Delta DTM Series - Auto Multi-Loop Control Function Description

Chapter 6: Operating Instructions for Other Auxiliary
Functions
DTM temperature controller operating manual
6-13
 Note:
1. In the above table, x is the internal station number of the measurement host or measurement expansion
module. If the output points of the same output expansion module are allocated to the measurement host
and the measurement expansion module at the same time, the corresponding communication addresses
of the measurement host and the measurement expansion module must be read and written separately.
2. Writing example 1: DTM system existing measurement host, assign channel 1 of the DOV expansion module of
internal station number 1 to input channel 1 of the DTM host (internal station number = 0), then write the content
[H0000] to the address [H0D00], H0D00 is the corresponding communication address of the DTM host.
Write example 2: Assign channel 10 of the DOX expansion module with internal station number 9 to input channel
8 of the measurement expansion module (internal station number = 1), and write the content [H0017] to the
address [H1D89].
H1D89 is the corresponding communication address of the measurement expansion module.
3. Reading example 1: The measurement host reads the input channel of the measurement module corresponding
to channel 1 of the DOV expansion module of internal station number 1, and then directly reads the address
[H0D00].
Reading example 2: The measurement host reads the input channel of measurement module corresponding to
channel 10 of the DOX expansion module of the internal station number 9, and then directly reads the address
[H0D89].
6.4.3 Auto multi-loop control function description
In the auto multi-loop control mode, the auxiliary output percentage of each output channel is
automatically calculated by the DTM based on the following parameters and does not need to be filled in
by the user.
Each output channel needs to specify the corresponding input channel of the measurement device, please
refer to section 6.4.2. In addition, the following parameters need to be filled in by the user.
Auxiliary SV: the virtual temperature set by the user, the temperature range can be set from 0.0 to 1000.0°C.
Main SV: The SV of the DTM master channel, that is, the SV of channel that is actually connected to the
temperature sensor.
MaxSV: The highest temperature used by the customer under actual working conditions.
MinSV: The lowest temperature used by the customer under actual working conditions.
Temperature difference coefficient: used to adjust the linear error between the actual temperature and
the virtual temperature, the value range is 0.0~999.9, generally within 10, the default value is 0.。
Main control coefficient: used to adjust the nonlinear error between the actual temperature and the virtual
temperature, the value range is 0.0~999.9, generally within 10, and the default value is 0.
Auxiliary control coefficient: Calculate the forced ON or OFF time according to the amount of error
between the auxiliary SV and the actual operating conditions, so as to quickly reach the new auxiliary SV,
output when it is ON 100%, the value range is 0.0~99.9, the default value is 0.
Auxiliary SV
Corresponding
measurement
devices input
channel
MaxSV
MinSV
Temperature
difference
coefficient
Main
control
coefficient
Auxiliary
control
coefficient
Address
xA00~xAEF
xD00~xDEF
x148
x149
x14A
x14B
x14C
Content
written
0 ~10000
xy，x=0~F(internal station
no.); y=0~7CH,
(0 corresponds to input
channel 1)
0 ~9999
0 ~9999
0 ~9999
0 ~9999
0 ~999
Mapping
range
0.0~1000.0°C
All input channels of the
measurement
devices
0 ~999.9
0~999.9 0~999.9 0~999.9 0~99.9
Forced
Full Off
10001(Corresponds
to 0% output
)
Forced
Full ON
10002(Corresponds
to 100% output