Diagnostic buffer of module CPU 412-2 DP

Order No./ Des cription Component Version
6ES7 841-0CC05-0YA5 Firmware V 5.4.1

Rack: 0
Slot: 3


Event 1 of 120: Event ID 16# 2522
Area length error when reading
Q area, bit access, Access address: 240
FC number: 250
Module address: 314
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
07:38:26.517 PM 08/19/2013


Event 2 of 120: Event ID 16# 2523
Area length error when writing
Q area, bit access, Access address: 240
FC number: 250
Module address: 308
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
07:38:26.517 PM 08/19/2013


Help on Event 2x22
Causes:

?The value addressed using the access address is outside or not completely within the permitted address range (the range varies depending on the particular CPU).

?Due to a faulty address calculation, the value addressed is > 65535. For indirect addressing, an address value greater than 65535 can occur due to faulty calculation. This value cannot be correctly entered in the detailed information for the event. In this case, a 0 will be entered an displayed as the access address for S7-300, and for the S7-400, the calculated value modulo 65535 will be displayed and entered as the access address.

To correct or avoid errors:

?Select the access address so that the addressed value is completely within the permitted address range.

?Check your user program.
是超范围了吗，怎么处理，谢谢