Instruction Manual

Instruction Manual Supplement
D103783X012
DVC2000 Digital Valve Controller
August 2014
10
Command 1: Read Primary Variable
This command reads the value of the DVC2000’s Primary Variable, which is Analog Input (loop current). The units are
either
“mA” or “%” as configured in the device by Command 44.
Byte Format Description
Request
Data Bytes
none
Response
Data B
y
tes
0 Byte, hex Primary Variable Unit Code, either 39 (mA) or 57(%)
14 Float Primary Variable value
Code Class Description
Command
Specific
Response
Codes
none
Command 2: Read Primary Variable and Percent of Range
This command reads the value of the DVC2000’s loop current in implied units of “mA” (regardless of the configured
setting by Command #44) and the measured Valve Travel in implied units of “%”.
Byte Format Description
Request
Data Bytes
none
Response
Data B
y
tes
03 Float Loop Current
47 Float Valve Travel
Code Class Description
Command
Specific
Response
Codes
none