Hima F3237 8 Fold Digital Input Module 984323702
Description:
F3237 is manufactured by Hima, it is designed as a 8 channels Digital Input Module. for the connection of safety related proximity switches, proximity switches acc. to DIN 19234 (NAMUR) and resistor-wired sensors monitoring of the lines for short-circuit and line break Safety related, requirement class AK 1 ... 6.

The cable plug is Z 7108. 

F3237 can test automatically when operate. The main test routines are:
- Switch on and switch off cability
- Crosstalk of the input circuits by walking 0 test
- Function of the input filters
- Correct function of the module
- Short circuit and wire break of the sensor line
Function of LEDs are not tested. Appertaining softw. building block: HB-RTE-. (for current version refer to the description of the operating system).

The block diagrams already show the direction of signal flow from the top to the bottom. With input modules the input signal (from sensor, proximity switch etc.) is lead via the cable connector and input module to the I/O bus or in the mechanical principle from the front to the rear side of the I/O subrack. With output modules the result of the logic operation in the user’s program is switched from the I/O bus to the output amplifier via the cable connector to the actuators (relay, magnetic valve etc.). The mechanical principle ist from the rear to the front side of the I/O subrack. By knowing the direction of signal flow you also are able to see on which side the 5 V and 24 V operating voltages are fed in.