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Mode Alarm Type Alarm Output Operation
8
Standby upper/lower limit alarm: Alarm will be enabled when the PV reaches SV and
exceeds SV + AL-H or falls below SV – AL-L.
ON
OFF
AL-L
AL-H
SV
9
Upper limit standby alarm: Alarm will be enabled when the PV reaches SV and exceeds
SV + AL-H.
ON
OFF
SV AL-H
10
Lower limit standby alarm: Alarm w
ill be enabled when the PV reaches SV and falls below
SV – AL-L.
ON
OFF
AL-L SV
11
Upper limit hysteresis alarm: Alarm will be enabled when the PV exceeds SV + AL-H.
Alarm will be disabled when the PV falls below SV + AL-L.
ON
OFF
AL-L
AL-H
12
Lower limit hysteresis alarm: Alarm will be enabled when the PV falls below SV – AL-H.
Alarm will be disabled when the PV exceeds SV – AL-L.
ON
OFF
AL-L
AL-H
14 Programmable STOP: Alarm will be enabled when the program is in STOP status.
15
Programmable RAMP UP: Alarm will be enabled when the program is in RAMP UP
status.
16
Programmable RAMP DOWN: Alarm will be enabled when the program is in RAMP
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
is set as 2, it refers to
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
is
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. refers to
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.
When
is set as “On”, it refers to “with feedback signals” and the following parameters will be displayed.
a) : Automatically adjusting the upper/lower limit of the valve feedback. This parameter will only be displayed
when
is set as . When this parameter is set as On, the relay will enable the forward and reverse
running of the motor in order to calculate the time needed from the valve fully closed to fully open and the
feedback signal of fully closed and open. The feedback signal is the hardware D/A value of the valve control,
which is for the calculation of the valve controller.
b) : Upper limit of the valve signal. Set as “On”, can be set automatically or manually.
c)
: Lower limit of the valve signal. Set as ”On”, can be set automatically or manually.
Auto/Manual Mode Switch
A/M indicator On refers to manual mode; A/M indicator Off refers to auto mode. Besides On/Off, PID, programmable
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
in PID
control mode to switch to manual mode and A/M indicator will be On. Press
again to return to PID control and A/M
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 Explanation
1000H Present temperature value (PV)
Unit: 0.1 degree, updated every 0.4 second.
The read values below indicate the occurrence of errors:
8002H: temperature not acquired yet
8003H: temperature sensor not connected
8004H: wrong sensor type
8006H: unable to acquire temperature, ADC input error
8007H: unable to read/write the memory
1001H Set point (SV) Unit: 0.1 degree
1002H Upper limit of temperature range The content shall not be bigger than the range.
1003H Lower limit of temperature range The content shall not be smaller than the range.
1004H Input sensor type See “Types of Temperature Sensors and Temperature Range" table.
1005H Control method 0: PID; 1: On/Off; 2: manual control; 3: PID programmable control
1006H Selecting heating/cooling control 0: heating; 1: cooling
1009H Proportion band value 0.1 ~ 999.9
100AH Ti value 0 ~ 9,999
100BH Td value 0 ~ 9,999
100CH Default integration value 0 ~ 100%, unit: 0.1%
100DH
Offset compensation value for
proportional control (when Ti = 0)
0 ~ 100%, unit: 0.1%
1010H SV of output hysteresis 0 ~ 9,999
1012H Read/write of output percentage Unit: 0.1%, only applicable in manual control mode
1014H
Upper limit regulation for analog linear
output
1 scale = 2.8μA = 1.3mV
1015H
Lower limit regulation for analog linear
output
1 scale = 2.8μA = 1.3mV
1016H Temperature offset regulation value -99.9 ~ +99.9, unit: 0.1
1017H Analog decimal point setting 0 ~ 3
1018H Time from valve fully closed to fully open 0.1 ~ 999.9
1019H DeadBand setting of valve 0 ~ 100%, unit: 0.1%
101AH Upper limit for valve feedback signal 0 ~ 1,024
101BH Lower limit for valve feedback signal 0 ~ 1,024
101CH PID group setting 0 ~ 4
101DH SV for the corresponding PID setting In valid range. Unit: 0.1
101EH Upper limit for control output Lower limit for control output ~ 100%, unit: 0.1%
101FH Lower limit for control output 0 ~ Upper limit for control output, unit: 0.1%
1020H Output mode for alarm 1 See “Alarm Output” section.
