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Mode
Alarm Type
Standby upper/lower limit alarm: Alarm will be enabled when the PV reaches SV and
8
exceeds SV + AL-H or falls below SV – AL-L.
Upper limit standby alarm: Alarm will be enabled when the PV reaches SV and exceeds
9
SV + AL-H.
Lower limit standby alarm: Alarm will be enabled when the PV reaches SV and falls below
10
SV – AL-L.
Upper limit hysteresis alarm: Alarm will be enabled when the PV exceeds SV + AL-H.
11
Alarm will be disabled when the PV falls below SV + AL-L.
Lower limit hysteresis alarm: Alarm will be enabled when the PV falls below SV – AL-H.
12
Alarm will be disabled when the PV exceeds SV – AL-L.
14
Programmable STOP: Alarm will be enabled when the program is in STOP status.
Programmable RAMP UP: Alarm will be enabled when the program is in RAMP UP
15
status.
Programmable RAMP DOWN: Alarm will be enabled when the program is in RAMP
16
DOWN status.
17
Programmable SOAK: Alarm will be enabled when the program is in SOAK status.
18
Programmable RUN: Alarm will be enabled when the program is in RUN status.
Note: AL-H and AL-L include AL1H, AL2H and AL1L, AL2L. There is no mode 13 (reserved for CT function).
PID Programmable Control
Functions and Parameter Setting:
The PID programmable control includes 8 patterns (Pattern 0 ~ 7). Each pattern contains 8 steps (Step 0 ~ 7) and
parameters: link pattern, cycle and the number of steps.
Start Pattern
: This parameter can be set in the operation mode. The user can set up which pattern is the start
pattern for the programmable control. This function is only available when the program is in STOP status.
Step: Includes the settings of the two parameters, set point X and execution time T, indicating that the set point (SV)
has to rise to temperature X after the period of execution time T. If the result of the set point X is the same as that of
the previous setting, the process is called Soak; otherwise, it is called Ramp. Therefore, the programmable control is
also known as Ramp/Soak control.
The default setting of the first step program is Soak control. The temperature will first rise to the set point X and
remain at X. The total execution time is T.
Link Pattern: For example, if the parameter
is set as 2, it refers to the execution of pattern 2 will follow the
execution of pattern 0. If the link pattern is set as
, it refers to the program will end after the execution of the
pattern is completed and the temperature will remain at the SV for the last step.
Cycle: The additional number of cycles for a pattern. For example, if the parameter
pattern 4 has to execute twice additionally, totaling the executions to 3 times including the original one.
The Number of Steps: The number of steps in each pattern (range: 0 ~ 7). For example, if the parameter
set as 2, it refers to pattern 7 will execute step 0 ~ step 2 and other steps will not be executed.
The Execution:
1. When the parameter
is set as
, the program will start its execution from step 0 of the start pattern.
2. When the parameter
is set as
, the program will stop and the control output will be disabled.
3. When the parameter
is set as
, the program will stop and the temperature will stop at the SV before
the program stops. When you select
again, the program will execute again from step 0 of the start pattern.
4. When the parameter
is set as
, the program will stop and the temperature will stop at the SV before
the program stops. When you select
again, the program will resume the step before the program stops
and execute by the remaining time.
Display:
In PID programmable control, some SVs are re-set as P-XX. P refers to the current pattern and XX refers to the
current step. Press
to modify the display.
Select
and press
. SV will display the target temperature for the current step.
Select
and press
. SV will display the remaining time of the current step.
PID Control
In PID control, you can select any one of the 4 groups of PID parameter (P, I, D, IOF). After auto-tuning, the PID value
and the temperature SV will be stored into the selected PID parameter.
~
: PIDn, n = 0 ~ 4. 0 ~ 3 are the corresponding selected PID parameter.
auto-selected PID and the program will automatically select a most useful PID parameter based on the current SV. SV
displays will be
~
corresponding to n = 0 ~ 3.
~
: The SV for the selected PID parameter, can be set by the user or auto-generated by auto-tuning.
