Specifications

Functional Description IP 240
Table 6-2. Error Flagging in the PAFE Byte
Bit number
PAFE byte
Error category
0
1
2
3
7
Hardware faults, communication and data errors
Parameter and data errors
Data block number entered is illegal,
data block does not exist or is too short,
CPU not permissible
Commencement or continuation of data exchange
with the IP 240 was not possible. Delay time for
communication with the IP 240 exceeded.
The function block was aborted prematurely
Exact error de-
scription in DB
DW 8 to 10
DW 13
-
-
-
6.4.1 Hardware Faults and Communications Errors
When hardware faults on the IP 240 or communications errors with the IP 240 occur, the function
block sets bit 0 in the PAFE byte.
The function block enters the exact causes of the errors in data words 8 to 10 of the specified data
block. The Data word Left (DL) contains the error number, the Data word Right (DR) the error
extension.
The last three errors to occur are entered. Data word 10 contains the last error to have been
detected.
Once they have been read out, communications error flags are reset on the IP 240. Hardware fault
flags are not reset and can be read out repeatedly.
Table 6-3. Hardware Fault Codes
Fault code
(DW 8 to 10)
1001
1002
1003
101n
102n
Description
Watchdog error
Error in checksum test (EPROM)
Error in counter test (82C54)
Main memory test no. n faulty, n=1 to 8
Transfer buffer test no. n faulty, n=1 to 8
Table 6-4. Communications Error Codes
Protocol error
Job number illegal; nn = old job number
DescriptionError code
4000
41nn
6-6 EWA 4NEB 811 6120-02a