The 9470/33 digital input/output module for Zone 2 has 16 channels which can be used in pairs for Ex i operation as inputs for contacts and NAMUR proximity switches (EN 60947-5-6) or as outputs for indicator lamps and low-power solenoid valves. Eight inputs can be used for frequencies of up to 20 kHz, and four can be used for detecting the direction of rotation. All inputs/outputs are short-circuit proof and galvanically separated from the system.
- 16 channels can be used in pairs as inputs or outputs
- Ex ia IIC intrinsically safe inputs/outputs with line fault monitoring
- Module in Zone 2 can be replaced without having to disconnect the power supply (i.e. hot-swapped)
