Delta Electronics DTC2000 Series LED Display, Password Function, RS-485 Communication, y RTU Mode

Mode	Alarm Type	Alarm Output Operation
2	Alarm output will be enabled when the temperature reaches the upper limit.	ON
		OFF
	y Alarm will be enabled when the PV exceeds SV + AL-H.			SV	AL-H
3	Alarm output will be enabled when the temperature reaches the lower limit.	ON
		OFF
	y Alarm will be enabled when the PV falls below SV – AL-L.		AL-L	SV
4	y Alarm will be enabled when the PV is between SV + AL-L and SV – AL-L.	ON
		OFF
				SV	AL-H
			AL-L
	Alarm output will be enabled when the temperature reaches the absolute	ON
5	value of the upper and lower limits.	OFF
	y Alarm will be enabled when the PV exceeds AL-H or falls below AL-L.		AL-L		AL-H
	Alarm output will be enabled when the temperature reaches the absolute	ON
6	value of the upper limit.	OFF
	y Alarm will be enabled when the PV exceeds AL-H.				AL-H
	Alarm output will be enabled when the temperature reaches the absolute	ON
7	value of the lower limit.	OFF
	y Alarm will be enabled when the PV falls below AL-L.		AL-L
8	Standby upper/lower limit alarm	ON
	y Alarm will be enabled when the PV reaches SV and exceeds SV + AL-H or	OFF
	falls below SV – AL-L.		AL-L	SV	AL-H
9	Upper limit standby alarm	ON
		OFF
	y Alarm will be enabled when the PV reaches SV and exceeds SV + AL-H.			SV	AL-H
10	Lower limit standby alarm	ON
		OFF
	y Alarm will be enabled when the PV reaches SV and falls below SV – AL-L			SV
			AL-L
11	Upper limit hysteresis alarm	ON
	y Alarm will be enabled when the PV exceeds SV + AL-H and disabled when	OFF
	the PV falls below SV + AL-L.			AL-L	AL-H
12	Lower limit hysteresis alarm	ON
	y Alarm will be enabled when the PV falls below SV – AL-H and disabled	OFF
	when the PV exceeds SV – AL-L.		AL-H	AL-L

Note: AL-H and AL-L include AL1H, AL2H, AL1L and AL2L. When Output 1 is set to Alarm Output, use AL1H (1024H) and AL1L (1025H). When Output 2 is set to Alarm Output, use AL2H (1026H) and AL2L (1027H).

LED Display

1.When power is normal, POWER LED will be on.

2.After DTC1000/2000 is switched on, all LED will be on. The communication protocol will be displayed in 1 second, followed by the communication address in the next second.

3.RUN LED is on when the control is executing.

4.ERROR LED is on when errors occur in input, memory or communication.

5.When an output is executing, its corresponding output LED will be on.

6.AT LED flashes when PID parameters are being auto-tuned.

7.RX LED flashes when DTC1000/2000 receives communication signals. TX LED flashes when DTC1000/2000 sends out communication signals.

Communication protocol displayed on LED after the power of DTC1000/2000 is switched on:

AT		TX		RX	O1	O2	Err	Run
000: 2,400bps	001: 4,800bps		010: 9,600bps		Parity 00: None	01: Even	0: ASCII	0:2 Stop bits
011: 19,200bps 100: 38,400bps					10: Odd		1: RTU	1:1 Stop bit

Communication address display: AT (bit 6) and Run (bit 0) are combined to binary code.

Password Function

The default setting of the password is disabled. To enable the password function, enter the 4-character password in the specific communication address. The password is protected by 3 levels.

1.Level 1: Only LED status, SV and PV can be read. No settings can be modified.

2.Level 2: Only LED status, SV and PV can be read. Only SV can be modified.

3.Level 3: All SV can be read. Only SV and auto-tuning can be modified.

4.Level 4: No password protection.

When a password is set (in 106EH ~ 1070H), the protection will enter Level 1. To enter other levels, enter the corresponding password (in 106BH ~ 106DH). After DTC1000/2000 is switched off, the protection will return to Level 1. To unlock the password protection, the user has to remove all the passwords (in 106EH ~ 1070H).

The password protection level can be read in 106EH ~ 1070H:

bit	b0	b1	b2	b3	b4	b5	b6
Status	Level 1	Level 2	Level 3	Level 1 locked	Level 2 locked	Level 3 locked	Unlocked

bit = 0 refers to no password is set. bit = 1 refers to the password has been set (b0 ~ b2). b3 ~ b6 display the current level status.

Synchronous Communication Protocol & Auto ID Setup

This function allows the user to set the communication protocol of DTC2000 to the same protocol as set in the first DTC1000. The station IDs of DTC1000/2000 are arranged in decreasing order. Follow the steps below.

1.Set the auto communication ID of DTC1000 to “1” (communication address: 1022H).

2.Switch off DTC1000 before connecting it to DTC2000. Switch it on 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 your DTC.

