Simple solution for distributed I/O requirements. The MOD-MUX
system consists of stand-alone Digital and Analog Input and Output
modules which are connected together on an ETHERNET 10Base-T
network using the MODBUS TCP protocol.

The MOD-MUX TCP modules also have built in web servers. This
standard web browser.

All MOD-MUX modules plug into industry standard DIN rail mount 11
pin relay bases. All modules have a minimum isolation of 1000VAC
rms between the field and logic.
Module selection
Down load PDF here