Input/output signal
7         Analog Input (AI) IN1、IN2、IN3、IN4、IN6、IN7 is input terminal of mA、V, all standard signal can be set
   IN5 is input terminal of TC、mA、V, all standard signal can be set
1         Analog Output (AO)
OUT 1 is transmission output terminal of mA、V, all standard signal can be set
3         Switch input(DI)
DO1、DO2、DO3 is alarm output of PV
Forward and backward control signal output 220VAC, controlled by 220VAC two-way SCR, can directly drive servo motor of electric actuator 
Can be with PID self-adjusting function