Control Techniques UD70 User Manual

UD70
Issue code: 70nu2
6-8 Serial communications
The UD70 will reply with the following structure if the message is
understood:
Control Parameter Data Control BCC
STX M1 M2 P1 P2 D1 ... Dn ETX BCC
Where:
M1 M2 = Menu number
P1 P2 = Parameter number
D1...Dn = Data
First character:
+ or Space for positive values
– for negative values
XX for hex. values
BCC = Block checksum
If a requested parameter does not exist, the
UD70 will reply with an EOT
character (ASCII 04).
Example
To read the speed set-point of a Unidrive that is unit 2 of group 1, send:
Control Address Parameter
Control
STX 1 1220121
ENQ
The unit replies as follows:
Control Parameter Data Control BCC
STX 0 1 2 1 – 4 7 . 6 ETX 7
Note
When the UD70 replies to a command, the length of the
data field returned is variable, depending upon the type of
Drive, and the parameter being read.

Control Techniques UD70 Specifications

General

Brand	Control Techniques
Model	UD70
Category	Control Unit
Language	English