BAR H
Elektronik GmbH
®
2/8
9021-0016-A
04.08.2016
A
Page:
Document:
Date:
Revision:
Mini-PLC
STG-680
Art. No. 0850-0680
MANUAL
© 2014-2016 BARTH Elektronik GmbH | Im Depot 1-3 | D-49838 Lengerich | www.barth-elektronik.de
® BARTH is a registered trademark. All rights reserved.
9021-0016-A
1
SAFETY INSTRUCTIONS
This manual contains notices which you should observe
to ensure your own personal safety, as well as to protect
the product and the connected equipment. These notices
are highlighted in the manual by a warning symbol and are
marked as follows according to the level of danger:
Only qualified personnel should be
allowed to install and work on this
equipment. Qualified persons are
defined as persons who are authorized
to commission, to ground and to tag
circuits, equipment and systems in
accordance with established safety
practices and standards.
Turn off the power supply before
performing any wiring operations!
Short circuits can be harmful, critical and
can cause explosions and serious burns!
Please read this manual carefully and
observe all safety instructions!
2
DESTINATED USE
The Mini-PLC is designed for universal measuring, con-
trolling and regulating applications.
It must not be used for life critical, medical or fail safe
applications.
3
DISCLAIMER
BARTH Elektronik GmbH assumes no liability for usage
and 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-680
with the connection cable VK-16 (Art. No. 0019-0016).
The Mini-PLC is shipped without the USB connection cable
VK-16.
4.1
Features
• 6 analog Inputs 0..10 VDC, 12 bit ADC
• 4 digital Inputs up to 1 kHz
• 8 Power Outputs up to 1.5 A
• 1 Power PWM Output 2 A/1 to 10 kHz
• 1 MODBUS RTU Interface
• Graphically programmable MODBUS Data
• Reliable Solid-State Outputs
• Fail Safe Oscillator
• Programmable Status LED
• TTL-232/USB Connection to PC
• Intuitive graphical Programming Capability
• Wide Operating Voltage Range 7..32 VDC
• Wide Operating Temp. Range -40..+60°C
• Ultraflat Housing, Height 11 mm
• Vibration resistant and rugged Sealing
• Engineered and manufactured in Germany
4.2
Applications
• Industrial Automation
• Building Automation
• Process Control
4.3
General description
The innovative STG-680 extends the established BARTH
®
Mini-PLC series with an additional model featuring a rugged
MODBUS interface with graphical programming and confi-
gurating capability.
With similar dimensions in comparison to the STG-650, the
STG-680 provides outstanding graphical programming at
lowest current consumption and the well-known small form
factor.
The MODBUS interface allows the user to connect a variety
of industrial network components to the Mini-PLC.
The STG-680 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 and also in bat-
tery-powered applications.
The STG-680 is also available as customer-tailored OEM
version.