Siemens CU240B-2 Parameter Manual page 256

Parameters
List of Parameters
p2024[0...2] Fieldbus interface times / Fieldbus times
CU240B-2 Access level: 3
CU240E-2
Can be changed: U, T
CU240E-2 F
Units group: -
Min
0 [ms]
Description: Sets the time values for the fieldbus interface.
The following applies for MODBUS:
p2024[0]: Maximum permissible telegram processing time of the MODBUS slave in which a reply is sent back to the
MODBUS master.
p2024[1]: Character delay time (time between individual characters in the telegram).
p2024[2]: Telegram pause time (pause time between two telegrams).
Index: [0] = Max. processing time
[1] = Character delay time
[2] = Telegram pause time
Dependency: Refer to: p2020, p2030
Note: Re p2024[1,2] (MODBUS):
If the field bus baud rate is changed (p2020), the default time settings are restored.
The default setting is the time required for 1.5 characters (p2024[1]) or 3.5 characters (p2024[2]) (depending on the
set baud rate).
r2029[0...7] Field bus int error statistics / Field bus error
CU240B-2 Access level: 3
CU240E-2
Can be changed: -
CU240E-2 F
Units group: -
Min
-
Description: Displays the receive errors on the field bus interface (RS485).
Index: [0] = Number of error-free telegrams
[1] = Number of rejected telegrams
[2] = Number of framing errors
[3] = Number of overrun errors
[4] = Number of parity errors
[5] = Number of starting character errors
[6] = Number of checksum errors
[7] = Number of length errors
p2030 Field bus int protocol selection / Field bus protocol
CU240B-2 Access level: 1
CU240E-2
Can be changed: T
CU240E-2 F
Units group: -
Min
0
Description: Sets the communication protocol for the field bus interface.
Value: 0:
1:
2:
Notice: For p0014 = 1, the following applies:
After the value has been modified, no further parameter modifications can be made and the status is shown in
r3996. Modifications can be made again when r3996 = 0.
Note: Changes only become effective after POWER ON.
The parameter is not influenced by setting the factory setting.
1-256
No protocol
USS
MODBUS
SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Calculated: -
Scaling: -
Unit selection: -
Max
10000 [ms]
Calculated: -
Scaling: -
Unit selection: -
Max
-
Calculated: -
Scaling: -
Unit selection: -
Max
2
Data type: FloatingPoint32
Data set: -
Factory setting
[0] 1000 [ms]
[1] 0 [ms]
[2] 0 [ms]
Data type: Unsigned32
Data set: -
Factory setting
-
Data type: Integer16
Data set: -
Factory setting
0
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