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Communication Set-up – EFB
Serial Communication Selection
To activate the serial communication, set parameter 9802
COMM PROTOCOL SEL =
• 1 (STD MODBUS) . The MD4 must be set here with
MicroTech III control .
• 2 (N2)
• 3 (FLN)
• 5 (BACNET)
NOTE: If you cannot see the desired selection on the panel,
your drive does not have that protocol software in the
application memory .
Serial Communication Configuration
Setting 9802 automatically sets the appropriate default values
in parameters that define the communication process. These
parameters and descriptions are defined below. In particular,
note that the station Id may require adjustment .
Table 49: Serial Communications Configuration Protocol Reference
Code Description
EFB Protocol Reference
Modbus N2 FLN BACnet
5301 EFB PROTOCOL ID Contains the identification and
program revision of the protocol .
Do not edit . Any non-zero value entered for parameter 9802 COMM PROT SEL, sets this parameter
automatically . The format is: XXYY, where xx = protocol ID, and YY = program revision .
5302 EFB STATION ID Defines the node address of the
RS485 link .
Set each drive on the network with a unique value for this
parameter . When this protocol is selected, the default value for
this parameter is: 1 Note: For a new address to take affect, the
drive power must be cycled OR 5302 must first be set to 0 before
selecting a new address . Leaving 5302 = 0 places the RS485
channel in reset, disabling communication . .
Sets MS/TP MAC ID . A
temporary value of 0 places the
protocol channel in reset
5303 EFB BAUD RATE
Defines the communication
speed of the RS485 link in kbits per second (kbits/s) .
1 .2 kbits/s
2 .4 kbits/s
4 .8 kbits/s
9 .6 kbits/s
19 .2 kbits/s
38 .4 kbits/s
57 .6 kbits/s
76 .8 kbits/s
When this protocol is selected, the default value for this parameter is When this protocol is selected,
the default value for this
parameter is: 38400
9 .6 9 .6 4 .8 .
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 = 8N1 – 8 data bits, No parity, one stop bit .
1 = 8N2 – 8 data bits, No parity, two stop bits .
2 = 8E1 – 8 data bits, Even parity, one stop bit .
3 = 8O1 – 8 data bits, Odd parity, one stop bit .
When this protocol
is selected, the
default value for this
parameter is: 1
When this protocol is selected, the default value for this parameter is: 0
Sets MS/TP character format .
5305 EFB CTRL PROFILE Selects the communication
profile used by the EFB protocol.
0 = ABB DRV LIM – Operation of Control/Status
Words conform to ABB Drives Profile, as used in
ACH400 .
1 = DCU PROFILE – Operation of Control/Status
Words conform to 32-bit DCU Profile.
2 = ABB DRV FULL – Operation of Control/Status
Words conform to ABB Drives Profile, as used in
ACH600/800 .
When this protocol
is selected, the
default value for this
parameter is: 0
N/A . When this protocol is selected, the default value for this parameter is: 0 .
Changing the value for this parameter has no affect on this protocol’s behavior .
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