MICA-R4 Multi IO IP20
PictureFeatures

Product Specifications- Industrial Raspberry Pi 4(CM4)- New processor, up to 2x faster than CM3- Raspberry Pi OS compatible (Ubuntu requres 4GB or more RAM)
- DC12/24V power input- Wide operating temperature range and high noise resistance- M8, M5, ix connectors with high vibration resistance andconnection reliability- Robust aluminum die-cast housing- Supports wall mount and DIN rail mount- On-board eMMC (SD card is not used for boot)- microSD slot for data storage- M.2 slot inside SSD and WWAN expansion- Raspi40p connector for expansion board- Built-in battery backup RTC- Highly reliable hardware watchdog

ProcessorMemoryOSInterface<Connector pin layout>
PWR connector Pin Col. Signal

OPT connector

1Pin Col. i2c RS232
1 BR 3.3V/5V/none*
TXD
2 WH SCL
3 BL 0V(RS232:SG)RXD
4 BK SDA

Broadcom BCM2711, Quad core @ 1.5GHz
RAM4GB, eMMC32GB (Depend on model)
Raspberry Pi OS
1x PWR: Power input, 2-line
Front
2x LAN: FLAN 1ch, GLAN 1ch
1x OPT: i2c/RS-232/485 selectable
1x USB: USB2.0 Host Type-A
1x CN1: Di16ch[14ch] (PNP)/2.4mA at 24VDC
Do8ch(PNP)/Pushpull0.1A,High-side0.5A
COM 1ch RS-232/RS485(2w)
CAN 1 or 2ch/CAN 2.0B,CAN FD 1Mbps
1x CN2: Di4ch (NPN)/7.2 mA at 24VDC
Do4ch (PNP)/High-side0.5A,pushpull0.1A
Ai 4ch 16bit(0-5/0-10VDC)
Note)ch3 only 0-5/0-100VDC
Ao2ch 12bit(0-5/0-10VDC)
SPI 1ch/ Max.12Mbps
1x PRG: STM32 programming port
1x Maintenance :Maintenance port(reserved)[Option]1x WLAN IEEE 802.11 b/g/n/ac,Bluetooth5.0,BLE[Option]1x LTE(M.2 slot/EM7431)
Back
1x USB-C : USB Type-C(eMMC writing only)
1x SW: eMMC write switch
1x microSD : microSD slot
Inter
1x M.2 slot B-key*, 1x nanoSIM slot
nal
1x CSI, 1xGPIO 40p
P: Power status, A0,1: LAN status
LED, Button
Pi: User custom/WD error, Di/Do: CN1-Di/Do status,
USR: User custom, PRG: STM32 Debugger interface,
RST: Reset switch for STM32
BR1225[or CR1225] Backup RTC
RTC
MCP79410-I:CR1632 backup RTC, NVRAM
NVRAM
Built-in hardware watchdog
Watchdog
Power/Consumption DC10.7V...28.8V/13.5W(incl. USB 500mAx1)
Operating Temp.: -20...60°C, Storage:-25...85°C
Temperature
Operating Humi.:0...95%(non-condensing)
Humidity
IP20
IP grade
Aluminum powder coating
housing material
W132 x D87 x H35 mm (excluding protrusions)
Dimensions
Multi IO: Approx.610g
WeightIEC 60068-2-6 / IEC 60068-2-27
Vibration/shock
Radiated emissions
EN55016-2-3
EMIElectrostatic radiation immunity
EN 61000-4-2
EMS
Radio frequency electromagnetic fields EN 61000-4-3
Fast transient burst
EN 61000-4-4DIN rail mounting, wall mounting(Option)
Installation method*Not a full pin connection. USB2.0, PCIe, SIM are connected.

Details of each partE0 connector[GLAN]

Hole for fix barcket

10/100M
TX+
TXN.C.
N.C.
N.C.
RX+
RXN.C.
N.C.
N.C.

