Delta DTM Series - Page 56

Chapter 6: Operating Instructions for Other Auxiliary
Functions
DTM temperature controller operating manual
6-9
Table –Communications content of CT mode settings
 Notes: y is the internal station number of DTM-CT030.
F. Read the CT current value: (communication addresses are shown in the table below)
According to the different monitoring requirements for CT current, DTM provides three different
modes of current measurement. Different values can be written to the Hx262 communication
address to detect the CT current when the output channel is turned on and off or output the full-
time CT current.
CT Alarm reading mode: Set the content of address Hx262 to 0,
According to DTM host or measurement expansion module corresponding to the CT channel,
when the output is on, the CT alarm current value is measured; when the output is off, the CT
alarm current value at the previous turn-on is retained.
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CT1 Alarm
current
Hx2C8 Hx2C9 Hx2CA Hx2CB Hx2CC Hx2CD Hx2CE Hx2CF
CT2 Alarm
current
Hx2D0 Hx2D1 Hx2D2 Hx2D3 Hx2D4 Hx2D5 Hx2D6 Hx2D7
Table - Communication address for reading the CT current
CT time division reading mode: Set the content of address Hx262 to 1
According to DTM host or measurement expansion module corresponding to the CT1 channel,
when the output is on, measure the current value of CT1; when the output is off, measure the
current value of CT1.
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CT1 ON current Hx2C8 Hx2C9 Hx2CA Hx2CB Hx2CC Hx2CD Hx2CE Hx2CF
CT1 OFF current Hx2D0 Hx2D1 Hx2D2 Hx2D3 Hx2D4 Hx2D5 Hx2D6 Hx2D7
Table - Communication address for reading the CT current
CT fulltime reading mode: Set the content of address Hx262 to 2
According to DTM host or measurement expansion module corresponding to the CT1 channel,
when the output is on, the CT1 current value is measured; in addition, the full-time CT1 current
value can be read.
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CT1 ON current Hx2C8 Hx2C9 Hx2CA Hx2CB Hx2CC Hx2CD Hx2CE Hx2CF
CT1 Fulltime
current
Hx2D0 Hx2D1 Hx2D2 Hx2D3 Hx2D4 Hx2D5 Hx2D6 Hx2D7
Table - Communication address for reading the CT current
 Notes: x is the internal station number of the DTM host or measurement expansion module corresponding to
the CT.
 The unit of CT1/ CT2 value is 0.1A.