11.90 4 Monitoring Functions
4.6 Listing of the alarms/alarm description
Alarm No.
Alarm Text:
14
”RAM error memory module”
Remarks: Alarm on commissioning
Alarm No.
Alarm Text:
16
”Parity error RS232C (V.24)”
Reason:
Effect:
Remedy:
Explanation:
The last character transferred has incorrect parity.
RS232C (V.24) transfer is interrupted; the last block is not stored
– Check setting data 5011/5013/5019/5021
– Test external device
The alarm only appears when the setting data ”with parity bit” is set.
Alarm No.
Alarm Text:
17
”Overflow error RS232C (V.24)”
Reason:
Effect:
Remedy:
Transfer speed is not correct
– Data transfer is interrupted
– The last block is not stored
– Check setting data 5011/5013/5019/5021
– Check transfer speed (Baudrate)
Alarm No.
Alarm Text:
18
”Frame error RS232C (V.24)”
Reason:
Effect:
Remedy
– Number of stop bits is incorrect
– Baudrate is incorrect
– Number of data bits is incorrect
– Data transfer is interrupted
– The last block is not stored
– Check setting data 5011/5013/5019/5021
– Test external device
Alarm No.
Alarm Text:
19
”I/O device not ready RS232C (V.24)”
Reason:
Effect:
Remedy:
DSR (data set ready) signal has low level
Data are not read in
– Start external device
– Do not use DSR (disconnect cable)
Alarm No.
Alarm Text:
20
”PLC alarm memory not formatted”
Remarks: Alarm only on commissioning
© Siemens AG 1990 All Rights Reserved 6ZB5 410-0EQ02 4-7
SINUMERIK 810M, GA3 (BN)
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