MRS CAN I/O PLC Compact Controller

Highlights

Operating voltage: 9-32 V
14 inputs/outputs
1 x CAN interface
8 bit processor
Ingress protection: IP53
Temperature: -40 … +85°C

Programming and use

Programming with MRS Applics Studio
CANopen (CiA401) order version
Stand-alone PLC or I/O module in a CAN network

Technical Specifications

Inputs and Outputs
Number of pins	22
In-/Outputs (total)	14
Inputs (total)	6
Inputs (analog)	6
I/Os (total)	8
I/Os (Input analog)	6
I/Os (Input digital)	2
I/O (Output PWM capable)	6
I/O (Output digital)	2
Output type high side	8
Switching current	3 A @ 85°C
Interfaces
CAN interface(s)	1
Serial Interface(s)	1
Mechanical Properties
IP rating	IP53
Housing material	PA66GF30
Dimensions	60 × 60 × 30 mm
Programming
Programming software	MRS Applics Studio
General Information
Temperature range	-40 … +85°C
Operating voltage	9-32 V
Quiescent current (12V)	40 µA
Quiescent current (24V)	140 µA
Vref current limit	500 mA
Processor architecture	8 bit

Input, output and protection details

According to the data sheet, the 14 inputs and outputs are split into 6 inputs and 8 I/Os. Inputs can be configured as digital, positive encoder signal or analog (0…11.4 / 33.68 V); depending on the assembly, a low-side digital input, encoder signal, frequency input and an analog input (0…24.5 mA, PT1000 sensor) are also available. Outputs are configured as digital, positive switching (high side); depending on the version, a PWM output (3 Hz…500 Hz) and a 5 V reference voltage source are offered.

Protection, interface and mechanics

Short-circuit protection against GND and UB on the outputs
Internal overtemperature protection; latch-off can be realized by the software application
Wire-fault and short-circuit diagnostics are possible via current sense
Reverse polarity protection
CAN interface 2.0 A/B, ISO 11898-2 compliant
Plastic housing, 22 pin Molex Mini Fit Junior connector, weight 75 g

Order options

1.033.304.0001	Basic
1.033.305.0001	5 Vref Outputs
1.033.306.0001	3x current inputs
1.033.308.0001	30V analog inputs
1.033.309.0001	2x RPM Inputs
1.033.30B.0001	3x Pull-Ups, 5 Vref Output
1.033.30C.0001	3x Pull-Up
1.033.30E.0001	2x RPM Inputs 4,5V
1.033.30K.0001	2x RPM Inputs, 5 Vref Output
1.033.30P.0001	3x PT1000 Inputs
1.033P.300.0001	CANopen (CiA401)
1.033P.305.0001	CANopen (CiA401), 5Vref Output
1.033.320.0001	RS485 Gateway
1.033.330.0001	RS232 Gateway

Versions: CANopen, RS232 and RS485

In the order options table, codes 1.033P.300.0001 and 1.033P.305.0001 are the CANopen (CiA401) versions; 1.033.320.0001 is the RS485 gateway and 1.033.330.0001 the RS232 gateway version. Versions with a serial interface exchange data (gateway) between CAN and the serial interface.

EHR Elektronik’s CANopen I/O node application

The MRS CAN I/O PLC is built for the realities of mobile machinery and commercial vehicles. For this module (order code 1.033.305.0001), EHR Elektronik delivered a complete CANopen application: firmware, documentation and a Windows commissioning tool. Because the module is exposed through standard SDO / PDO / NMT services, a CANopen master can integrate it without a custom protocol layer. See the CANopen I/O node for the MRS CAN I/O PLC page for details.

Other MRS CAN I/O controllers

For waterproof applications see the MRS CAN I/O PLC WP PRO V2; for a 32 bit processor and 2 x CAN interface see the MRS CAN I/O CC16WP. All products are listed in the MRS Electronic category.

EHR Elektronik develops application software for MRS Electronic control units.

Frequently asked questions

Which software is used to program the MRS CAN I/O PLC?

It is programmed with MRS Applics Studio, the stand-alone development and tool platform MRS provides for its modules.

Is ready-made CANopen I/O software available?

For the MRS CAN I/O PLC with order code 1.033.305.0001, EHR Elektronik has delivered a CANopen application consisting of firmware, documentation and a Windows commissioning tool. Details are on the CANopen I/O node page.