IO-Link Application

iqMAXREFDES42 communicates with an IO-Link Master on COM3 transmission rate (230,4kbit/s).

Process Data In

Bits    23  22  21  20  19  18  17  16  15  14  13  12  11  10   9   8       7   6   5   4   3   2   1   0
       +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+   +---+---+---+---+---+---+---+---+
  MSB  | x |       ambient temperature process value (15bits)          |   | x | x | x | x | x | x | x | F |  LSB
       +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+   +---+---+---+---+---+---+---+---+
                                                                                                         |
                                             temperature process value switch-point flag (FALSE/TRUE) ---+

Process Data Out

Be absent.

Commands

Can be run by IO-Link Index 0x0002:

Value	Description
128 (0x80)	Device Reset
160 (0xA0)	Tech-in ambient temperature switch-point level (see IO-Link index 0x0100 below)

Parameters

IO-Link index	Mode	Description	Default value
16 (0x0010)	read-only	Vendor Name	Maxim Integrated
17 (0x0011)	read-only	Vendor Text	The world leader in analog integration
18 (0x0012)	read-only	Product Name	Mojave (MAXREFDES42#)
19 (0x0013)	read-only	Product ID	MAXREFDES42
20 (0x0014)	read-only	Product Text	IO-Link RTD Temp Sensor
23 (0x0017)	read-only	Firmware Revision	v 1.3.0
256 (0x0100)	read/write	Ambient temperature switch-point level	9148 (0x23BC)
257 (0x0101)	read/write	Ambient temperature switch-point hysteresis	32 (0x20)
258 (0x0102)	read/write	Display’s temperature scale (0 - °F, 1 - °C)	1 (0x01)
259 (0x0103)	read/write	N-wire type connection (2, 3, 4)	2
260 (0x0104)	read/write	MAX31865ATP+ Configuration register	0xCO (2-wire or 4-wire auto conversion mode)
261 (0x0105)	read-only	MAX31865ATP+ RTD (2 bytes)	0
262 (0x0106)	read/write	MAX31865ATP+ High Fault Threshold (2 bytes)	0xFFFF
263 (0x0107)	read/write	MAX31865ATP+ Low Fault Threshold (2 bytes)	0
264 (0x0108)	read-only	MAX31865ATP+ Fault Status register	0x00
265 (0x0109)	read/write	Reference resistance (3 bytes)	400_000mΩ (PT100)
266 (0x010A)	read/write	Nominal resistance at 0°C (3 bytes)	100_000mΩ (PT100)
267 (0x010B)	read-only	Ambient temperature (in °F)	-412.3768°F
268 (0x010C)	read-only	Ambient temperature (in °C)	-246.876°C
269 (0x010D)	read-only	Ambient temperature SP level (in °F)	86.0°F
270 (0x010E)	read-only	Ambient temperature SP level (in °C)	30.0°C
271 (0x010F)	read-only	Ambient temperature SP hysteresis (in °F)	1.8°F
272 (0x0110)	read-only	Ambient temperature SP hysteresis (in °C)	1.0°C

Events

Event code	Description
0x4210	Device temperature over-run
0x5000	Device hardware fault
0x5111	Primary supply voltage under-run
0x6000	Device software fault
0x7710	Short circuit