Analog Output Channels 4-CH [remove] Bus types RS485 [remove] Isolation Type Digital Isolation [remove] Analog Output Synchronism 8-CH [remove] Analog Input Synchronism 16-CH [remove] Analog Input Channels 9-16 CH [remove] Digital I/O Channels 8-CH [remove] Time counter 9-CH [remove] Measurement Types Frequency [remove]