RS-485 Communication

1.Supports transmission speed: 2,400, 4,800, 9,600, 19,200, 38,400bps;

2.Does not support 7, N, 1 / 8, E, 2 / 8, O, 2 communication format;

3.Communication protocol: Modbus ASCII/RTU;

4.Function code: 03H (read Max. 8 words in register), 06H (write 1 word into register), 01H (read Max. 16 bits of data), 05H (write 1 bit into register).

Address	Setting	Content	Explanation
			Unit: 0.1 degree. Analog input: 1EU.
			The read values below indicate the occurrence of errors:
			8002H: Temperature not acquired yet
1000H		Present temperature value (PV)	8003H: Temperature sensor not connected
			8004H: Incorrect sensor type
			8006H: Unable to acquire temperature, ADC input error
			8007H: Unable to read/write the memory
1001H	0	Set point (SV)	Unit: 0.1 degree. Analog input: 1EU.
1002H	6,000	Upper-limit of temperature range	The content shall not be bigger than the range. Unit: 0.1°
1003H	-200	Lower-limit of temperature range	The content shall not be smaller than the range. Unit: 0.1°
1004H	12	Input sensor type	See the table in “Input” section.
1005H	0	Control method	0: PID, 1: ON/OFF, 2: Manual, 3: programmable PID
1007H	4	Control cycle of Output 1	0 ~ 99, 0: 0.5sec
1008H	4	Control cycle of Output 2	0 ~ 99, 0: 0.5sec (Invalid when the 2 outputs are the same
			control.)
1009H	476	Proportional band value	1 ~ 9,999, Unit: 0.1°. Analog input: 1EU
100AH	260	Ti value	0 ~ 9,999
100BH	41	Td value	0 ~ 9,999
100CH	0	Default integration value	0 ~ 1,000, Unit: 0.1%
100DH	0	Offset compensation value for proportional	0 ~ 1,000, Unit: 0.1%
		control (when Ti=0))
100EH	100	COEF setting when in dual control output	1 ~ 9,999, Unit: 0.01
100FH	0	Deadband setting when in dual control	-999 ~ 9,999, Unit: 0.1° or 1EU
		output
1010H	0	Hysteresis of Output 1	0 ~ 9,999, Unit: 0.1° or 1EU
1011H	0	Hysteresis of Output 2	0 ~ 9,999, Unit: 0.1° or 1EU
1012H	0	Read/write output percentage of Output 1	Unit: 0.1%. “Write” is only applicable in manual mode.
1013H	0	Read/write output percentage of Output 2	Unit: 0.1%. “Write” is only applicable in manual mode.
1014H	0	Upper-limit regulation for analog linear output	1 scale = 2.8μA = 1.3mV
1015H	0	Lower-limit regulation for analog linear output	1 scale = 2.8μA = 1.3mV
1016H	0	Temperature offset regulation value	-999 ~ +999, Unit: 0.1° or 1EU
1020H	0	Output mode for Alarm 1	See “Alarm Output” section.
1021H	0	Output mode for Alarm 2	See “Alarm Output” section.
1022H	0	Communication flag auto-set	0: Communication banned, 1: Communication auto-set
1024H	40	Upper limit for Alarm 1	See “Alarm Output” section.
1025H	40	Lower limit for Alarm 1	See “Alarm Output” section.
1026H	40	Upper limit for Alarm 2	See “Alarm Output” section.
1027H	40	Lower limit for Alarm 2	See “Alarm Output” section.
102AH		Read/write status	b1: ALM2, b2: °C, b3: °F, b4: ALM1, b5: O2, b6:O1, b7: AT
102CH	0	Positive/negative proportional output	0: positive, 1: negative
102EH		LED status	b0: RUN, b1: ERR, b2: O2, b3: O1, b4: RX, b5:TX b6: AT
102FH		Software version	V1.00 is indicated as 0x100
1030H	0	No. of start pattern	0 ~ 7
1032H		Remaining time of the executed step	Unit: second
1033H		Remaining time of the executed step	Unit: minute
1034H		No. of currently executed step	0 ~ 7
1035H		No. of currently executed pattern	0 ~ 7
1037H	1,000	Upper limit of proportional output	0 ~ 100% upper limit of analog output, Unit: 0.1%
1038H	0	Lower limit of proportional output	0 ~ 100% lower limit of analog output, Unit: 0.1%
1040H~	7	Number of steps in a pattern	0 ~ 7 = N refers to the pattern will be executed from Step 0
1043H			to Step N.
1050H~	0	Additional number of cycles for a pattern	0 ~ 199 refers to the pattern will be executed for 1 ~ 200
1053H			times.
1060H~	0	No. of the link pattern for the current	0 ~ 8, 8 refers to end of the program. 0 ~ 7 refers to the
1063H		pattern	next pattern No. following the current pattern.
1068H	1	Run/Stop setting	0: Stop, 1: Run, 2: Program end, 3: Program hold
1069H	0	Control selection of Output 1	0: Heating, 1: Cooling, 2: Alarm, 3: Proportional output
106AH	0	Control selection of Output 2	0: Heating, 1: Cooling, 2: Alarm
106BH	0	Unlock Level 1 password protection.	Shall be the same as Level 1 password (106E)
		Read/write allowed
106CH	0	Unlock Level 2 password protection. Use	Shall be the same as Level 2 password (106F)
		Level 3.
106DH	0	Unlock Level 3 password protection. Use	Shall be the same as Level 3 password (1070)
		Level 2
106EH	0	Unlock Level 1 password protection/Set up	Unlock password before setting it up.
		password
106FH	0	Unlock Level 2 password protection/Set up	Unlock password before setting it up.
		password
1070H	0	Unlock Level 3 password protection/Set up	Unlock password before setting it up.
		password
1071H	1	Read/write communication address	1 ~ 247
1072H	0	Read/write communication format	1: RTU, 0: ASCII
1073H	2	Read/write communication speed	0 ~ 4: 2,400 ~ 38,400
1074H	1	Read/write communication data length	0: 8 bits, 1: 7 bits
1075H	1	Read/write parity bit	0: None, 1: Even, 2: Odd
1076H	1	Read/write stop bit	0: 2 stop bits, 1: 1 stop bit
2000H~	0	SV temperature for Pattern 0 ~ 7.	Unit: 0.1°
203FH		SV for Pattern 0 is set in 2000H ~ 2007H
2080H~	0	Execution time for Pattern 0~7.	0 ~ 900 (1 scale = 1 minute)
20BFH		Time for Pattern 0 is set in 2080H ~ 2087H

