Siemens SIMATIC S7-400 CP 440 - Table 8-3 Event Class 30

To Next Page

To Previous Page

Diagnostics with the CP 440

8.3 Diagnostics Messages of the Function Blocks

Point-to-point connection CP 440 Installation and Parameter Assignment

124 Manual, 09/2007, A5E00057742-03

Event Class 30

Event class 30 contains error messages which might occur during communication between

the CP 440 and the CPU via the S7 backplane bus.

The table below describes event class 30.

Table 8-3 Event Class 30

Event Class 30 (1EH): "Error during communication between CP and CPU"

Event no. Event Further Information/Remedy

(1E)0DH

• Job aborted due to a cold restart, warm restart or

reset

• Module firmware does not exist

• Repeat the job.

• Check whether the module is inserted.

(1E)0EH Static error when the RD_RED SFC was called.

Return value RET_VAL of SFC is available for

evaluation in SFCERR variable in instance DB.

Load SFCERR variable from instance DB.

(1E)0FH Static error when the WR_REC SFC was called.

Return value RET_VAL of SFC is available for

evaluation in SFCERR variable in instance DB.

Load SFCERR variable from instance DB.

(1E)41H Number of bytes set in LEN parameter of FBs illegal. Keep to the value range of 1 to 400 bytes (Page

86).

Calling the SFCERR variable

You can obtain more information on errors 14 (1E0EH) and 15 (1E0FH) in event class 30 by

means of the SFCERR variable.

You can load the SFCERR variable from the instance DB belonging to the corresponding

function block.

The error messages entered in the SFCERR variable are described in the section on the

system functions SFC 58 "WR_REC" and SFC 59 "RD_REC" in the

System Software for

S7-300/400, System and Standard Functions

reference manual.

Related product manuals