Introduction Introduction This document describes the usage of an EPL Gateway. The EPL Gateway includes several fea- tures and enables to analyze and configure an EPL network. Deutschmann Automation´s EPL Gateway supports the following tools: EPL Device Monitor Our application tool partner writes this tool like "EPL-REport". For the EPL network configuration CANopen mechanisms are used.
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Introduction Deutschmann Automation GmbH & Co. KG Others One advantage of Industrial Ethernet is the huge number of available protocols and mecha- nisms. Route type 1 allows to route IP packets from office network to EPL network. So it is possi- ble to access every node over a protocol that is IP based like HTTP or FTP.
Deutschmann Automation GmbH & Co. KG Hardware Hardware The following schematic shows an EPL Gateway’s front view: The EPL gateway is structured in following areas: • • Generic • Basic The EPL area includes an RJ45 interface, two EPL indication LEDs ("State" LED = BS; "Err" LED = BE) and node ID selector.
Web interface Deutschmann Automation GmbH & Co. KG Web interface The Web Interface allows to configure the EPL gateway without any special EPL tools for SDO transfer. Actual design depends directly on EPL object dictionary. Every screen represents one special index.
Deutschmann Automation GmbH & Co. KG Web interface Basic: Routing The previous screen shows settings based on EPL index 0x1E90 - 0x1ECF. The routing screen allows to view or delete existing routes and to add new routes. Every time 4 existing routes are part of the routing table, which are based on the actual IP address.
Web interface Deutschmann Automation GmbH & Co. KG Basic: Network Address Translation (NAT) The following screen shows the settings based on EPL index 0x1D00 - 0x1DFF: The network address translation shows a table for the translation between the EPL addresses and the generic addresses.
Deutschmann Automation GmbH & Co. KG Web interface NAT is principally used because public IP addresses running out in bigger networks. NAT allows using private IP addresses in an internal network. Every request, which is sent over a NAT gateway, gets a new IP source address. Frames, which come to a network over a NAT gateway, get a correct destination IP address from the NAT table.
Web interface Deutschmann Automation GmbH & Co. KG 3.5.1 File layout The file layout is kept in a very simple way to reduce the file size. The following table shows the main keywords from the file: Keyword Description Create a new index and link it in the object dictionary.
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Deutschmann Automation GmbH & Co. KG Web interface 0x1F8D NMT_PResPayloadList_AU16 This object holds a list of the expected PRes Payload data size in octets for each configured CN that is isochronously accessed, e.g. via PReq / PRes frame exchange. 0x1F98...
Setups Deutschmann Automation GmbH & Co. KG Setups The following chapter gives an overview over two scenarios with the EPL Gateway. Variant 1 (No NAT) This variant includes a PC with one network interface, EPL Gateway and MicroWeb Target2 with I/O extension as CN.
Deutschmann Automation GmbH & Co. KG Setups Variant 2 (with NAT) The following schematic shows a good setup for development environments: PC contains two Ethernet interfaces. One is connected to the office network and allows access to the ethernet or share files. The other Ethernet interface is connected directly to the EPL network to analyse EPL traffic with tools like Ethereal (www.ethereal.com).
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Setups Deutschmann Automation GmbH & Co. KG • See the following NAT table on the gateway's web interface: Instruction manual EPL-Router V. 1.1 23.4.10...
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Deutschmann Automation GmbH & Co. KG Setups • See the following routing table on the gateway's web interface: 23.4.10 Instruction manual EPL-Router V. 1.1...
Deutschmann Automation GmbH & Co. KG Generic IP address Generic IP address To setup the device IP addresses please modify generic.bin (for software version V1.0). Default generic IP in generic.bin: 172.16.48.220 Make a ftp connection (like Total Commander) and change the IP address with an editor.
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