Valve Control
Heaters and coolers can be used to control the temperature and the openness of the valve in order to control the flow
of the medium. Current and voltage can control the openness of the valve; however, the most direct and economic
way to control the openness of the valve is the relay. To control the valve by voltage and current, you can use the DTB
series analog output controller. If you tend to use relay for the control output, you have to choose the valve function in
DTV series. The two control outputs are relay output for the forward/reverse running of the motor to drive the opening
and closing of the valve. Control output1 controls the opening of the valve and control output 2 controls the closing of
the valve in order to adjust the position of the valve. In order to detect the position of the valve, DTV is able to receive
"feedback signal" and "no feedback signal". When there is no feedback signal and the valve is fully open, control
output 1 will output continuously. If at the moment the valve is fully closed, control output 2 will output continuously. If
the valve you use is with feedback output, you can connect the output of the valve to the feedback part of DTV and set
to On to precisely control the openness of the valve. If there is no feedback signal or the feedback signal is
incorrect, and the pre-set openness of the valve is not reached after twice as long as the time set in the parameter
, the program will automatically switch back to the no feedback state. To ensure the correctness of the valve
control, please make sure that you have set up the parameters below:
: Time required from the valve fully closed to fully open. This parameter has to be correct when the valve is
without feedback signal; otherwise, the accuracy for the temperature control will be affected. The PID control will
correspond to the openness of the valve according to the setting of this parameter.
: DeadBand value of the valve. The parameter is to prevent frequent movement of the valve. For example,
assume the DeadBand is 4%, PID control will correspond to the openness of the valve within 4% and the valve will
not move within the range unless the value is accumulated and exceeds 4%. If the Deadband value is too small and
the valve is set to have feedback signals, moving back and forth of the valve will shorten the life of the valve motor.
: With or without feedback signals.
Alarm Output Operation
ON
When
is set as "On", it refers to "with feedback signals" and the following parameters will be displayed.
OFF
a)
: Automatically adjusting the upper/lower limit of the valve feedback. This parameter will only be displayed
AL-L
SV
AL-H
ON
when
is set as
. When this parameter is set as On, the relay will enable the forward and reverse
OFF
running of the motor in order to calculate the time needed from the valve fully closed to fully open and the
SV
AL-H
feedback signal of fully closed and open. The feedback signal is the hardware D/A value of the valve control,
ON
which is for the calculation of the valve controller.
OFF
b)
: Upper limit of the valve signal. Set
AL-L
SV
ON
c)
: Lower limit of the valve signal. Set
OFF
AL-L
AL-H
Auto/Manual Mode Switch
ON
OFF
A/M indicator On refers to manual mode; A/M indicator Off refers to auto mode. Besides On/Off, PID, programmable
AL-H
AL-L
and manual controls, the valve control is also able to forcibly switch to manual control (fixing the openness of the
valve, unit: % from valve fully closed to fully open) when in PID control mode. You simply need to press
control mode to switch to manual mode and A/M indicator will be On. Press
indicator will be Off.
Upper/Lower Limits of Valve Openness
Assume we would like the maximum openness of the valve to be 80% and the minimum to be 20%, set the parameter
as 80 and
as 20, and the valve openness of PID control, programmable control and manual control
will fall within this range.
RS-485 Communication
1. Supports transmission speed 2,400bps, 4,800bps, 9,600bps, 19,200bps and 38,400bps; does not support
communication format 7, N, 1/8, E, 2/8, O, 2. Communication protocol: Modbus (ASCII or RTU). Function: 03H
(able to read max. 8 words in the register), 06H (able to write 1 word into the register), 01H (able to read max. 16
bits of data), 05H (able to write 1 bit into the register).
2. Address and content of the data register.
Address
Content
1000H
Present temperature value (PV)
1001H
Set point (SV)
1002H
Upper limit of temperature range
is set as 2, it refers to
1003H
Lower limit of temperature range
1004H
Input sensor type
1005H
Control method
is
1006H
Selecting heating/cooling control
1009H
Proportion band value
100AH
Ti value
100BH
Td value
100CH
Default integration value
Offset compensation value for
100DH
proportional control (when Ti = 0)
1010H
SV of output hysteresis
1012H
Read/write of output percentage
Upper limit regulation for analog linear
1014H
output
Lower limit regulation for analog linear
1015H
output
1016H
Temperature offset regulation value
1017H
Analog decimal point setting
1018H
Time from valve fully closed to fully open
1019H
DeadBand setting of valve
101AH
Upper limit for valve feedback signal
101BH
Lower limit for valve feedback signal
101CH
PID group setting
101DH
SV for the corresponding PID setting
101EH
Upper limit for control output
101FH
Lower limit for control output
1020H
Output mode for alarm 1
1021H
Output mode for alarm 2
1023H
System alarm setting
refers to
1024H
Upper limit for alarm 1
1025H
Lower limit for alarm 1
1026H
Upper limit for alarm 2
1027H
Lower limit for alarm 2
102AH
Read/write LED status
102BH
Read/write key status
102CH
Panel lock status
102FH
Software version
1030H
No. of start pattern
1040H ~
Number of steps in a pattern
1047H
1050H ~
Additional number of cycles for a pattern
1057H
1060H ~
No. of the link pattern for the current
1067H
pattern
2000H ~
SV temperature for pattern0 ~ 7
203FH
SV for pattern 0 is set in 2000H ~ 2007H
Execution time for pattern 0 ~ 7
2080H ~
Time for pattern 0 is set in 2080H ~
20BFH
2087H
3. Address and content of the bit register (read bits are stored starting from LAB and written data is FF00H, set the
bit as 1. 0000H sets the bit data as 0.)