5.	Address and content of the bit register (read bits are stored starting from LSB, and written data is FF00H, set the
	bit as 1. 0000H sets the bits data to “0”).
	0811H	Temperature unit display	0:°F, 1: °C (Default)
	0813H	Read/write auto-tuning status	0: End (Default), 1: Start
	0814H	Run/Stop setting	0: Stop, 1: Run (Default)
	0815H	Program hold flag	1: Program hold
	0816H	Program stop flag	1: Program stop
6.	Communication format: Command 01: read bit, 05: write bit, 03: read word, 06: write word.

y 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’	Length of response data	‘0’	‘0’		‘1’	‘0’		‘1’	‘0’
Read staring address of	‘0’	‘8’	(byte)	‘4’	‘2’	Write data address	‘0’	‘8’	Write data address	‘0’	‘8’
data/bit	‘0’	‘1’		‘0’	‘1’		‘0’	‘1’		‘0’	‘1’
	‘0’	‘0’	Data content in	‘1’	‘7’		‘1’	‘0’		‘1’	‘0’
	‘0’	‘0’	1000H/081xH	‘F’	‘0’		‘0’	‘F’		‘0’	‘F’
Read length of data/bit	‘0’	‘0’		‘4’	‘1’	To write data content	‘3’	‘F’	Write data content	‘3’	‘F’
(word/bit)	‘0’	‘0’		‘0’			‘E’	‘0’		‘E’	‘0’
	‘2’	‘9’	Data content in 1001H	‘0’			‘8’	‘0’		‘8’	‘0’
LRC1 check	‘E’	‘D’		‘0’		LRC1	‘F’	‘E’	LRC1	‘F’	‘E’
LRC0 check	‘A’	‘D’		‘0’		LRC0	‘D’	‘3’	LRC0	‘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’	‘4’	End word 0	LF	LF	End word 0	LF	LF
			End word 1	CR	CR
			End word 0	LF	LF

yLRC Check

LRC check sums up from “machine address” to “data content”, e.g. 01H + 03H + 10H+ 00H + 00H + 02H = 16H. Obtain 2’s complement EA.

y 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
Read start address	10H	08H	Length of response	04H	02H	Write data address	10H	08H	Write data address	10H	08H
of data	00H	10H	data (byte)				01H	10H		01H	10H
Read length of data	00H	00H	Data content 1	01H	17H	Write data content	03H	FFH	Write data content	03H	FFH
(bit/word)	02H	09H		F4H	01H		20H	00H		20H	00H
CRC low byte	C0H	BBH	Data content 2	03H		CRC low byte	DDH	8FH	CRC low byte	DDH	8FH
CRC high byte	CBH	A9H		20H		CRC high byte	E2H	9FH	CRC high byte	E2H	9FH
			CRC low byte	BBH	77H
			CRC high byte	15H	88H

yCRC Program Example

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);

Installation

How to connect maximum 8 DTC1000/2000 controllers by using DIN rail.

How to Set Up Current Input

For general inputFor current input (4 ~ 20mA, 0 ~ 20mA)

JU MPER

J UMPER

JP1	PIN HEADER	JP1
		PIN HEADER
DEFAULT SETTING

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