ACS550 User’s Manual
173
Group 53: EFB PROTOCOL
This group defines set-up variables used for an embedded fieldbus (EFB)
communication protocol. The standard EFB protocol in the ACS550 is Modbus. See
chapter
page
.
Code Description
5301
EFB PROTOCOL ID
Contains the identification and program revision of the protocol.
• Format: XXYY, where xx = protocol ID, and YY = program revision.
5302
EFB STATION ID
Defines the node address of the RS485 link.
• The node address on each unit must be unique.
5303
EFB BAUD RATE
Defines the communication speed of the RS485 link in kbits per second (kb/s).
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
76.8 kb/s
5304
EFB PARITY
Defines the data length, parity and stop bits to be used with the RS485 link communication.
• The same settings must be used in all on-line stations.
0 = 8
NONE
1 – 8 data bits, no parity, one stop bit.
1 = 8
NONE
2 – 8 data bits, no parity, two stop bits.
2 = 8
EVEN
1 – 8 data bits, even parity, one stop bit.
3 = 8
ODD
1 – 8 data bits, odd parity, one stop bit.
5305
EFB CTRL PROFILE
Selects the communication profile used by the EFB protocol.
0 =
ABB
DRV
LIM
– Operation of Control/Status Words conforms to ABB Drives Profile, as used in ACS400.
1 =
DCU
PROFILE
– Operation of Control/Status Words conforms to 32-bit DCU Profile.
2 =
ABB
DRV
FULL
– Operation of Control/Status Words conforms to ABB Drives Profile, as used in ACS600/800.
5306
EFB OK MESSAGES
Contains a count of valid messages received by the drive.
• During normal operation, this counter is increasing constantly.
5307
EFB CRC ERRORS
Contains a count of the messages with a CRC error received by the drive. For high counts, check:
• Ambient electro-magnetic noise levels – high noise levels generate errors.
• CRC calculations for possible errors.
5308
EFB UART ERRORS
Contains a count of the messages with a character error received by the drive.
5309
EFB STATUS
Contains the status of the EFB protocol.
0 =
IDLE
– EFB protocol is configured, but not receiving any messages.
1 =
EXECUT
INIT
– EFB protocol is initializing.
2 =
TIME
OUT
– A timeout has occurred in the communication between the network master and the EFB protocol.
3 =
CONFIG
ERROR
– EFB protocol has a configuration error.
4 =
OFF
-
LINE
– EFB protocol is receiving messages that are NOT addressed to this drive.
5 =
ON
-
LINE
– EFB protocol is receiving messages that are addressed to this drive.
6 =
RESET
– EFB protocol is performing a hardware reset.
7 =
LISTEN
ONLY
– EFB protocol is in listen-only mode.
5310
EFB PAR 10
Specifies the parameter mapped to Modbus Register 40005.
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