Table of Contents
Advertisement
Functional Description
Bit number
PAFE byte
0
Hardware faults, communication and data errors
1
Parameter and data errors
2
Data block number entered is illegal,
data block does not exist or is too short,
CPU not permissible
3
Commencement or continuation of data exchange
with the IP 240 was not possible. Delay time for
communication with the IP 240 exceeded.
7
The function block was aborted prematurely
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.
Fault code
(DW 8 to 10)
1001
1002
1003
101n
102n
Error code
4000
41nn
6-6
Table 6-2. Error Flagging in the PAFE Byte
Error category
Table 6-3. Hardware Fault Codes
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
Description
Protocol error
Job number illegal; nn = old job number
IP 240
Exact error de-
scription in DB
DW 8 to 10
DW 13
-
-
-
EWA 4NEB 811 6120-02a
Advertisement
Table of Contents
