TTM-110 Protocol Method

 

TTM-110 is the driver to communicate with PID controller of Toho Electronics Inc. in Japan.

TTM-110 controller enable to connect maximum thirty-one STATION as MULTI-DROP.

 

1. Read settings

<Figure 1> is read setting example of TTM-110 communication driver.

<Figure 1> Read setting example of TTM-110 communication driver

Device part of <Figure 1> input connected Com Port, Com Baud(1200~19200 BPS), PARITY BIT(0~2), DATA BIT(7,8), STOP BIT(1, 2), etc and write TxRTS(or TxON), RxECHO(or RxON), etc for not recieving BACK sign when you use 485 communication.

Designate STATION, Com Baud, etc of TTM-110 by using attached setting switch to controller.

 

(Notice)

If you set communication setting as LOCAL MODE, it can't communicate with computer. So, if you want communication, you have to set communication setting as COMMUNICATION MODE.

Also, you have to set using BCC(CRC) for communication. (In case of incoming till ETX only from Recv code of viewing Communication code)

 

TTM-110 driver read schedule

Read schedule setting parameters are as follows :

1) STATION - STATION number.

2) FUNCTION - Setting value(PV1, -SV etc).

3) Read start address - Don't care.

4) Save Start Address for Communication Server - Saving start address of Communication Server.

5) Read Size - Fixed to 1 WORD.

 

READ schedule example)

READ,   0,   PV1,  0,    0,  1,

READ,   0,   -SV,  0,    1,  1,

READ,   1,   PV1,  0,    2,  1,

READ,   1,   -SV,  0,    3,  1,

 

2. Writing settings

 

Digital Write

Digital write setting parameters are as follows:

1) PORT : PORT no.

2) STATION : Station number of TTM-110.

3) EXTRA1 : Setting value. (Setting value possible to digital output)

 

Analog Write

Analog write setting parameters are as follows :

1) PORT : PORT no.

2) STATION : Station number of TTM-110.

3) EXTRA1 : Setting value. (Setting value possible to analog output such as -SV, TMS, -CT, etc)

 

Write example)

PORT : 0  STATION  1  EXTRA1:-SV

The setting parameter shown above is example of controlling SV value of TTM-110 controller connected with port no.0 and station no.1.

 

Reference) Also, TTM-006, etc series can use same communication drive with TTM-110.

 

Communication setting method of TTM006 device)

Address and Com Baud settings, etc of TTM006 device are set at front of control panel(refer to <Figure 2>) as follows.

1)      If you press MODE switch over 2 second, it is SET.

2)      Set as no.6 by pressing up or down key.

3)      If you re-press MODE key at SET no.6, communication parameter setting screen is shown.

4)      You can set whether to check BCC(n : None, b : Being), Data bit, Parity bit and Stop bit by pressing up and down button at this screen.

5)      If you re-press MODE key, you can set Com Baud as 1200 ~ 19200 bps(1.2 ~ 19.2) at communication speed setting screen( _BPS ).

6)      You can set address between 1 and 99 at address setting screen( _Adr ) of device by re-pressing MODE key.

7)      If you re-press MODE key, you can set communication response delay time of range from 0 to 250ms(Default 0).

8)      You can select ro(Read Only) or rw(Read/Write) at communication mode setting screen( _Nod ) by pressing MODE key.

9)      If setting is over, it returns to control mode by pressing MODE key over 2 second.

 

Notice) You have to set whether to check BCC as b(Being) for communication because TTM110 communication driver uses BCC check.

<Figure 2> Appearance of TTM-006 device

<Figure 3> Appearance of connecting power and RS-485 communication cable to TTM-006 device