A-16
Serial Communications
DC590+ DRV Series DC Digital Drive
EI Bisynch Binary Message Protocol
Transmission Standard
: RS485
(RS422
bi-directional)
Protocol
:
ANSI-X3.28-2.5-B1
Data Rates
:
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 or 115200 Baud
Character Format
:
1 start + 8 bit ASCII data + 1 1 stop bit (11 bits)
Parity
: Even
Transferring Data - Binary Example Messages
There are two message types:
1.
Main Messages
2.
Continuation Messages
Main Messages
The main messages are in four types:
SELECTION
The Supervisor writes to one parameter. The (BCC) character contains the checksum of all characters following the (STX).
POLLING
The Supervisor requests to read the value of one parameter.
(EOT)
(INO)
(PNO)
(CCC) (ENQ)
ENQUIRY POLLING
The Supervisor requests to read all parameters in block 1.
(EOT)
(INO)
(CCC) (ENQ)
MULTI-PARAMETER POLLING
The Supervisor requests to read a given number of parameters. That number is referred to as the count number (CNO), it is included in the request
message and the reply will be sent by the drive, in blocks of up to 8 parameters.
(EOT)
(INO)
(PNO) (CNO) (CCC) (ENQ)
NOTE
The (CCC) is the checksum of the characters following an (EOT) and is therefore equal to (INO) in Selection and Enquiry Polling messages.
(EOT)
(INO)
(CCC)
(STX)
(PNO)
(D1)
(D2)
(D3)
(ETX)
(BCC)
Summary of Contents for 590+ DRV
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Page 126: ...3 88 Installing the Drive DC590 DRV Series DC Digital Drive...
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Page 166: ...5 8 Control Loops DC590 DRV Series DC Digital Drive...
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Page 292: ...B 16 Certification DC590 DRV Series DC Digital Drive...
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Page 330: ...C 36 Parameter Specification Tables DC590 DRV Series DC Digital Drive...
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Page 368: ...D 20 Programming DC590 DRV Series DC Digital Drive Functional Description...
Page 496: ...D 148 Programming DC590 DRV Series DC Digital Drive Programming Block Diagram Sheet 1...
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