turck BL20-PG-EN-V3 - 2 General Function Description; Function Description

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V01.0| 2016/04
Programmable Gateways BLxx-PG-EN-V3
2 General function description
2.1 Function description
The programmable BL20/BL67 gateways can be used as autonomous PLCs or as decentral PLCs in a
network interconnection for a fast preprocessing of signals. The programmable gateways allow
autonomous control of applications without higher-level control.
The Ethernet ports serve as interface for programming, configuration and field bus communication.
Thanks to the multiprotocol Ethernet technology, the device can be used as slave with PLCs or PC
based systems with PROFINET, EtherNet/IP™ or Modbus TCP. In addition to that, the device can be
operated as Modbus TCP-master.
Gateways are the head component of a BL20 station. The electronic modules communicate over the
internal module bus with the gateway and can be configured independently of the fieldbus proto-
col.
Properties:
 Programmable according to IEC 61131-3 with ODESYS V3 in:
– IL = Instruction List
– LD = Ladder Logic
– FBD = Function Block Diagram
– SFC = Sequential Function Chart
– ST = Structured Text
 Ethernet- and programming interface
 Integrated Gold CAP-buffered RTC (Real Time Clock)
 USB Device Port as programming and service interface
 USB Host Port for connecting USB memory sticks for firmware-update, program backup, program
restore, data synchronization
 Protocol converter - for example from Ethernet to serial communication.
 LEDs for display of PLC status (LED APL, LED RUN), supply voltage (LED VI/VO, BL67 only), group
(LED ERR) and bus er
rors (LED BUS)
 Integrated Ethernet switch allows line topology
 Integrated web server
 Field bus connection
– BL67-PG-EN-V3: Ethernet, 2 x M12-female
connector, 4-pol. D-codes
– BL20-PG-EN-V3: Ethernet, 2 x RJ45-ports,
 Power supply
– BL67-PG-EN-V3: 5-pole 7/8"-connector
– BL20-PG-EN-V3: screw terminals
 Protection class:
–
BL67-PG-EN-V3: IP67
– BL20-PG-EN-V3: IP20