1021H Output mode for alarm 2 See “Alarm Output” section.
1023H System alarm setting 0: None (default); 1 ~ 2: Set alarm 1 ~ alarm 2
1024H Upper limit for alarm 1 See “Alarm Output” section.
1025H Lower limit for alarm 1 See “Alarm Output” section.
1026H Upper limit for alarm 2 See “Alarm Output” section.
1027H Lower limit for alarm 2 See “Alarm Output” section.
102AH Read/write LED status b0: °F; b1: °C; b2: ALM2; b3: x; b4: OUT1; b5: OUT2; b6: AT; b7: ALM1
102BH Read/write key status b0: Set; b1: Select; b2: Up; b3: Down; 0 refers to push.
102CH Panel lock status
0: normal; 1: lock all; 11: SV adjustable; 111: SV adjustable, A/M
available
102FH Software version V1.00 refers to 0x100
1030H No. of start pattern 0 ~ 7
1040H ~
1047H
Number of steps in a pattern 0 ~ 7 = N refers to the pattern will be executed from step 0 to step N.
1050H ~
1057H
Additional number of cycles for a pattern 0 ~ 99 refers to the pattern will be executed for 1 ~ 100 times.
1060H ~
1067H
No. of the link pattern for the current
pattern
0 ~ 8. 8 refers to end of the program; 0 ~ 7 refers to the next pattern No.
following the current pattern.
2000H ~
203FH
SV temperature for pattern0 ~ 7
SV for pattern 0 is set in 2000H ~ 2007H
-999 ~ 9,999
2080H ~
20BFH
Execution time for pattern 0 ~ 7
Time for pattern 0 is set in 2080H ~
2087H
0 ~ 900 (Every scale = 1 minute)
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 Communication write-in forbidden: 0 (default), allowed: 1
0811H Selecting temperature unit 0: °F; 1: °C/linear input (default)
0812H Position of the decimal point 0 or 1. Available for all modes except for thermocouple type B, S, R.
0813H Read/write auto-tuning (AT) 0: AT stops (default); 1: AT starts
0814H RUN/STOP of the control 0: stop; 1: run (default)
