... (of these, 2 channel are normal closed signal). Through signal jack, it can supply automatic control signal to PLC. (Like position ... by the cable (9 pin 232 interface). By output interface jack, it can control solenoid valve on/off.5 Relay control ... supply automatic control signal for automatic control. By output interface jack, it can control solenoid valve on/off.3) Hydraumatic components ...