Reserve horizontal expansion capabilities and can customize the expansion of various functional modules, initially including:
RS485: with isolation
DI: Passive input type, the module provides 24V isolated power supply
DO: relay output type, NC, COM, NO nodes
AI: 0-5V/4-20mA, 2-wire/3-wire input, the board provides 24V isolated power supply
AO: 0-5V/4-20mA, 2-wire/3-wire output, external 24V isolated power supply
AI + AO: 0-5V/4-20mA, 2-wire/3-wire input/output. Power supply as above
Other customized modules