Hardware
Figure 11. DIN Clip with Spring on a Zlinx 485 Module
I/O Options and Characteristics
I/O Options
The Zlinx 485 family of products features a variety of input and output options. Base and expansion module options include:
•2 analog inputs, 2 analog outputs, 2 digital inputs and 2 digital outputs (sourcing or sinking driver)
•4 digital inputs and 4 digital outputs (sourcing or sinking driver)
•8 digital inputs
•8 digital outputs (sourcing or sinking driver)
o8 relay output model available
•4 analog inputs
oRTD Temperature input module available
•4 analog outputs
•2 analog inputs and 2 analog outputs
(Modules continue to be developed with additional features and options.)
Refer to Appendix E for a list of available models and options.
I/O Types and Characteristics
Digital Inputs
DI’s can detect the presence of contact closures, transistor switches or on/off DC voltage signals (low or high logic levels). Voltages below 0.8 VDC are interpreted as a low state. Voltages between 4.0 VDC and 48 VDC are interpreted as a high state.
DI’s are also programmable to be NPN or PNP
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