1234567
8910ix type-A
jack

3 57Sig Di
nal 0

Di Di Di
2 4 6

Pin 24 6

Digital Input(PNP)

Di
11Pin5Back cover

Screw forback cover27

Di Di14 Di Do
13 orDo 122 24 26

Do Do
35Do
729

RS232(Tx)/RS485(+)

Digital Output(PNP)

GND

28

RS232(Rx)/RS485(-)

31

RS232/ CAN
485 SG 0+30DiCOM32CAN0-CAN
DC24V
GND Digital Output(PNP)
1*:This signal changes depending on the can1/2 port selection.
The rating per digital output point is 0.1A in the default setting. Make sure that the total current value
does not exceed 1A. For protection, an automatic reset fuse is built into the device.
Connection side Harness side
- Housing 20-pin: PHDR-20VS
CN2- Contact: BPHD/SPHD-001T-P0.5<CN2 port>
AWG26...22/Outer diameter Φ1.0...1.5mm[JST/PHD 20pin connector]- Contact: BPHD/SPHD-002T-P0.5
Pin1
AWG28...24/Outer diameter Φ 0.9...1.5mm
Digital Input(PNP)

Sig
nalPinSig
nal

13Pin7STM
Di0STM
Di2

STM
Di,Do
GND

Ai02468

STM Digital Input
(NPN)

STM
Di1

STM
Di3

STM Digital Input
(NPN)

Ai,Ao
GND

1Sig 3.3V
nal Passive

9Ai2

Analog input

10Ai1

Ai3

111315

STM
Do0

STM
Do2

Ao0121416

STM Digital Output Analog Output
(PNP)

STM
Do1

STM
Do356Ao11719

CS1 MISOSPI1820SCK MOSIAnalog input STM Digital Output Analog Output
SPI(PNP)Note) GND of Di, Do, STM-Di, Do, Ai, Ao, SPi and SG are connected.
Pin1234SWCLK GND SWDIO NRST SWOinioinout
STLINKConnection side Harness side-Housing 6-pin: SHR-06V-Sor SHR-06V-S-B-Contact: SSH-003T-P0.2-H
AWG32...28/Outer diameter Φ0.4...0.8mm<GPIO>[Internal] RasPi GPIO40pin (same layout as Raspberry Pi 40pin BM40B-SRDS-G-TF)
36 GPIO1638 GPIO2040 GPIO21(A1 LEDE0[GLAN]USB type-C port

Do Do
46GPIO19 35
GPIO26 37Ground 39A0LED

21 23 25

Do Do028 10 12 14 16* 18 20

Di Di Di Di DiSig
1 3 5 7 9nal

BConnection side Harness side
- Housing 32-pin: PHDR-32VS- Contact: BPHD/SPHD-001T-P0.5
AWG26...22/Outer diameter Φ1.0...1.5mm- Contact: BPHD/SPHD-002T-P0.5
AWG28...24/ Outer diameter Φ 0.9...1.5mm

Di Di14 Di
Do
12 orCAN
1+A

BR TX+
WH RX+BL RXBK TX+

1234

M8 A-coded
4pin Female

28 ID_SC30 Ground
32 GPIO1234 Ground

PiUSB0LEDmicroSD slot

1ID_SD 27
GPIO5 29GPIO6 31
GPIO13 33

Maintenance port

320 Ground
22 GPIO2524 GPIO826 GPIO7OPT29 11 13 15* 17 19

Di Di
8 10RS485

E1 connector[FLAN]Pin Col. Signal

4[JST/PHD 32pin connector]

Pin 1M5*1 pin for power output is no output by default.

GPIO10 19
GPIO9 21
GPIO11 23
Ground 25

CSI slit

3 4pin Female

12 GPIO18
14 Ground
16 GPIO2318 GPIO24

E1[FLAN]24

GPIO17 11
GPIO27 13
GPIO22 153.3V 17

PWR

1G
BI_DA+
BI_DAGND
BI_DC+
BI_DCBI_DB+
BI_DBGND
BI_DD+
BI_DD-1

CN1<CN1 port>

3.3V
GPIO2
GPIO3

<Back> eMMC write switch

SignalPin

GPIO4Ground

ANT0

P LED
Do LED3
M8 A-coded
4pin Male[JST/SH 6pin connector]

USB0Di LED

BR 24VDC(V1)
WH 24VDC(V2)BL 0V(V1)
BK 0V(V2)1234<PRG port>

CN2
CN1

42 5V
4 5V
6 Ground
8 GPIO1410 GPIO15

USR RST
LED Button

213579<Front>

PRG
port

Interface:System Used
(extension board CN10):System Used
(extension board CN6)
:System Used(SD)The GPIOs of CM4 are 3.3V level.The total GPIO load is up to 50mA. For
detailed specifications, please check the CM4 datasheet.

