Types And Roles Of Monitor Data - Mitsubishi Electric MELSEC-L LD75P User Manual

5.1.7

Types and roles of monitor data

The monitor data area in the buffer memory stores data relating to the operating state of the positioning system, which
are monitored as required while the positioning system is operating.
The following data are available for monitoring.
• System monitoring: Monitoring of the LD75 configuration and operation history (through the system monitor
data [Md.1] through [Md.19], [Md.50] through [Md.52])
• Axis operation monitoring: Monitoring of the current position and speed, and other data related to the
movements of axes (through the axis monitor data
*1 The axis monitor data are refreshed every 0.9ms. Also, "[Md.23] Valid M code", is updated when the "M code ON signal
[X4, X5, X6, X7]" turns ON.
(1) Monitoring the system
(a) Monitoring the positioning system operation history
Whether the system is in the test function or not
History of data that started an operation
History of all errors
History of all warnings
Number of write accesses to the flash ROM after
the power is switched ON
114
Monitoring details
Start information
Start No.
Start
Error upon starting
Pointer No. next to the pointer No. where the
latest history is stored
Axis in which the error occurred
Axis error No.
Axis error occurrence
Pointer No. next to the pointer No. where the
latest history is stored
Axis in which the warning occurred
Axis warning No.
Axis warning occurrence
Pointer No. next to the pointer No. where the
latest history is stored
Number of write accesses to flash ROM
*1
[Md.20] through [Md.48])
[Md.1] In test mode flag
[Md.3] Start information
[Md.4] Start No.
Year:month [Md.50] Start (Year:month)
Day:hour [Md.5] Start (Day:hour)
Minute:second [Md.6] Start (Minute:second)
[Md.7] Error judgment
[Md.8] Start history pointer
[Md.9] Axis in which the error occurred
[Md.10] Axis error No.
Year:month [Md.51] Axis error occurrence (Year:month)
Day:hour [Md.11] Axis error occurrence (Day:hour)
Minute:second [Md.12] Axis error occurrence (Minute:second)
[Md.13] Error history pointer
[Md.14] Axis in which the warning occurred
[Md.15] Axis warning No.
Year:month [Md.52] Axis warning occurrence (Year:month)
Day:hour [Md.16] Axis warning occurrence (Day:hour)
Minute:second [Md.17] Axis warning occurrence (Minute:second)
[Md.18] Warning history pointer
[Md.19] No. of write accesses to flash ROM
Corresponding item