DELTA DTC SERIES DTC SERİSİ DELTA PLC DTC CONTROLLER DTC2000R Delta DTC2000R DTC2000R temperature controller DTC2000R extension unit Delta DTC series DTC2000R DTC2000R DIN rail module DTC2000R relay output DTC2000R RS-485 communication Delta DTC2000R modular type DTC2000R PID controller DTC2000R 24VDC supply Delta DTC2000R industrial controller DTC2000R process controller Delta DTC2000R temperature & process unit Delta DTC2000R automation module