0810H
Selecting communication write-in
0811H
Selecting temperature unit
0812H
Position of the decimal point
0813H
Read/write auto-tuning (AT)
0814H
RUN/STOP of the control
0815H
Programmable control RUN/STOP
0816H
Programmable control RUN/PAUSE
0817H
Read/write valve feedback
0818H
Read/write AT of valve feedback
4. Communication transmission format: command 01: read bit, 05: write bit, 03: read word, 06: write word.
ASCII Mode
Machine address 1
Machine address 0
as "On", can be set automatically or manually.
Read start address
as "On", can be set automatically or manually.
Read length of
data/bit (word/bit)
in PID
again to return to PID control and A/M
LRC check: Sum up from "machine address" to "data content", e.g. 01H + 03H + 10H + 00H + 00H + 02H = 16H.
Obtain 2's complement EA.
RTU Mode
Machine address
address of data
Read length of
data (bit/word)
CRC low byte
CRC high byte
Explanation
Unit: 0.1 degree, updated every 0.4 second.
The read values below indicate the occurrence of errors:
8002H: temperature not acquired yet
CRC (Cyclical Redundancy Check) is obtained by the following steps.
8003H: temperature sensor not connected
1. Load in a 16-bit register FFFFH as the CRC register.
8004H: wrong sensor type
2. Do an exclusive OR operation of the first byte of the data and low byte of CRC register, and place the operation
8006H: unable to acquire temperature, ADC input error
8007H: unable to read/write the memory
result back to the CRC register.
3. Right shift the bits in the CRC register and fill the high bits with "0". Check the removed lowest bit.
Unit: 0.1 degree
The content shall not be bigger than the range.
4. If the removed lowest bit is "0", repeat step 3. Otherwise, do an exclusive OR operation of the CRC register and the
The content shall not be smaller than the range.
value A001H and place the operation result back to the CRC register.
See "Types of Temperature Sensors and Temperature Range" table.
5. Repeat step 3 and 4 until the 8 bits (1 byte) are all right shifted.
0: PID; 1: On/Off; 2: manual control; 3: PID programmable control
6. Repeat step 2 and 5 and calcualte all the bits to obtain CRC check.
0: heating; 1: cooling
0.1 ~ 999.9
Please be aware of the high/low byte transmission order in the CRC register.
0 ~ 9,999
0 ~ 9,999
0 ~ 100%, unit: 0.1%
1. Insert DTV into the panel cutout
0 ~ 100%, unit: 0.1%
2. Insert the mounting bracket into the mounting
0 ~ 9,999
3. Push the mounting bracket forward until the
Unit: 0.1%, only applicable in manual control mode
1 scale = 2.8μA = 1.3mV
4. Tighten the screw.
1 scale = 2.8μA = 1.3mV
-99.9 ~ +99.9, unit: 0.1
0 ~ 3
0.1 ~ 999.9
0 ~ 100%, unit: 0.1%
0 ~ 1,024
0 ~ 1,024
0 ~ 4
In valid range. Unit: 0.1
DTV4896
Lower limit for control output ~ 100%, unit: 0.1%
0 ~ Upper limit for control output, unit: 0.1%
See "Alarm Output" section.
See "Alarm Output" section.
0: None (default); 1 ~ 2: Set alarm 1 ~ alarm 2
See "Alarm Output" section.
See "Alarm Output" section.
See "Alarm Output" section.
See "Alarm Output" section.
b0: °F; b1: °C; b2: ALM2; b3: x; b4: OUT1; b5: OUT2; b6: AT; b7: ALM1
b0: Set; b1: Select; b2: Up; b3: Down; 0 refers to push.
