Delta Electronics DTE User Manual

Series Temperature Controller

Instruction Sheet

Thank you very much for choosing Delta DTE series temperature controller. Please read this instruction sheet carefully before using your DTE to ensure proper operation. Keep this instruction sheet handy for quick reference.

 Warning

DANGER! CAUTION! ELECTRIC SHOCK!

DTE is an OPEN-TYPE device and therefore should be installed in an enclosure free of airborne dust, humidity, electric shock and vibration. The enclosure should prevent non-maintenance staff from operating the device (e.g. key or specific tools are required for opening the enclosure) in case danger and damage on the device may occur.

1. Prevent dust or metallic debris from falling into the device and cause malfunctions. DO NOT board of DTE without being permitted. DO NOT

2. Keep away from high-voltage and high-frequency environment during the installation in case of interference. Prevent using the device in premises which contain:

(a) dust or corrosive gas; (b) high humidity and high radiation; (c) shock and vibration.

3. The power has to be switched off when wiring or changing the temperature sensor.

4. When installing the circuit board of the accessory, please make sure the power of the main unit is switched off and insert the accessory into the correct slot on the main unit.

5. Make sure to use compensation wire which matches the thermocouple or platinum resistance when extending or connecting the thermocouple or platinum resistance.

6. Keep the wire as short as possible when wiring a sensor to the controller. Separate the power cable and load wire in order to prevent interference and induced noise.

7. Make sure the power cables and signal device are installed correctly before switching on the power; otherwise serious damage may occur.

8. DO NOT

9. Please wait for 1 minute after the power is switched off to allow the capacitor to discharge and DO NOT wiring within this period.

10. DO NOT

11. Please place DTE with other heating objects (e.g. power supply) within proper distance while installing DTE.

touch the terminal or repair the device when the power is on; otherwise an electric shock may occur.

touch the internal terminal when DTE is either switched on or off in case you may damage the circuit.

use empty terminals.

 Ordering Information!

Series name DTE: Delta E series temperature controller

1 Device type

2 3

1: main unit 2: accessory

0T: 4-channel TC 0P: 4-channel PT 0V: 4 channels of voltage pulse output

0T: 4-channel TC 0P: 4-channel PT

0C: 4 channels of linear current output 0R: 4 channels of relay output 0L: 4 channels of linear voltage output CT: 4 channels of current transformer sensors DS: Display and setup module

 Functions & Electrical Specifications!

Power input DC 24V, isolated switching power supply

Voltage range 90% ~ 110% rated voltage

Power consumption Max. 10W + 3W × number of DTC2000 controllers connected in parallel (Max. 7)

Input sensor

Sampling cycle Thermocouple or platinum resistance: 1.0 second/all input

Control method PID, PID programmable, manual, ON/OFF

Output accessories (optional)

Output functions

Alarm modes 12 alarm modes available

Communication RS-485 digital communication; supports baud rate 2,400bps ~ 115,200bps

Communication protocol

Extension port

Vibration resistance 10 ~ 55Hz 10m/s

Shock resistance Max. 300m/s2 3 axes 6 directions, 3 times each

Ambient temperature 0°C ~ +50°C

Storage temperature -20°C ~ +65°C

Thermocouple: K, J, T, E, N, R, S, B, L, U, TXK

Platinum resistance: Pt100, JPt100, Cu50

Relay output: SPST, Max. AC 250V load, 3A resistive load

Voltage pulse output: DC 24V, Max. 40mA current output

Current output: DC 4 ~ 20mA output (resistive load < 500Ω); for OUT1 and OUT2 only

Analog voltage output: 0 ~ 10V (resistive load > 1,000Ω); for OUT1 and OUT2 only

Control output, alarm output or proportional output (proportional output is only applicable in the model with linear voltage and current output for OUT1, OUT2)

Supports Modbus ASCII/RTU

The extension port transmits 24V power supply and communication signals to extension module DTC2000.

3 axes 10mins

modify or uninstall the circuit

touch the internal

Operation altitude < 2,000m

Ambient humidity 35% to 85% RH (non-condensing)

Pollution degree 2

 Product Profile & Outline!

DTE10T/P

1 I/O terminals

2 Status LED

3 Display and setup unit

4 DIN rail clip

5 Power input port

6 RS-485 communication port

7 Extension module fixing clip

8 Extension port

 Panel Layout!

 Input

The standard DTE main unit is attached with 4 channels of inputs. You can purchase additional DTE20T or DTE20P to expand the number of input channels. DTE supports maximum 8 channels of inputs which belong to group INA and group INB. Each group possesses 4 input channels.

