Rockwell Automation 1203-SSS Smart Self-powered Serial Converter User Manual
Page 39

Serial Converter Parameters
B-3
No.
Name and Description
Details
14
[NAK No Memory]
(1)
Number of NAKs sent by the serial converter because it
did not have sufficient memory to buffer the incoming
messages. The serial converter runs out of memory if a
command has not completed and there is no place to
save the new commands.
Default:
0
Minimum:
0
Maximum:
65535
Type:
Read Only
15
[Duplicate Msgs]
(1)
Number of duplicate messages sent by the serial
converter. This value contains the total number of
consecutive messages received by this device with the
same TNS (Transaction Sequence) number.
Default:
0
Minimum:
0
Maximum:
65535
Type:
Read Only
16
[Interface Select]
Auto
Converter will automatically run DPI if
connected to a DPI product or SCANport if
connected to a SCANport product.
SCANport
Converter will perform SCANport services
only.
Set this parameter to “Auto” (default) unless you are using
DriveExplorer v1.xx or DriveTools32 v2.xx software and
you are connected to a DPI product. Use “SCANport” for
these software versions.
Default:
0 = Auto
Values:
0 = Auto
1 = SCANport
Type:
Read/Write
17
[DPI Data Rate]
(2)
Data rate used by the DPI host product. This data rate is
set in the drive, and the adapter autobauds to it.
Default:
0
Values:
0 = 125 kbps
1 = 500 kbps
Type:
Read Only
18
[DF1 Addr Actual]
(2)
DF1 address actually used by the serial converter.
Default:
1
Minimum:
0
Maximum:
254
Type:
Read Only
19
[DF1 Rate Actual]
(2)
Serial port rate actually used for the DF1 serial port on the
serial converter.
Default:
0 = 9600
Values:
0 = 9600
1 = 19.2K
2 = 38.4K
Type:
Read Only
20
[Ref/Fdbk Size]
(2)
Size of the Reference/Feedback. The host product
determines the size of the Reference/Feedback. The
serial converter automatically uses the correct size.
Default:
0 = 16-bit
Value:
0 = 16-bit
1 = 32-bit
Type:
Read Only
21
[Datalink Size]
(2)
Size of each Datalink word. The host product determines
the size of Datalinks.
Default:
0 = 16-bit
Values:
0 = 16-bit
1 = 32-bit
Type:
Read Only
(1)
This value is normally a low value. If it is continually incrementing and you are having
communications problems, use a lower baud rate or replace the 1203-SFC serial cable.
(2)
The parameter appears only when the serial converter is connected to a product implementing
DPI.