All data given are in line with the actual state of art and therefore not binding.
HARTING reserves the right to modify designs without giving the relevant reasons.

MICA-R4 Multi IO IP20
Internal DIP switch setting

ANT0--Main
WL/BT
None

The board on the left side of MCIA-R4 is the IO board. Only the lower board is mounted onthe DIO model. Analog range and serial communication can be selected by switching the switch.

Lower boardGND112322

51C121C211IC152421212L1111C34CN1+65BAT1MPD

VBUS

3256Y1245SW5323214IC16111222131111417TP17561C80

148C6134R21Signal
CAM1_C_P
GND
CAM_GPIO
NC
I2C1_SCL[GPIO45]
I2C2_SDA[GPIO44]
3.3V
NC

C5191011C79

2182ONONR54
2121213151162141L211SW5C5112211C81211910C4882CN51342222156CN101122172891022242232218811R61 R62

2271C73

8R6321672IC1212122614415555CR4621SW3SW6R45

322C42555

211211C78

1212C67C68

21365411132114433 44 45 46 47 48 49 50 51 52 53 54 55 556 64140

3938

3721SW12252726

121283635

34333231302922122R44213320 21IC9191341R432211111432292827262532

13123 224 430321177 18161528726152C36

1R122514R50

131215161718192024232257

21IC10124211211109814137121C 53

151416111SW2C

11C65C66

R2C27F116C77

102ON

189R55

R47

C56
C57

12C58

R13R14R15ONR42R49
R48

C 59

94228

92910C54C55

R12R11R56

C5215226631111344

1102992266

35431272925212319301517111395317311 2

3132322826222420162118121410842216322430

292826

SW1 SW2 SW3Upper board

Device ListC

11121227226111921

33

20IC82223R41225
1R30

2122211R31R33

2

11C32

212C30

1R35
R34C29C31CN3

12988

1

15

14131211101172

118

211616231

9DI_RDYONONR36

3322271CR37

112524R32

8R40

SW4IC11C60 C64R39R6714152111C632116 621C613C62R3817Pin
910111213141516-30

SignalGND
CAM1_D0_N
CAM1_D0_P
GND
CAM1_D1_N
CAM1_D1_P
GND
CAM1_C_N

2128778No.1

Pin12345678SW

4BU-1632SM-JJ-G

Switch setting list
13

FPC connector

1<CSI>[Internal]

ANT1---------

C76

Type
ANT2--Wired LAN--Wired LAN+LTE--Wired LAN+Wireless LAN
Wired LAN+Wireless LAN+LTE ---C74<ANT SMA port> [Option]

2Sts.
Comments
LEDP(GR) Off No power supply
On Power OK
A0(OR) Blink E0 active
A1(OR) Blink E1 active
Pi(RD) Off WD Normal
On WD Error
Pi(GR) Off User OFF
On User ON
Di0,1 Off Di OFF
ON Di ON
Do0,1 Off Do OFF
On Do ON
Off User On/OffUSR
On
On+3R3V<LED>

Switch setting list

2

12

1

14

1

6

GND1

1222

1

1332

12

1

12

R49

1

1

1

1

3

4

SW

3

1

IC62

62

656454865654442

1117118212116 6
15

133
34

1435

11298

1Y1IC110211413363738394041742

6432544445

32111 2486463

121121212ON12SW2423212112SW8ON2ONSW622SW42SW5212SW7266

12115IC2

1344266

11R46

1C2525IC3

1121ONC242ON

1212111098

76ON

2

54321344

12211245

44432211221122299 30 31 32 33 34 35 36 37 38 39 40 41 442 2272821261425242322201918171615R152122111

GND2
GND212321CN3

Comments

spidev1.0/0

Lower board

Do0...Do7MCP23S17

spidev1.0/1

Lower board[1.1/0JP selectable]