DTE series supports the following input sensors:

Input Sensor Type Register Value Range

For DTE10P / DTE20P

Temperature measurement resistance (Cu50) 13 -50 ~ 150°C

Platinum resistance (Pt100) 12 -200 ~ 600°C

Platinum resistance (JPt100) 11 -20 ~ 400°C

For DTE10T / DTE20T

Thermocouple TXK type 10 -200 ~ 800°C

Thermocouple U type 9 -200 ~ 500°C

Thermocouple L type 8 -200 ~ 850°C

Thermocouple B type 7 100 ~ 1,800°C

Thermocouple S type 6 0 ~ 1,700°C

Thermocouple R type 5 0 ~ 1,700°C

Thermocouple N type 4 -200 ~ 1,300°C

Thermocouple E type 3 0 ~ 600°C

Thermocouple T type 2 -200 ~ 400°C

Thermocouple J type 1 -100 ~ 1,200°C

Thermocouple K type 0 -200 ~ 1,300°C

Note: The default setting in DTE10T is “thermocouple K type”. The default setting in DTE10P is “Pt100".

Communication address: Input sensor types at H10A0 ~ H10A7; input upper limits at H1010 ~ H1017; input lower limits at H1018 ~ H101F.

 Output

DTE supports maximum 16 channels of outputs, belonging to output groups OUT1, OUT2, SUB1 and SUB2, each group with 4 channels. See the explanations below for how input channels correspond to output groups.

 Without group INB (4 channels of input): Every channel corresponds to 2 groups of output and 2 groups of alarms. OUT1 and

SUB1 are for control output, and OUT1 can be used for proportional output. OUT2 and SUB2 are fixed for alarm output.

 With group INB (8 channels of input): Every channel is paired with 2 groups of outputs. OUT1 and OUT2 are used for control

output or proportional output of CH1 ~ CH8. SUB1 and SUB2 are used for control output or alarm output.

See Table 1 for the relations between input and output.

Output Group INA (CH1 ~ CH4) INA (CH1 ~ CH4) INB (CH5 ~ CH8)

OUT1

OUT2 Alarm 1 output No corresponding output

SUB1 Control output Control output or alarm output No corresponding output

SUB2 Alarm 2 output No corresponding output Control output or alarm output

4 channels of input 8 channels of input

Main control output or

proportional output

Main control output or proportional

output

Table 1

No corresponding output

Main control output or proportional

output

Note: SUB1 and SUB2 do not support DTE20L and DTE20C. Please install the optional output modules you purchase into

the correct slot.

Communication Address of Output & How to Set up Parameters:

See Table 2 for the communication addresses of output and Table 3 for the definition of the value in the address.

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

OUT1, OUT2 H10A8 H10A9 H10AA H10AB H10AC H10AD H10AE H10AF

SUB1, SUB2 H10B0 H10B1 H10B2 H10B3 H10B4 H10B5 H10B6 H10B7

OUT1, OUT2** Heating control Cooling control Proportional output Disable output

SUB1, SUB2** Heating control Cooling control Alarm output* Disable output

Value = 0 Value = 1 Val ue = 2 Value = 3

INA INB

Table 2

Table 3

*When there are only 4 channels of inputs, SUB1 cannot be used for alarm output but heating/cooling control only.

**When there are only 4 channels of inputs, OUT2 and SUB2 cannot be set up by the user but set up automatically as "alarm

output” by the controller.

Control Output:

DTE offers PID control, ON/OFF control, manual control and programmable PID control. Control output methods are set at address H10B8 ~ H10BF (default = 0: PID), PID parameters at H1028 ~ H105F, ON/OFF parameters at H1058 ~ H106F, and manual control parameters at H1070 ~ H107F.

Alarm Output:

DTE offers 12 alarm modes. The alarm modes are set up at address H10C0 ~ H10C7, upper limits at H1080 ~ H1087 and lower limits at H1088 ~ H108F.

SV Alarm Mode Alarm Output Operation

0 No alarm Off

Alarm output is enabled when the temperature reaches upper and lower

limits: The alarm will be enabled when PV exceeds SV + AL-H or falls below SV – AL-L.

Alarm output will be enabled when the temperature reaches the upper limit:

The alarm will be enabled when the PV exceeds SV + AL-H.

Alarm output will be enabled when the temperature reaches the lower limit:

The alarm will be enabled when the PV falls below SV – AL-L.

