H-86

TZN/TZ Series

Communication output

Calculation range of Block Check Character

Start

Code

Header

Code

END

Code

BCC

Code

Address

Code

Text

STX

101

100

R/W X/D

ETX

FSC

Supply system power

※A → Over min. 4sec, B → Within max. 300ms, C → Over min. 20ms

A

B

C

TZ/TZN

S

T

X

A

D

R

C

M

D

T

X

T

E

T

X

B

C

C

S

T

X

A

D

R

C

M

D

T

X

T

E

T

X

B

C

C

A

C

K

S

T

X

A

D

R

C

M

D

T

X

T

E

T

X

B

C

C

Master

Interface

Standard

EIA RS485

Number of connections

Max. 31units. It is available to

set address 01 to 99.

Communication method

2 wire half duplex

Synchronous method

Asynchronous type

Communication distance

Within 1.2km

Communication speed

2400, 4800, 9600(available to set)

Start bit

1bit(Fixed)

Stop bit

1bit(Fixed)

Parity bit

None

Data bit

8bit(Fixed)

Protocol

BCC

Upper

Terminating

resistance

N

1

(N-1)

TZ/TZN

TZ/TZN

TZ/TZN

(A+)

(A+)

(A+)

(B-)

(B-)

(B-)

RX(-)

TX(+)

System ordering

※Use a proper twist pair for communication.

Communication control ordering

1. The communication control ordering of TZ/TZN

Series is

exclusive protocol.

2. After 4sec. being supplied the power into master system,

then able to start communicating.

3. Initial communication will be started by master system.

When Command signal comes out from master system

then TZ/TZN

Series will respond.

Communication Command and Block

Format of Command and Response

① Start code

It indicates the first of Block STX → [02H],

in case of response, ACK will be added.

② Address code

This code is master system can discern TZ/TZN

Series

and able to set within range of 01 to 99.(BCD ASCII)

③ Header code:

It indicates command as 2 alphabets as below.

RX(Read request) → R[52H], X[58H]

RD(Read response) → R[52H], D[44H]

WX(Write request) → W[57H], R[58H]

WD(Write response) → W[57H], D[44H]

④ Text: It indicates the detail contents of Command/

Response. (see command)

⑤ END code: It indicates the end of Block. ETX → [03H]

⑥ BCC: It indicates XOR operating value from the first to

ETX of the protocol as abbreviation of TZ/TZN.

Communication Command

● Read [RX] of measurement/setting value :

Address 01, Command RX

1.Command (Master)

① Command

STX

0

1

R

X

P

0

ETX

FSC

Start

Address

Command

head

P:Process value

S:Setting value

End

BCC

② Application: Address(01), Header code(RX),

Process value(P)

STX

0

1

R

X

P

0

ETX

FSC

02

30

31

52

58

50

30

03

BCC

●

Write [WX] of setting value: Address 01, Command WX

1.Command(Master)

① Command

STX 0

1

W

X

S

0 Symbol 103 102 101 100 ETX FSC

Start Address Command

head

S:Setting

value Space/- 10

3 102 101 100 End BCC

② Application: In case of writing Address(01), Heading

Coad(WX), Setting value(S) +123.

STX 0

1

W

X

S

0 Symbol 103 102 101 100 ETX FSC

02 30 31 57 58 53 30

20

30 31 32 33 03 BCC

Response

● Read of process/Setting value

1. In case of receiving normal process value :

The data is transmitted adding ACK[60H].

(In case process value is +123.4)

A

C

K

S

T

X

0 1 R D P 0 Symbol 103 102 101 100 Decimal

point

E

T

X

F

S

C

N

U

L

L

A

C

K

S

T

X

0 1 R D P 0 Space

1

2

3

4

1

E

T

X

B

C

C

N

U

L

L

06 02 30 31 52 44 50 30

20

31 32 33 34

31

03

B

C

C

00

2. In case process value is -100

A

C

K

S

T

X

0

1

R D

P

0 - 0

1

0

0

0

E

T

X

B

C

C

N

U

L

L

06 02 30 31 52 44 50 30 2D 30 31 30 30 30 03

B

C

C

00

※It is responded with 1 byte sized NULL(00H) at the end

of response frame (next BCC 16).