Delta DTM Series - Read the Present Value and Setpoint Value

Chapter 3: Input Function Configuration
DTM temperature controller operating manual
3-3
16
0V-10V analog input
-1999 ~ 19999
17
0-20mA analog input
-1999 ~ 19999
18
4-20mA analog input
-1999 ~ 19999
19
0-50mV analog input
-1999 ~ 19999
20
Thermocouple C type
0 - 2300°C
Table - Input type, range, and the corresponding communications content
 Note: The default is a K-type thermocouple pair.
 Note: When the C-type sensor input is switched to Fahrenheit temperature unit, the upper limit of the display
range is 3270°F.
3.1.3 Read the Present Value and Setpoint Value
PV value: Reads the measurement value or error message from each channel (see table below)
SV value (R): Read setpoint value; During programmable control, reads the dynamic configured value
 Notes: Please refer to [Chapter 5] concerning programmable control
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
PV value Hx268 Hx269 Hx26A Hx26B Hx26C Hx26D Hx26E Hx26F
SV value (R) Hx270 Hx271 Hx272 Hx273 Hx274 Hx275 Hx276 Hx277
Table - PV and SV communications addresses
Hx268 - Hx26F (input channels 1~8)
Communications
content
Description of error message content
H8001 EEPROM cannot write
H8002
Input sensor line is severed or not
connected
H8003 ADC read failure
H8004
Internal communications error
H8005 Input error
H8006
Channel disabled
H8007
Input data unstable
Table – Content corresponding to PV error codes
 Notes:
1. x indicates the internal station number of the system or measurement expansion module.
2. Communications address Hx00 (see Section 3.1.1) can read and write the SV value, but communications
address Hx270 can only read the SV value; the latter purpose is to directly read the 16 data starting from
Hx268 when the user reads the PV value, you can read the PV value and SV value of all channels together
simultaneously.