Alarm output will be enabled when the PV is between SV + AL-H and SV –

AL-L.

Alarm output will be enabled when the temperature reaches the absolute

value of the upper and lower limits: The alarm will be enabled when the PV exceeds AL-H or falls below AL-L.

Alarm output will be enabled when the temperature reaches the absolute

value of the upper limit: The alarm will be enabled when the PV exceeds AL-H.

Alarm output will be enabled when the temperature reaches the absolute

value of the lower limit: The alarm will be enabled when the PV falls below AL-L.

Upper/lower limit standby alarm: The alarm will be enabled when the PV

reaches SV and further exceeds SV + AL-H or falls below SV – AL-L.

Upper limit standby alarm: The alarm will be enabled when the PV reaches

SV and further exceeds SV + AL-H.

Lower limit standby alarm: The alarm will be enabled when the PV reaches

SV and further falls below SV – AL-L.

Upper limit hysteresis alarm: The alarm will be enabled when the PV exceeds

SV + AL-H. The alarm will be disabled when the PV falls below SV + AL-L.

Lower limit hysteresis alarm: The alarm will be enabled when the PV falls below SV – AL-H. The alarm will be disabled when the PV exceeds SV –

AL-L.

OFF

AL-L SV AL-H

AL-H

AL-L

AL-H

SV AL-H

AL-L

AL-H

AL-L SV

AL-L

AL-L SV

AL-H

 LED Display

PWR: On B DTE is powered.

RUN: On B Any of the channel is executing.

COM: Flashing B Communication in progress

ERR: Indicating errors (red)

ERR LED is on indicates one of the following errors occur, and the output has to be disabled.

1. Memory EEPROM error.

2. Any of the input points is not connected.

3. Any of the input points exceeds the setup range.

4. Any of the input temperatures has not been stabilized.

 Synchronous Communication Protocol & Auto ID Setup

This function allows the auto setup of communication protocol in extension module DTC2000 and DTC2001 following the communication protocol set in the DTE main unit. The station IDs of DTC decrease. See below for the steps.

1. Set the auto communication ID of DTE as “1” (communication address: H10F8).

2. Switch off DTE. Connect DTE with extension module DTC2000, DTC2001 and switch on DTE again.

3. Default communication protocol: 9,600bps, 7 bits, Even, 1 stop bit, communication address = 01.

4. This function will consume 3 ~ 5 seconds more when you switch on DTE.

 RS-485 Communication

1. DTE supports baud rates 2,400/4,800/9,600/19,200/38,400/57,600/115,200 bps and does not support communication format 7, N, 1/8, E, 2/8, O, 2. Communication protocol = Modbus ASCII or RTU.

2. Function codes: H03 = read maximum 8 words in the register; H06 = write 1 word into the register.

3. Address and contents: Every parameter has 2 communication addresses. One is numbered by the function of the parameter, and the other is by the order of channel (as shown in the table below).

Content Explanation CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

Present temperature value/input error

Unit; 0.1 See Table 5

H1000

(H1100)

code

Set temperature value

Max. temperature value

Min. temperature value

Error temperature value

Proportional band value (Pb)

Unit: 0.1

Disabled when higher than default value

Disabled when lower than default value

-999 ~ +999 Unit: 0.1°C

0 ~ 9,999 Unit: 0.1

Ti value 0 ~ 9,999

Td value 0 ~ 9,999

Integration default

Proportional control offset error value, when Ti = 0

Proportional band coefficient of output 1 and output 2

0.0 ~ 100.0% Unit: 0.1%

0.01 ~ 99.99 Unit: 0.01

Dead band of control output 1 &

-99.9 ~ 999.9

output 2.

Hysteresis for output 1

Hysteresis for output 2

Read/write output 1 value

Read/write output 2 value

Upper limit for alarm output

0 ~ 9,999 Unit: 0.1%

Unit: 0.1 %

Alarm enabled when temperature exceeds upper limit

H1008

(H1101)

H1010

(H1102)

H1018

(H1103)

H1020

(H1104)

H1028

(H1105)

H1030

(H1106)

H1038

(H1107)

H1040

(H1108)

H1048

(H1109)

H1050

(H110A)

H1058

(H110B)

H1060

(H110C)

H1068

(H110D)

H1070

(H110E)

H1078

(H110F)

H1080

(H1110)

Alarm enabled Lower limit for alarm output

when temperature

falls below lower

H1088

(H1111)

limit

Tuning for upper limit of analog output

Tuning for lower limit of analog output

Input sensor type See “Input” section

Current (4 ~ 20mA)

or voltage output

tuning

Current (4 ~ 20mA)

or voltage output

tuning

H1090

(H1112)

