Ci: Pzd To Com Link (Uss); Uss Error-Free Telegrams; Uss Rejected Telegrams - Siemens MICROMASTER 440 Parameter Manual

Issue 01/06
P2019[8]

CI: PZD to COM link (USS)

CStat: CT
P-Group: COMM
Selects signals (process data PZD) to be transmitted to serial interface via USS on COM link
r0052
r0052
r0021
r0053
r0053
STX Start of text
LGE Length
ADR Address
Parameter ID value
PKW
PZD Process data
BCC Block check character
ZSW Status word
HIW Main actual value
PZD mapping from parameter P 2019
Index:
P2019[0] : Transmitted word 0
P2019[1] : Transmitted word 1
P2019[2] : Transmitted word 2
P2019[3] : Transmitted word 3
P2019[4] : Transmitted word 4
P2019[5] : Transmitted word 5
P2019[6] : Transmitted word 6
P2019[7] : Transmitted word 7
Details:
See P2016 (PZD to BOP link)
r2024[2]

USS error-free telegrams

P-Group: COMM
Displays number of error-free USS telegrams received.
Index:
r2024[0] : Serial interface COM link
r2024[1] : Serial interface BOP link
r2025[2]

USS rejected telegrams

P-Group: COMM
Displays the number of rejected USS telegrams. The sum of all USS errors (r2026 - r2031) is displayed in
parameter r2025.
The following monitoring mechanisms have been implemented
- when a telegram is received, then initially, the correct start of a telegram (start interval + STX) must be
identified and then the length must be evaluated (LGE). If the length does not correspond to the
selected value for a fixed telegram or it does not have a valid value for a variable telegram length, the
telegram is rejected.
- the appropriate times are monitored before and while receiving telegrams.
- the block check character (BCC) is generated while the telegram is received and after the complete
telegram has been read-in, this is compared with the received BCC. If these do not match, then the
telegram is not evaluated.
- if a character frame error or a parity error has not occurred in any of the received characters, then the
node number (ADR) of the received telegram can be evaluated.
- the telegram is rejected if the address byte (ADR) does not correspond to the node number (for slave)
or the expected slave node number (for the master).
Index:
r2025[0] : Serial interface COM link
r2025[1] : Serial interface BOP link
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
Datatype: U32 Unit: -
Active: Immediately QuickComm.: No
P2019
[0]
[1]
[2]
[3]
.
.
.
PZD4
[7]
ZSW2
PZD
BCC
Process data
Datatype: U16 Unit: -
Datatype: U16 Unit: -
Parameter Description
Min: 0:0
Def: 52:0
Max: 4000:0
PZD3 PZD2 PZD1
HIW ZSW1
P2012
PKW
ADR LGE
Parameter
USS telegram
USS on COM link
Min: -
Def: -
Max: -
Min: -
Def: -
Max: -
Level
3
STX
Level
3
Level
3
201