Mitsubishi Electric MELSEC-Q Series User Manual page 215

Hide thumbs Also See for MELSEC-Q Series:

Table of Contents

Default value

Start history pointer

Indicates a pointer No. that is next to the pointer No. assigned to the latest of the existing starting history records.

Start information

Start Year: month

Start Day: hour

Start Minute: second

Error judgment

Each group of buffer memory addresses storing a complete starting history record is assigned a pointer No.

Example: Pointer No. 0 = Buffer memory addresses 4012 to 4016, 4240

Each history record is assigned a pointer No. in the range between 0 and 15.

If the pointer No. 15 has been assigned to a new record, the next record will be assigned the pointer number 0.

(A new record replaces an older record when a pointer No. is reassigned.)

Buffer memory address

4012 4017 4022 4027 4032 4037

4021 4026 4031 4036 4041 4046 4051 4056 4061 4066 4071 4076 4081 4086 4091

Pointer No. 1 = Buffer memory addresses 4017 to 4021, 4241

Pointer No. 2 = Buffer memory addresses 4022 to 4026, 4242

Pointer No. 15 = Buffer memory addresses 4087 to 4091, 4255

Chapter 5 Data Used for Positioning Control

4057 4062 4067 4072 4077 4082 4087

4244 4245 4246