H1098

(H1113)

H10A0

(H1114)

0: heating Output function for output 1

1: cooling

2: proportional

H10A8

(H1115)

output

Output function for output 2

0: heating (default)

1: cooling

2: alarm

H10B0

(H1116)

0: PID

Control method

1: ON-OFF

2: manual

3: PID

H10B8

(H1117)

programmable

Alarm 1 output mode

Alarm 2 output mode

Heating/cooling cycle for output 1

Heating/cooling cycle for output 2

See “Alarm Output”

section

See “Alarm Output”

section

1 ~ 99 seconds

0 = 0.5 second

1 ~ 99 seconds

0 = 0.5 second

H10C0

(H1118)

H10C4

(H1518)

H10C8

(H1119)

H10D0

(H111A)

INA INB

H1001

(H1200)

H1009

(H1201)

H1011

(H1202)

H1019

(H1203)

H1021

(H1204)

H1029

(H1205)

H1031

(H1206)

H1039

(H1207)

H1041

(H1208)

H1049

(H1209)

H1051

(H120A)

H1059

(H120B)

H1061

(H120C)

H1069

(H120D)

H1071

(H120E)

H1079

(H120F)

H1081 (1210)

H1089

(H1211)

H1091

(H1212)

H1099

(H1213)

H10A1

(H1214)

H10A9

(H1215)

H10B1

(H1216)

H10B9

(H1217)

H10C1

(H1218)

H10C5

(H1618)

H10C9

(H1219)

H10D1

(H121A)

H1002

(H1300)

H100A

(H1301)

H1012

(H1302)

H101A

(H1303)

H1022

(H1304)

H102A

(H1305)

H1032

(H1306)

H103A

(H1307)

H1042

(H1308)

H104A

(H1309)

H1052

(H130A)

H105A

(H130B)

H1062

(H130C)

H106A

(H130D)

H1072

(H130E)

H107A

(H130F)

H1082

(H1310)

H108A

(H1311)

H1092

(H1312)

H109A

(H1313)

H10A2

(H1314)

H10AA

(H1315)

H10B2

(H1316)

H10BA

(H1317)

H10C2

(H1318)

H10C6

(H1718)

H10CA

(H1319)

H10D2

(H131A)

H1003

(H1400)

H100B

(H1401)

H1013

(H1402)

H101B

(H1403)

H1023

(H1404)

H102B

(H1405)

H1033

(H1406)

H103B

(H1407)

H1043

(H1408)

H104B

(H1409)

H1053

(H140A)

H105B

(H140B)

H1063

(H140C)

H106B

(H140D)

H1073

(H140E)

H107B

(H140F)

H1083

(H1410)

H108B

(H1411)

H1093

(H1412)

H109B

(H1413)

H10A3

(H1414)

H10AB

(H1415)

H10B3

(H1416)

H10BB

(H1417)

H10C3

(H1418)

H10C7

(H1818)

H10CB

(H1419)

H10D3

(H141A)

H1004

(H1500)

H100C

(H1501)

H1014

(H1502)

H101C

(H1503)

H1024

(H1504)

H102C

(H1505)

H1034

(H1506)

H103C

(H1507)

H1044

(H1508)

H104C

(H1509)

H1054

(H150A)

H105C

(H150B)

H1064

(H150C)

H106C

(H150D)

H1074

(H150E)

H107C

(H150F)

H1084

(H1510)

H108C

(H1511)

H1094

(H1512)

H109C

(H1513)

H10A4

(H1514)

H10AC

(H1515)

H10B4

(H1516)

H10BC

(H1517)

H10C4

(H1518)

H10CC

(H1519)

H10D4

(H151A)

H1005

(H1600)

H100D

(H1601)

H1015

(H1602)

H101D

(H1603)

H1025

(H1604)

H102D

(H1605)

H1035

(H1606)

H103D

(H1607)

H1045

(H1608)

H104D

(H1609)

H1055

(H160A)

H105D

(H160B)

H1065

(H160C)

H106D

(H160D)

H1075

(H160E)

H107D

(H160F)

H1085

(H1610)

H108D

(H1611)

H1095

(H1612)

H109D

(H1613)

H10A5

(H1614)

H10AD

(H1615)

H10B5

(H1616)

H10BD

(H1617)

H10C5

(H1618)

H10CD

(H1619)

