Control Network Newsletter
Using IO Modules to Expand the Number of Points in the Field
IO Modules provide a convenient way for expanding the number of I/O points in the field. For those installations that require a fieldbus solution such as Modbus RTU/ASCII, BACnet MS/TP, Modbus TCP, or BACnet/IP, Contemporary Controls provides the solution. Cost-effective Configurable I/O or Cube I/O modules are available with analog and digital inputs and outputs in varying combinations.
"Some installations require that field input/output devices must be distributed away from the central controller," said Joe Stasiek, Sales Manager. "Or sometimes an integrator simply needs more points in Class 2 field installations. In either case, IO modules are the answer."
Configurable I/O modules provide universal inputs that support temperature, analog, resistance and binary in a single module. For applications not requiring universal inputs there are modules with discrete inputs that support contact closure and retentive pulse counting at 100Hz. Additional modules supply a mix of universal inputs and/or discrete inputs with relay outputs and analog outputs. A single module supports BACnet MS/TP or Modbus RTU/ASCII with a simple dip switch selection.
Cube I/O modules are available with varying configurations of analog and digital inputs and outputs. Digital input modules can be configured to support either "wet or dry" contacts up to 10 points. There are also analog input modules to measure voltage and resistance, analog output modules that output voltage, relay output modules and mixed digital input/output modules. All modules operate from a 24 VAC/VDC supply.
Visit the IO Modules product page to learn more.