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300 Digital I/O Modules
SM323 16DI/16DO
SM323 16DI/16DO
UN 323-1BL00-0AA0        Number of digital contact:16can pxpand digital input/output channels of S7-300 series PLC easily;can be used to ET 200M I/O;
SM322 32DO
SM322 32DO
UN 322-1BL00-0AA0        32DO,24V DC; Transistor;Optical isolation with high immunity.
SM322 16DO Relay
SM322 16DO Relay
UN 322-1HH01-0AA0       16DO,24V DC;Relay;Optical isolation with high immunity
SM322 16DO
SM322 16DO
UN 322-1BH01-0AA0        expand digital output channels of S7-300 series PLC easily;Number of digital contact:16;Frontconnestor:20-pin.
SM322 8DO
SM322 8DO
UN 322-1BF01-0AA0 8DO,24V DC;Transistor;Optical isolation with high immunity
SM321 32DI
SM321 32DI
UN 321-1BL00-0AA0  32DI,20V DC;High immunity;stable
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