of user memory
The configuration and address of the user
memory are shown in the diagram to the right.
Note: Obtain the HI-LADDER area head address using the following equation:
Head address = (H0280) + (HI-FLOW area capacity)
Obtain the HI-FLOW area capacity using the task code H35 "Read memory assignment".
(2) Description of each function
1] Parameter area (A) (subcommand H00)
Writes the designated data *1 in parameter area (A).
Note: After executing this command, always execute the task code H27, parameter change completion, when the
memory write processing is completed.
2] HI-FLOW area (subcommand H01)
Writes the designated program *1 to the HI-FLOW area.
Note: EH-150 does not support HI-FLOW.
3] HI-LADDER area (subcommand H02)
Writes the designated program *1 to the HI-LADDER area.
4] Parameter area (B) (subcommand H03)
Write the designated data *1 to parameter area (B).
The maximum capacity per write is 60 steps.
*1: For the designated data and program, use the data and program read using task code H31 "Program read with
address designation." If an invalid data or program is written, the CPU module may stop due to an error.
Appendix B Task Codes Specifications
User memory
H0003
Parameter area (A)
H0160
Parameter area (B)
H0280
HI-FLOW area
A
HI-LADDER area
A = H0280 + n steps
B-21
Parameter area
n steps