0: normal; 1: lock all; 11: SV adjustable; 111: SV adjustable, A/M
available
V1.00 refers to 0x100
0 ~ 7
0 ~ 7 = N refers to the pattern will be executed from step 0 to step N.
DTV4896/DTV9696
0 ~ 99 refers to the pattern will be executed for 1 ~ 100 times.
0 ~ 8. 8 refers to end of the program; 0 ~ 7 refers to the next pattern No.
following the current pattern.
-999 ~ 9,999
0 ~ 900 (Every scale = 1 minute)
Communication write-in forbidden: 0 (default), allowed: 1
0: °F; 1: °C/linear input (default)
For normal input (default)
0 or 1. Available for all modes except for thermocouple type B, S, R.
0: AT stops (default); 1: AT starts
0: stop; 1: run (default)
0: run (default); 1: stop
0: run (default); 1: pause
0: without feedback (default); 1: with feedback
0: AT stops (default); 1: AT starts
Read Command
Read Response Message
Write Command
Start word
'：'
'：'
Start word
'：'
'：'
Start word
'0'
'0'
Machine address 1
'0'
'0'
Machine address 1
'1'
'1'
Machine address 0
'1'
'1'
Machine address 0
Command 1
'0'
'0'
Command 1
'0'
'0'
Command 1
Command 0
'3'
'1'
Command 0
'3'
'1'
Command 0
'1'
'0'
Length of response
'0'
'0'
'0'
'8'
data (byte)
'4'
'2'
Write data address
of data/bit
'0'
'1'
'0'
'1'
'0'
'0'
Data content in
'1'
'7'
1000H/081xH
'0'
'0'
'F'
'0'
'0'
'0'
'4'
'1'
Write data content
'0'
'0'
'0'
'2'
'9'
Data content in
'0'
LRC1 check
'E'
'D'
1001H
'0'
LRC1
LRC0 check
'A'
'C'
'0'
LRC 0
End word 1
CR
CR
LRC1 check
'0'
'E'
End word 1
End word 0
LF
LF
LRC0 check
'3'
'3'
End word 0
End word 1
CR
CR
End word 0
LF
LF
Read Command
Read Response Message
Write Command
01H
01H
Machine address
01H 01H Machine address
Command
03H
01H
Command
03H 01H
Command
Read start
10H
08H
Length of response
Write data
04H
02H
data (byte)
address
00H
10H
00H
00H
01H 17H
Write data
Data content 1
02H
09H
F4H 01H
content
C0H
BBH
03H
CRC low byte
Data content 2
CBH
A9H
20H
CRC high byte
CRC low byte
BBH 77H
CRC high byte
15H 88H
How to Mount
How to Install Mounting Bracket
groove at the top and bottom of DTV.
bracket stops at the panel wall.
Dimensions
DTV9696
Panel Cutout
Terminals
DTV4896R/DTV9696R
48*96
96*96
110.0 min.
60.0 min.
+0.6
44.5
0
+0.6
91
0
How to Set up Current Input
Current input (4 ~ 20mA, 0 ~ 20mA)
JU MP ER
JP1
PIN HEADER
DE FA U LT SE TTI NG
The content of this instruction sheet may be revised without prior notice. Please consult our distributors or
download the most updated version at http://www.delta.com.tw/industrialautomation
Write Response Message
'：'
'：'
Start word
'：'
'：'
'0'
'0'
Machine address 1
'0'
'0'
'1'
'1'
Machine address 0
'1'
'1'
'0'
'0'
Command 1
'0'
'0'
'6'
'5'
Command 0
'6'
'5'
'1'
'0'
'1'
'0'
'0'
'8'
'0'
'8'
Write data address
'0'
'1'
'0'
'1'
'1'
'0'
'1'
'0'
'0'
'F'
'0'
'F'
'3'
'F'
'3'
'F'
Write data content
'E'
'0'
'E'
'0'
'8'
'0'
'8'
'0'
'F'
'E'
LRC1
'F'
'E'
'D'
'3'
LRC 0
'D'
'3'
CR
CR
End word 1
CR
CR
LF
LF
End word 0
LF
LF
Write Response Message
01H
01H
Machine address
01H
01H
06H
05H
Command
06H
05H
10H
08H
Write data
10H
08H
address
01H
10H
01H
10H
03H
FFH
Write data
03H
FFH
20H
00H
content
20H
00H
DDH
8FH
CRC low byte
DDH
8FH
E2H
9FH
CRC high byte
E2H
9FH
J UMP E R
JP1
P IN HE A DE R
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