Efb Protocol - ABB ACS355 User Manual

278 Actual signals and parameters
All parameters
No. Name/Value
8 EVEN 1
8 ODD 1
5204 OK
MESSAGES
0...65535
5205 PARITY
ERRORS
0...65535
5206 FRAME
ERRORS
0...65535
5207 BUFFER
OVERRUNS
0...65535
5208 CRC ERRORS Number of messages with an CRC (cyclic redundancy
0...65535
53 EFB PROTOCOL Embedded fieldbus link settings. See chapter
5302 EFB STATION
ID
0...247
5303 EFB BAUD
RATE
1.2 kb/s
2.4 kb/s
4.8 kb/s
9.6 kb/s
19.2 kb/s
38.4 kb/s
57.6 kb/s
115.2 kb/s
5304 EFB PARITY
8 NONE 1
Description
8 data bits, even parity indication bit, one stop bit
8 data bits, odd parity indication bit, one stop bit
Number of valid messages received by the drive. During
normal operation, this number increases constantly.
Number of messages
Number of characters with a parity error received from the
Modbus link. If the number is high, check that the parity
settings of the devices connected on the bus are the same.
Note: High electromagnetic noise levels generate errors.
Number of characters
Number of characters with a framing error received by the
Modbus link. If the number is high, check that the
communication speed settings of the devices connected on
the bus are the same.
Note: High electromagnetic noise levels generate errors.
Number of characters
Number of characters which overflow the buffer, ie number
of characters which exceed the maximum message length,
128 bytes.
Number of characters
check) error received by the drive. If the number is high,
check CRC calculation for possible errors.
Note: High electromagnetic noise levels generate errors.
Number of messages
control with embedded fieldbus
Defines the address of the device. Two units with the same
address are not allowed on-line.
Address
Defines the transfer rate of the link.
1.2 kbit/s
2.4 kbit/s
4.8 kbit/s
9.6 kbit/s
19.2 kbit/s
38.4 kbit/s
57.6 kbit/s
115.2 kbit/s
Defines the use of parity and stop bit(s) and the data length.
The same setting must be used in all on-line stations.
No parity bit, one stop bit, 8 data bits
Fieldbus
on page 301.
Def/FbEq
2
3
0
1 = 1
0
1 = 1
0
1 = 1
0
1 = 1
0
1 = 1
1
1 = 1
9.6 kb/s
1 =
0.1 kbit/s
8 NONE 1
0