8 Universal I/O Module, 4-20mA, 8 Inputs/outputs signaled with green LED, without local operation (same functionality as TXM1.8U, but with current input/output). 8 universal I/O points, individually configurable as: DI: Message signal, message impulse (with storage function) or counter impulse (25 Hz)AI: Temperature sensor, DC 0...10 V, or 4...20 mAAO: DC 0...10 V, 4...20 mA (for 4 I/O points) Easy-to-understand operation: Local priority operation as per VDI3814Simple display concept with LCD and colored LEDs