22
ASCII
RS485/RS232 Communications Interface
Example 4: Tag Access (Single Parameter Selection)
Here we are writing a value to a single parameter:
the value of PRESET INPUT 1 is 30.00%.
SET PARAMETER
(Tag 348, PRESET INPUT 1, ID 9o, Type REAL - see the Parameter Specification Table in the
650 or 650V Software Product Manual for this information)
For software users
:
Enter the known address of the drive (say 01), (STX), 90, 30. and (ETX).
•
For programmers, in ASCII:
(EOT)
0
0
1
1
(STX)
9
o
3
0
.
(ETX)
(
•
For programmers, in HEX:
04
30
30
31
31
02
39
6F
33
30
2E
03
78
•
As Characters - Establish Connection | Data Transfer:
(EOT) (GID) (GID) (UID) (UID) (STX) (C1) (C2) (D1) (D2) (D3) (ETX) (BCC)
Note:
The (GID)(UID) address is always entered twice.
Note:
Refer to ”Instrument Address”, page 14 for a more detailed explanation.
Note:
The BCC checksum (XOR) of the data after and excluding (STX) up to and including (ETX)
is “(” and >78. Refer to ”Block Check Character (BCC)”, page 13 for a more detailed
explanation.
RESPONSE
•
For software users
:
The response will be either (ACK), (NAK) or no reply. If (ACK), the parameter value will
be updated at the drive.
•
For programmers, in ASCII:
either (ACK), (NAK) or no reply
•
For programmers, in HEX:
either 06, 15 or no reply
•
As Characters:
either (ACK), (NAK) or no reply
Summary of Contents for 6513
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