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BAR  H

Elektronik GmbH

®

3/7
9021-0011-A
21.04.2016
A

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Document:
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Mini-PLC
STG-660 CAN
Art. No. 0850-0660

MANUAL

© 2014-2015 BARTH Elektronik GmbH | Im Depot 1-3 | D-49838 Lengerich | www.barth-elektronik.de
® BARTH is a registered trademark. All rights reserved.

9021-0011-A

connect a variety of CAN or RS-485 network components 
to the Mini-PLC, for example: displays, stepper motors or 
CAN sensors.
The STG-660 does not need any peripheral components to 
operate. Both inputs and outputs features highly integrated 
and rugged protection circuits to operate the Mini-PLC in 
really harsh environment.
These outstanding features open up a variety of application 
fields in industrial, automotive and 12/24V battery-powered 
applications. The STG-660 is also available as customer-
tailored OEM version.

4.4 

Delivery content

•  BARTH

®

 Mini-PLC STG-660 CAN

•  Spring terminal connectors (for supply, CAN, I/O)

INSTALLATION

5.1 

Mounting

The Mini-PLC must be installed and wired 
by a trained technician who knows and 
complies with both the universally appli-
cable engineering rules and the regulati-
ons and standards that apply in specific 
cases.

Fastening the STG-660 follows using either the integrated 
mounting holes for screws or the holes for cable ties. The 
cable tie installation method is recommended for fastening 
the STG-660 on wiring harness, tubes or other mechanical 
parts.

Take care to meet the environmental conditions of the 
Mini-PLC.

5.2 

Wiring

5.2.1  Overview

The graphic below shows the connection layout of the 
BARTH

®

 Mini-PLC STG-660 CAN.

X1 connector: supply and CAN pins
X2 connector: PLC inputs
X3 connector: PLC outputs
X4 connector: TTL-232/USB interface (VK-16)
X5 connector: MICROCHIP

®

 ICSP

®  

(VK-6)

5.2.2  Connecting the power supply

The STG-660 features an outstanding wide supply voltage 
range from 7 to 32 VDC at lowest current consumption.
So the Mini-PLC can be integrated within battery supplied 
12V or 24V DC systems (cars, trucks, battery powered cars, 
forklifts and digger, for example).

Turn off the power supply before perfor-
ming any wiring operations!

False electrical connection, voltage 
reversal or disregarding the electrical 
specifications may cause irreversible 
damage of the Mini-PLC!

Connect the supply voltage of 7 to 32 VDC to the 4-pole 
terminal X1 of the STG-660. Wire the positive supply to the 
‚+VDD‘ marked connection. The negative (ground) will be 
wired to the ‚GND‘ connection. All terminals are carried out 
as plugable spring terminal connectors for a wire gauge of 
0.25 to 1.5mm². 

Ensure correct power supply voltage 
range and polarisation! External fusing of 
8A max. is mandatory!  Disregarding may 
cause irreversible damage of the PLC!

5.2.3  Connecting the inputs

You can connect sensors, switches or buttons to the inputs. 
The sensors may be temperature, flow, pressure, photo-
electric sensors or proximity switches, for example.
The STG-660 is well suitable for any sensor featuring a vol-
tage output, 0 to 10 VDC, for example.

Common features of the inputs

•  IN1 to IN6 are selectable analog/digital inputs
•  IN7 and IN10 are pure digital inputs (up to 10kHz)
•  Wide input voltage range 0 to 32VDC
•  IN1 to IN6 are 0 to 10 V compatible
•  Comprehensive integrated protection circuits
•  Outstanding electromagnetic compatibility (EMC)
•  Electrostatic discharge protection (ESD)

Due to the pull-down resistors integrated in the STG-660 
any switch (NO/NC) can simply be connected between the 
positive supply (VDD) of the STG-660 and the desired input. 

The voltage at any input must not exceed 
32VDC referred to ground (GND).
Higher voltages or reverse voltage lower 
than -32VDC may cause irreversible 
damage of the Mini-PLC!

The 10-pole connector named X2 contains the inputs of the 
Mini-PLC. While IN7 to IN10 are pure digital inputs, IN1 to 
IN6 provide both digital or analog functionality. The voltage 
range for all inputs may not exceed 32 VDC. All inputs refer 
to GND. Please refer to the appendix for detailed electrical 
specification of the inputs. 

Summary of Contents for Mini-PLC STG-660 CAN

Page 1: ...necting the power supply 3 5 2 3 Connecting the inputs 3 5 2 4 Connecting the outputs 4 5 2 5 Connecting the CAN interface 4 6 OPERATION AND PROGRAMMING 4 6 1 Programming software 4 6 2 Programming templates 4 6 3 Virtual COM port driver installation 4 6 4 Connecting the Mini PLC 4 6 5 Programming 5 7 APPENDIX 5 7 1 Specifications 5 7 1 1 General 5 7 1 2 Power supply 5 7 1 3 Inputs 5 7 1 4 Outputs...

Page 2: ... functionality of the Mini PLC in case of disregar ding this manual The strict accordance of this manual is important since the installation methods peripheral connections usage and maintenance can not be con trolled by BARTH Elektronik GmbH Therefore BARTH Elektronik GmbH assumes no liability for any claim 4 PRODUCT DESCRIPTION The picture below shows the BARTH Mini PLC STG 660 Art No 0660 0660 i...

Page 3: ...integrated within battery supplied 12V or 24V DC systems cars trucks battery powered cars forklifts and digger for example Turn off the power supply before perfor ming any wiring operations False electrical connection voltage reversal or disregarding the electrical specifications may cause irreversible damage of the Mini PLC Connect the supply voltage of 7 to 32 VDC to the 4 pole terminal X1 of th...

Page 4: ...state highside outputs and 1 solid state lowside switch with PWM functionality Common features of outputs OUT1 to OUT8 Rugged solid state higside switch up to 1 5A Paralleling permissible up to 6A Short circuit protection and current limitation Fast demagnetization of inductive loads Stable behaviour at undervoltage Comprehensive integrated protection circuits Outstanding electromagnetic compatibi...

Page 5: ...ourite compiler tool BARTH recommendes to integrate your compiler software within the Microchip MPLABX software which supports both programming simulating and debugging Get the latest MPLABX software and several related soft ware tools for the STG 660 on www microchip com 7 APPENDIX 7 1 Specifications 7 1 1 General Hardware design BARTH Mini PLC fully enclosed in proprietary PU resin tiny and rugg...

Page 6: ...EPROM data memory 1024 byte byte endurance 100 000 min characteristic retention 40 yrs 7 1 8 Timebase oscillator Primary Oscillator Crystal quartz MEMS unit precise micro electro mecha nical system Nominal Frequency 16 000 MHz Frequency tolerance 50 10 6 Frequency aging 5 10 6 year max Second Fail Safe Oscillator 16 MHz 7 1 9 Electrical connection Electrical Connection plugable spring terminal con...

Page 7: ...ntre or dealer for details about how to do this in accordance with the applicable disposal regulations 7 4 Conformity declaration For the following designated product it is hereby confirmed that the construction in that technical design brought by us in traffic corresponds to the standards specified below In the event of any alternation which has not been approved by us being made to any device as...

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