Mitsubishi Electric MELSEC-L LD75P User Manual page 189

Positioning module

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(3) Error history configuration

Information related to an error are stored in Error history with pointers 0 to 15. Error history is configured as

shown below.

Axis in which the error

Axis error No.

Axis error occurrence

Axis error occurrence

Axis error occurrence

Buffer memory

(a) [Md.9] Axis in which the error occurred

Storage details

Stores a number (Axis No.) that indicates the axis that encountered an error.

■Monitoring is carried out with a decimal display.

Reading the monitor

Default value

Storage buffer memory

For details on the storage buffer memory, refer to the following.

Page 187, Section 5.6.1 (3)

(Common to axes 1 to 4)

Error history pointer

Indicates a pointer No. that is next to the Pointer No.

assigned to the latest of the existing error history records.

Each group of buffer memory addresses storing a complete error history

record is assigned a pointer No.

Example: Pointer No. 0 = Buffer memory addresses 1293 to 1296, 1456

Pointer No. 1 = Buffer memory addresses 1297 to 1300, 1457

Pointer No. 2 = Buffer memory addresses 1301 to 1304, 1458

Pointer No. 15 = Buffer memory addresses 1353 to 1356, 1471

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.)

Storage value

CHAPTER 5 DATA USED FOR POSITIONING CONTROL

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Melsec-l ld75d