20.13.1 Restrictions on Alarm History

Display Unit

Basic

Expand

IPC Series

10000

65533

SP5000 Series*1

GP4000 Series

2048 *2

65533

Other Models

2048 *2

32767

*1When using the SP5000 Series Open Box, you can register the same number of records as the IPC Series by selecting [Folder] in [System Settings] - [Display Unit] - [WinGP] - [Historical Data Retentive Settings] - [Save in].

*2 You can register up to 2048 alarm messages, including [Bit Monitoring] and [Word Monitoring] for the whole Alarm History (Block 1 to 8). For [Word Monitoring], you can register up to 768 alarm messages.

Display Unit

Basic

Expand

IPC Series

10000

10000

SP5000 Series*1

GP4000 Series

768

2048

Other Models

768

768

*1When using the SP5000 Series Open Box, you can record the same number of records as the IPC Series by selecting [Folder] in [System Settings] - [Display Unit] - [WinGP] - [Historical Data Retentive Settings] - [Save in].

Restrictions when the [Alarm Type] is [Extended]

GP-4100 Series Restrictions

LOSS OF DATA

  • With the GP-4100 series, if you turn off the display unit in the middle of saving the history data, all the data may be lost or you may not be able to save the data anymore. Before turning the display unit off, turn ON the #H_Control_StopAlarmSave system variable and then save history data. When you turn ON the system variable #H_Control_StopAlarmSave before turning off the display unit, the history data is saved. Thus, data will not be saved until the next time the bit is turned OFF even if the cycle set in the [Storage Frequency] elapses.
    For more information about system variables, please see the following.
    A.2.2.1 Bit Type - #H System Variables

  • Please save history data before going to offline mode. If you enter offline mode before saving, reset will cause the loss of all the latest history data.

Failure to follow these instructions can result in equipment damage.