Fisher FIELDVUE DVC2000 Instruction Manual Supplement page 10

DVC2000 Digital Valve Controller
September 2017
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
Request
none
Data Bytes
0
Response
1­4
Data Bytes
Code
Command­
Specific
none
Response
Codes
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
Request
none
Data Bytes
0­3
Response
4­7
Data Bytes
Code
Command­
Specific
none
Response
Codes
10
Format Description
Byte, hex Primary Variable Unit Code, either 39 (mA) or 57(%)
Float Primary Variable value
Class Description
Format Description
Float Loop Current
Float Valve Travel
Class Description
Instruction Manual Supplement
D103783X012