FlexLogix System

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1794 FLEX and 1797 FLEX Ex I/O

1794 FLEX Counter Modules

Cat. No.	Number of Inputs	Number of Outputs	Input Frequency, Max.	Terminal Base Unit	FLEXBus Current (mA)	External DC Supply Current, Nom.	Power Dissipation, Max.
1794-ID2	2 , 2 groups of A, B, Z, G inputs	—	100	1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBNFT ‡	5 mA@ 5V dc	150 mA @ 12V DC 75 mA @ 24V DC	5 W @ 26.4V DC
1794-IJ2	2 counters, each with 2 digital inputs	2 counters, each with 1 digital output	1…32 kHz w/sine wave; 1…32 kHz w/square wave input	1794-TB3G, 1794-TB3GST	30 mA	220 mA @ 19.2V DC; 180 mA @ 24V DC; 140 mA @ 31.2V DC	4.6 W @ 31.2V DC
1794-IJ2K	2 counters, each with 2 digital inputs, conformally coated	2 counters, each with 1 digital output	—	—	— mA	—	—
1794-IP4	4 pulse counters, each with 2 inputs	—	100	1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBNFT ‡	5 mA	150 mA @ 12V DC 75 mA @ 24V DC	5 W @ 26.4V DC
1794-VHSC¬	2 counters, each with digital inputs	2 channels, each with 1 digital output	1.0 MHz counter and encoder X1 (no filters) 500 kHz encoder X2 (no filters) 250 kHz encoder X4 (no filters)	1794-TB3G, 1794-TB3GST § T	75 mA§	100 mA @ 24V DC Does not represent power required to supply the inputs or outputs.	5 W @ 31.2V DC
¬ As of firmware revision 11, you can install the 1794-VHSC module (and any other module that uses extended data transfers) on the local or extended-local DIN rails of a FlexLogix system. Previous revisions of the controller firmware support these modules only as remote ControlNet I/O. T Recommended terminal base is in bold text. ‡ Auxiliary terminal strips are required when using the 1794-TBN or 1794-TBNF for this catalog number. § For use with 1794-ACN15, 1794-ANCR15, and 1794-AENT only. § FLEXBus Current = 75 mA with terminal base power off.