Specifications

Channel Master Operation Manual
page 52 RD Instruments
CJ – SDI-12 Configuration
Purpose This command is used to enable SDI-12 communications.
Format CJ x;y;z
x – Enable/Disable (0 = Disable, 1 = Enable)
y – Address (The address can be any alphanumeric character)
z – English/Metric Units for output (0 = Metric, 1 = English)
Default CJ0;0;0
Recommended Setting. Use as needed.
Description This command is used to enable SDI-12 communications for
data logging purposes only. It allows for configuration of the
SDI-12 Address and the units of the data returned from the
unit (English or Metric). The address, as specified by the
SDI-12 Specification v1.3, can be any alphanumeric character.
The data output can be in English or Metric Units. English
units are °F, ft, and ft/s. Metric Units are °C, m, and m/s.
Example
>CJ?
CJ 0;'0';0 -------------- SDI-12 Configuration {En/Dis,Addr,E/M }
>CJ1;0;1
>CJ?
> CJ 1;'0';1 ------------ SDI-12 Configuration {En/Dis,Addr,E/M }
CAUTION. Use of the CJ command without the SDI-12 Personality
module installed can cause unexpected results.
CK – Keep Parameters
Purpose Stores present parameters to non-volatile memory.
Format CK
Recommended Setting. Use as needed.
Description CK saves the present user command parameters to non-
volatile memory on the CPU board. The Channel Master
maintains data stored in the non-volatile memory (user set-
tings) even if power is lost. It does not need a battery. You
can recall parameters stored in non-volatile memory with the
CR0-command.