0815H Programmable control RUN/STOP 0: run (default); 1: stop
0816H Programmable control RUN/PAUSE 0: run (default); 1: pause
0817H Read/write valve feedback 0: without feedback (default); 1: with feedback
0818H Read/write AT of valve feedback 0: AT stops (default); 1: AT starts
4. Communication transmission format: command 01: read bit, 05: write bit, 03: read word, 06: write word.
ASCII Mode
Read Command Read Response Message Write Command Write Response Message
Start word
’：’
’：’
Start word
’：’
’：’
Start word
’：’
’：’
Start word
’：’
’：’
Machine address 1
‘0’
‘0’
Machine address 1
‘0’
‘0’
Machine address 1
‘0’
‘0’
Machine address 1
‘0’
‘0’
Machine address 0
‘1’
‘1’
Machine address 0
‘1’
‘1’
Machine address 0
‘1’
‘1’
Machine address 0
‘1’
‘1’
Command 1 ‘0’
‘0’
Command 1 ‘0’
‘0’
Command 1 ‘0’
‘0’
Command 1 ‘0’
‘0’
Command 0 ‘3’
‘1’
Command 0 ‘3’
‘1’
Command 0 ‘6’
‘5’
Command 0 ‘6’
‘5’
‘1’
‘0’
‘0’
‘0’
‘1’
‘0’
‘1’
‘0’
‘0’
‘8’
Length of response
data (byte)
‘4’
‘2’
‘0’
‘8’
‘0’
‘8’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
Read start address
of data/bit
‘0’
‘0’
‘1’
‘7’
Write data address
‘1’
‘0’
Write data address
‘1’
‘0’
‘0’
‘0’
‘F’
‘0’
‘0’
‘F’
‘0’
‘F’
‘0’
‘0’
Data content in
1000H/081xH
‘4’
‘1’
‘3’
‘F’
‘3’
‘F’
‘0’
‘0’
‘0’
‘E’
‘0’
‘E’
‘0’
Read length of
data/bit (word/bit)
‘2’
‘9’
‘0’
Write data content
‘8’
‘0’
Write data content
‘8’
‘0’
LRC1 check ‘E’
‘D’
‘0’
LRC1 ‘F’
‘E’
LRC1 ‘F’
‘E’
LRC0 check ‘A’
‘C’
Data content in
1001H
‘0’
LRC 0 ‘D’
‘3’
LRC 0 ‘D’
‘3’
End word 1 CR
CR
LRC1 check ‘0’
‘E’
End word 1 CR
CR
End word 1 CR
CR
End word 0 LF
LF
LRC0 check ‘3’
‘3’
End word 0 LF
LF
End word 0 LF
LF
End word 1 CR
CR
End word 0 LF
LF
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
Read Command Read Response Message Write Command Write Response Message
Machine address
01H
01H
Machine address
01H
01H
Machine address
01H
01H
Machine address
01H
01H
Command 03H
01H
Command 03H
01H
Command 06H
05H
Command 06H
05H
10H
08H
10H
08H
10H
08H
Read start
address of data
00H
10H
Length of response
data (byte)
04H
02H
Write data
address
01H
10H
Write data
address
01H
10H
00H
00H
01H
17H
03H
FFH
03H
FFH
Read length of
data (bit/word)
02H
09H
Data content 1
F4H
01H
Write data
content
20H
00H
Write data
content
20H
00H
CRC low byte C0H
BBH
03H
CRC low byte
DDH
8FH
CRC low byte
DDH
8FH
CRC high byte
CBH
A9H
Data content 2
20H
CRC high byte
E2H
9FH
CRC high byte
E2H
9FH
CRC low byte BBH
77H
CRC high byte 15H
88H
CRC (Cyclical Redundancy Check) is obtained by the following steps.
1. Load in a 16-bit register FFFFH as the CRC register.
2. Do an exclusive OR operation of the first byte of the data and low byte of CRC register, and place the operation
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.
4. If the removed lowest bit is “0”, repeat step 3. Otherwise, do an exclusive OR operation of the CRC register and the
value A001H and place the operation result back to the CRC register.
5. Repeat step 3 and 4 until the 8 bits (1 byte) are all right shifted.
6. Repeat step 2 and 5 and calcualte all the bits to obtain CRC check.
Please be aware of the high/low byte transmission order in the CRC register.
How to Mount How to Install Mounting Bracket
1. Insert DTV into the panel cutout
2. Insert the mounting bracket into the mounting
groove at the top and bottom of DTV.
3. Push the mounting bracket forward until the
bracket stops at the panel wall.
4. Tighten the screw.
Dimensions
DTV4896 DTV9696
Panel Cutout Terminals
DTV4896/DTV9696 DTV4896R/DTV9696R
60.0 min.
120.0 min.
110.0 min.
120.0 min.
48*96
96*96
44.5
+0.6
0
91.5
+0.6
0
91
+0.6
0
91
+0.6
0
How to Set up Current Input
For normal input (default) Current input (4 ~ 20mA, 0 ~ 20mA)
JUMPER
PIN HEADER
JP1
DEFAULT SETTING
JUMPER
PIN HEADER
JP1
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