Reserve---spidev1.1

Lower board

Ext.SPI---

spidev1.2

Upper board

CAN0

MCP2518FD

spidev0.0:can0

Lower board

CAN1

MCP2518FD

spidev0.1:can1

Lower board

Ai0...Ai3

ADS1115i2c-1/0x48

Upper board[CSI i2c-3/0x48]

Ao0...Ao1

MCP4728i2c-5/0x60

Upper board[i2c-0 JP selectable]

RTC,NVRAM*1

MCP74910

i2c-5/0x57,6F

Lower board

RS-232/485

TXD1,RXD1

ttyAMA0

Lower board

STM32 VCOM

STM32-VCOM

ttyACM0

Upper board Max.921.6kbps[vcom]

STM32 DIO*2

STM GPIO---Upper board

RS232 3w Max.250kbps
RS485 2w Max.500kbps*1 When using RTC on the Raspberry Pi OS side, NVRAM cannot be connected on the Codesys side.
*2 The default protocol to access IO and LED of STM32 is ModbusRTU.

STM32 ModbusRTU link map (slave address 1)<Digital Input / Modbus Holding Register>
memory offset
STM32 Linkword/bit<Digital Output / Modbus Holding Register>
memory offset
STM32 Link
word/bit

0/0...7(unused8...15)

Di0 ... Di7

10/0...3(unused4...15)

Do0 ... Do3

1...9/0..15

Reserved

11/0...1(unused2...15)

LED Red, Green

12...19/0...15

Reserved

Optional accessories

51

3

K

Port/Address

KDevice

MCP23S17

LED1

SignalDi0...Di15

A* Not recognized at i2c bus speed of 400kHz or higher. Therefore, it does not conflict with MCP4728.

42

1

1
1R44

2

12

66

5

4

3

12WDI

152

51

50

49

48

47

46

56

55

54

53

1234
56857

7IC1013212111092GPIO45/Out

Ai1

SW7 SW7 Ai3

C17MAX6373KA+T

1R43

WD Reset

R7SW1

SET0 (SET1: Always High, SET2: Always Low)

5R18 R2756

MIPI CSI-2 2-lanes

GPIO44/Out

C47

CAM1MAX6373KA+T

R16

CM4/CAM1

WD Enable

1

R283CSI1014

i2c1: GPIO44,45 / when not using WD

R17IC11

L1

GPIO44,45/i2c-1

C4664328

1

CM4/GPI44,45

15

R6111151C56
121121C45112122451231221211ONON2ON

SW9ONR40ON2ONONON

R39

SW32R38C57

IC15R372ON

2R36

1C20626160595857565554535251

49

212R4 2 C5 91R4 1 C5 8IC14R351ON

50

22C2146
47

C19C44C43

SW5CSI:i2c

IO expansion board side device

22423222120

193130292827262532

322-wire, max. 400kbps

13-wire, max. 250kbps

ttyACM1

SW6 SW5

SW6 Ai2

3

ttyACM1

MCP2200-I

SW8R45

MCP2200-I

OPT:RS-485

R1451

OPT:RS-232

SW343R20R24

i2c0: GPIO0,11C51

i2c-0/---C5R2CM4/GPIO0,153

R19R23

OPT:i2c41R22R26

i2c0: GPIO0,164

Y249

R21R25i2c-0/0x68

R548DS3231SN

3216221544
321IC1321111211C12C11+24V+12V
1733

RTC

C188SW9(option)

SW2C2C23

1R33

5+5V

R 34

C53

C14C132711IC71IC8+3R3V

IC9C16C15Name

SW1 STM32
Reset
SW2 STM3Boot0
SW3 Do Sig.
select
SW4 Ai0

GND333R50

i2c0: GPIO0,1110/100Mbps

i2c-0/0x60

3eth1

ATECC508A

61LAN9514i

Security IC

4R51

E1:FLAN6310/100/1000Mbps

R12Comments

eth0

1

Port or connection

R52Device

CM4R11R13Signal

E0:GLAN

R10Setting

SW4SW6(DIO model is not mounted)

