Electronics Weekly
“IO-Link has become increasingly popular in recent years due to its ability to provide real-time data and diagnostics, and its compatibility with existing systems,” said Renesas, adding that it also offers remote configuration and monitoring.
CCE4511 is the four-channel IO-Link master, with 500mA drive for each channel. Over-voltage detection and over-current protection are included.
“An integrated IO-Link frame handler automates most of the lower layer communication, reducing microcontroller loads significantly,” said the company. “It also supports detection of ready pulses from IO-Link devices, which is required to fulfil the newly-defined IO-Link Safety System Extension.”
Operation is in ambients up to 125°C.
ZSSC3286 is the dual-channel resistive sensor signal conditioner, described as ‘IO-Link-ready’ by Renesas.
The IC It has “an integrated IO-Link stack running the IO-Link Smart Sensor profile for digital measuring and switching sensors”, it said.
An on-board 32bit Arm Cortex-M3 is there to compensate for sensor offset, sensitivity, temperature drift and non-linearity, using a correction algorithm with coefficients stored in a non-volatile reprogrammable memory.
Also programmable is the analogue front-end, which has two parallel ADCs with up to 24bit resolution. Bridge and half-bridge sensors can be connected, as well as voltage sources.
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