H10D5

(H161A)

H1006

(H1700)

H100E

(H1701)

H1016

(H1702)

H101E

(H1703)

H1026

(H1704)

H102E

(H1705)

H1036

(H1706)

H103E

(H1707)

H1046

(H1708)

H104E

(H1709)

H1056

(H170A)

H105E

(H170B)

H1066

(H170C)

H106E

(H170D)

H1076

(H170E)

H107E

(H170F)

H1086

(H1710)

H108E

(H1711)

H1096

(H1712)

H109E

(H1713)

H10A6

(H1714)

H10AE

(H1715)

H10B6

(H1716)

H10BE

(H1717)

H10C6

(H1718)

H10CE

(H1719)

H10D6

(H171A)

H1007

(H1800)

H100F

(H1801)

H1017

(H1802)

H101F

(H1803)

H1027

(H1804)

H102F

(H1805)

H1037

(H1806)

H103F

(H1807)

H1010

(H1808)

H104F

(H1809)

H1057

(H180A)

H105F

(H180B)

H1067

(H180C)

H106F

(H180D)

H1077

(H180E)

H107F

(H180F)

H1087

(H1810)

H108F

(H1811)

H1097

(H1812)

H109F

(H1813)

H10A7

(H1814)

H10AF

(H1815)

H10B7

(H1816)

H10BF

(H1817)

H10C7

(H1818)

H10CF

(H1819)

H10D7

(H181A)

INA INB

Content Explanation CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

0: stop Run/Stop the control

1: executing

2: program stops

H10D8

(H111B)

H10D9

(H121B)

H10DA

(H131B)

H10DB

(H141B)

H10DC

(H151B)

H10DD

(H161B)

H10DE

(H171B)

H10DF

(H181B)

3: program pauses

Status of PID auto-tuning

Positive/negative proportional output

0: stop

1: executing

0: positive

1: negative (slope)

Other statuses Other statuses

Communication specifications

See Table 4

H10E0

(H111C)

H10E8

(H111D)

H10F0

Temperature

H10F8

Auto ID

setup

unit

H10E1

(H121C)

H10E9

(H121D)

H10F1

Open special

function

(H1234)

H10F9

Reserved

H10E2

(H131C)

H10EA

(H131D)

H10F2

Return to

default

(H1357)

H10FA

Baud rate

H10E3

(H141C)

H10EB

(H141D)

H10F3

Reserved

H10FB

ASCII = 0

RTU = 1

H10E4

(H151C)

H10EC

(H151D)

H10F4

Reserved

H10FC

8 bits=0 7 bits=1

H10E5

(H161C)

H10ED

(H161D)

H10F5

Reserved

H10FD

2 stop=0 1 stop=1

H10E6

(H171C)

H10EE

(H171D)

H10F6

Reserved

H10FE

Parity

H10E7

(H181C)

H10EF

(H181D)

H10F7

Reserved

H10FF

Address

1 ~ 247

Communication Parameter Setting:

Content 0 1 2 3 4 5 6

Baud rate 2,400bps 4,800bps 9,600bps 19,200bps 38,400bps 57,600bps 115,200bps

Parity bit None (N) Even (E) Odd (O)

Table 4

Error Codes:

The error codes can be read from address H1000 ~ H1007. When the input operation is in normal status, H1000 ~ H1007 are for input values. When input error occurs (except for stable status and input exceeding the range), DTE will read error codes in H8001 ~ H8002.

H1000 Error description

H8001 EEPROM cannot be written in.

H8002 Input sensor is not connected.

H8003 Group INB is not connected.

Table 5

Analog output current tuning scale: 1μA/scale

Analog output voltage tuning scale: 1mV/scale

Returning to Default Value: Write H1234 into address H10F1 and H1357 into address H10F2. Restart DTE.

Programmable Communication Parameter Setting:

INA INB

Content Explanation CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

Read remaining time of the step Unit: sec H111E H121E H131E H141E H151E H161E H171E H181E

Read remaining time of the step Unit: min H111F H121F H131F H141F H151F H161F H171F H181F

Read the NO. of the current pattern

0 ~ 7 H1120 H1220 H1320 H1420 H1520 H1620 H1720 H1820

Read the NO. of the current step 0 ~ 7 H1121 H1221 H1321 H1421 H1521 H1621 H1721 H1821

NO. of start pattern 0 ~ 7 H1122 H1222 H1322 H1422 H1522 H1622 H1722 H1822

NO. of start step 0 ~ 7 H1123 H1223 H1323 H1423 H1523 H1623 H1723 H1823

Programmable Parameter Setting:

Content Explanation

Max. number of steps in the pattern

Number of cycles of

pattern 0 ~ 7 execution

NO. of current link pattern

0 ~ 7 = N: The pattern executes from step 0 to N.