Main board side device

Name

SW1 Do Sig. OFF*:PushPull High 0.1A
select
ON:Highside Low 0.5A
OFF:RS-232C
SW2 RS
comm.
ON*:RS-485
OFF:RS-232C
SW3 RS
comm.
ON*:RS-485
OFF:Terminator OFF
SW4 CAN0
terminator ON*:Terminator ON
OFF:Terminator OFF
SW5 CAN1
terminator ON*:Terminato ON
SW6 CAN/Di Switchable by product model
selectOFF*:1port(CAN1not implemented)
ON:2port(CAN0,1implemented)* :Default configuration

SW4SW1

SW8 Ao0
SW9 Ao1Setting

OFF*:Invalid
ON:Valid
OFF:Invalid
ON*:User Flash
OFF*:PushPull High 0.1A
ON:Highside Low0.5A
OFF:0-10VDC
ON*:0-5VDC
OFF:0-10VDC
ON*:0-5VDC
OFF:0-10VDC
ON*:0-5VDC
OFF:0-100VDC
ON*:0-5VDC
OFF:0-10VDC
ON*:0-5VDC
OFF:0-10VDC
ON*:0-5VDC* : Default configuration

Optional accessories
Optional accessories
1mPWR
M8 A-code
2mcable4-pin female to open end
1m
E1[FLAN] M8 A-code 4 pin male2mcable
to RJ45 Plug
0.2m
to RJ45 Jack1m
OPT
M5 4-pin male to open end
2mcable1m
E0[GLAN] ix plug
to RJ45 plug2mix cable
0.2m
to RJ45 Jack
mountDIN rail mount adapter
kitwall mount kit
Antenna
LTE monopole antenna IP20
fot LTELTE flat antenna IP67
GPS/LTE combination antenna IP67

Part Number
21348100489010
21348100489020
72M8M4RM4010LI
72M8M4RM4020LI
72T17001449
72M5M4010G0
72M5M4020G033480653830010
33480653830020
72T17001450IX
20952000004
20953000007
72MICA0000224
72MICA0000225
72MICA0000226

For wireless LAN/Bluetooth[Incl. wireless model W]
Antenna IP20
SMA screw direct

GPS/LTE combination antenna[LTE model option]
IP67/cable 3m
Panel-through-mounting
72MICA0000226
MA111.C.LB.001

LTE monopole antenna[LTE model option]
IP20
SMA screw direct
72MICA0000224
TG.09.0113

LTE flat antenna[LTE model option]
IP67/cable 1m
Attached to glass orresin surface
72MICA0000225
GSA.8835.A.101111(Unit: mm)

3587132

Ordering information
2: CM4 IP20 type

USB089.8

6.2

R : Wired
W : Wirelessrevision number[Part Number] 722RJ I 1 0 0 0R3 3 0 Multi IO modelTwo types of mounting parts options<DIN rail mount adapter><Wall mount kit>
37.5

Φ4.5

96

50.5

wall mountkit mounting hole

Option (OPT)interface
1 RS-232C[standard]
2 I2C
3 RS-485

Expansion interface
COM port, CAN port
1 RS-232Cx1, CANx1port
2 RS-485x1, CANx1port [standard]
3 RS-232Cx1, CANx2port
4 RS-485x1, CANx2port

When selecting CodeSys, please use
32bit OS. If you select 64bit, the license
key will not be the Raspberry Pi version
and you will not be able to use it.

Add-on software
0 None[standard]
1 CodeSys

All data given are in line with the actual state of art and therefore not binding.
HARTING reserves the right to modify designs without giving the relevant reasons.

RAM size [GB]
1 1
2 2
3 4[standard]
4 8eMMC size [GB]
1 8
2 16
3 32[standard]
4 32/SSD128GB
5 32/SSD256GB
6 32/SSD512GB
4,5,6: NVMe fast SSD(Temperature 0-55°C)

Accessory
0 None[standard]
1 ReservedL LTE