12. Communication Design Examples 12.11 LINK between PLC, Delta DTA and DTB Series Temperature Controllers Master PLC Master ID = K10 PLC RS-485 Slave1 Slave2 Slave address = K1 Slave address = K2 DTA Temperature Controller DTB Temperature controller Control Purpose: z Setting the target temperature and reading the present/target temperature of DTA TC. z Setting the target temperature, upper/lower limit of temperature range and reading the present/target temperature of DTB TC. Parameter Settings for DTA Series Temperature Controller:
Ъ If TC can not run normally due to improper parameters, users can set the TC to factory defaults first and then set the parameters according to the above table. DTA TC does not support writing multiple words, so the number of the written data should set to “1 “. DVP-PLC Application Examples 12-38 Parameter Function Set value C WE: Write-in function disable/enable ON C-SL: ASCII, RTU communication format selection ASCII C NO: Communication address setting 1 BPS: Communication baud rate setting 9600 LENGTH: Data length setting 7 PARITY: Parity bit setting E STOP BIT: Stop bit setting 1 UNIT: Temperature display unit °C or ℉ °C