0 ~ 199: The pattern has been executed for 1 ~ 200 times

0 ~ 8: 8 refers to end of program; 0 ~ 7 refer to the NO. of next pattern

Pattern 0 Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5 Pattern 6 Pattern

H2068 H2069 H206A H206B H206C H206D H206E H206F

H2070 H2071 H2072 H2073 H2074 H2075 H2076 H2077

H2078 H2079 H207A H207B H207C H207D H207E H207F

Address Default Content Explanation

2000H ~ 203FH 0

2080H ~ 20BFH 0

Target temperatures for pattern 0 ~ 7 Pattern 0: 2000H ~ 2007H

Execution time for pattern 0 ~ 7 Pattern 0: 2080H ~ 2087H

Unit: 0.1°C

Time: 0 ~ 900 (Unit: 1 min)

4. Communication format: H03 = read bit data; H06 = write bit data

ASCII Mode:

Read Command Read Response Message Write Command Write Response Message

Start word ’:’ Start word ’:’ Start word ’:’ Start word ’:’

Machine address 1 ‘0’ Machine address 1 ‘0’ Machine address 1 ‘0’ Machine address 1 ‘0’

Machine address 0 ‘1’ Machine address 0 ‘1’ Machine address 0 ‘1’ Machine address 0 ‘1’

Command 1 ‘0’ Command 1 ‘0’ Command 1 ‘0’ Command 1 ‘0’

Command 0 ‘3’ Command 0 ‘3’ Command 0 ‘6’ Command 0 ‘6’

Read Command Read Response Message Write Command Write Response Message

‘1’ ‘0’ ‘1’ ‘1’

Length of response data

Read start address of

data/bit

‘0’

‘0’ ‘0’ ‘0’ ‘0’

‘0’ ‘1’

‘0’ ‘F’ ‘0’ ‘0’

Read length of data/bit

(word/bit)

‘0’

‘0’ ‘0’ ‘E’ ‘E’

‘2’ ‘0’

LRC1 check ‘E’ ‘0’ LRC1 check ‘F’ LRC1 check ‘F’

LRC0 check ‘A’

(byte)

Data content in H1000

Data content in H1001

‘4’ ‘0’ ‘0’

Data address

‘1’

‘4’ ‘3’ ‘3’

Write data content

‘8’

‘0’ LRC0 check ‘D’ LRC0 check ‘D’

End word 1 CR LRC1 check ‘0’ End word 1 CR End word 1 CR

End word 0 LF LRC0 check ‘3’ End word 0 LF End word 0 LF

End word 1 CR

End word 0 LF

LRC Check:

Sum up the contents from “machine address” to “data content”, e.g. H01 + H03 + H10 + H00 + H00 + H02 = H16. Obtain 2’scomplement H EA.

RTU Mode:

Read Command Read Response Message Write Command Write Response Message

Machine address H01 Machine address H01 Machine address H01 Machine address H01

Command H03 Command H03 Command H06 Command H06

Read start address of

data

Read length of data

(bit/word)

CRC low byte HC0 H03 CRC low byte HDD CRC low byte HDD

CRC high byte HCB

H10 H10 H10

Length of response

H00

H00 H01 H03 H03

H02

data (byte)

Data content 1

Data content 2

H04 Write data address

Write data content

HF4

Write data address

H01

Write data content

H20

H01

H20

H20 CRC high byte HE2 CRC high byte HE2

CRC low byte HBB

CRC high byte H15

CRC (Cyclical Redundancy Check) is obtained by the following steps:

unsigned int reg_crc = 0xffff;

i = 0; while (length--) { reg_crc ^= RTUData[i];

i ++; for (j = 0; j < 8; j++) { if (reg_crc & 0x01) reg_crc = (reg_crc >> 1) ^ 0xA001;

else reg_crc = reg_crc >> 1;

} } return(reg_crc);

Software for Setting up Communication on PC: Download the free software on Delta’s website.

 How to Mount & DIN Rail Size

Connect maximum 7 DTC2000 or DTC2001 controllers to DTE by using DIN rail.

The content of this instruction sheet may be revised without prior notice. Please consult our distributor or

download the most updated version at http://www.delta.com.tw/industrialautomation.

‘1’

‘8’