ATI Technologies Metrinet Manual de usuario

O & M Manual

Metrinet

Ethernet-IP Communication Manual

Home Office European Office

Analytical Technology, Inc. ATI (UK) Limited

6 Iron Bridge Drive Unit 1 & 2 Gatehead Business Park

Collegeville, PA 19426 Delph New Road, Delph

Phone: 800-959-0299 Saddleworth OL3 5DE

610-917-0991 Phone: +44 (0)1457-873-318

Fax: 610-917-0992 Fax: + 44 (0)1457-874-468

Email: sales@analyticaltechnology.com Email: sales@atiuk.com

Table of Contents

Ethernet/IP Option ........................................................................................................... 3

1.1 General ............................................................................................................. 3

1.2 Ethernet/IP Communication .............................................................................. 3

1.3 Ethernet/IP Transmission Details ...................................................................... 4

1.4 Cable Connection ............................................................................................. 4

1.5 Configuring MetriNet for Ethernet Option .......................................................... 6

1.6 Configuring fixed IP with BOOTP ...................................................................... 6

1.7 Loading EDS File ............................................................................................ 11

1.8 PLC Object Generic Settings .......................................................................... 11

1.9 PLC Object Settings Parameter Detail, and EDS Files ................................... 13

1.10 Optional Tool Examples: RSLinx Classic ........................................................ 27

Table of Figures

Figure 1 – Ethernet Cable Routing on MetriNet .............................................................. 5

Figure 2 - RJ45 Crimp Tool ............................................................................................. 5

Figure 3 – Force PC to Specific Network Subnet Prior to Running BOOTP .................... 7

Figure 4 – Launching BOOTP server .............................................................................. 7

Figure 5 – Setting IP/mask Assignment in BOOTP Server .............................................. 8

Figure 6 – Successful Detection of MAC ID and IP Address ........................................... 9

Figure 7 – PING and ARP Command Tests for IP Address Setting. ............................. 10

Figure 8 – Generic Module Input/Output Settings ......................................................... 12

Figure 9 – Connection/RPI Settings .............................................................................. 12

Figure 10 –Output Assembly Object Command Example with EIP_Tool ...................... 23

Figure 11 –Special Write-Codes for MetriNet Variable Changes .................................. 24

Figure 12 – TCP Object Query Example with EIP_Tool ................................................ 25

Figure 13 – Ethernet Link Object Query Example with EIP_Tool .................................. 26

Figure 14 – RSLinx Classic ........................................................................................... 28

Figure 15 – Adding Ethernet/IP Driver........................................................................... 28

Figure 16 – New Node Added Successfully to Driver Application. ................................ 29

Figure 17 – Creating DDE/OPC Topic ........................................................................... 29

Figure 18 – Processor Selection for PC-based OPC Topic ........................................... 30

Figure 19 – RSLinx OPC Test Client ............................................................................. 30

Figure 20 – OPC Running On Active Node Data .......................................................... 31

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

Ethernet/IP Option

1.1 General

MetriNet Monitors are available with three digital communication options: Cellular,

Modbus-RTU, Modbus-TCP/IP, and Ethernet/IP. This manual applies only to

instruments supplied with the Ethernet/IP communication option. It is critical to

note that Ethernet/IP devices only communicate with other systems running the

“Industrial Protocol” of Ethernet. You cannot plug a MetriNet into your office

Ethernet and expect to have the instrument talk to your desktop computer.

The discussion of standard Ethernet and Ethernet/IP is vast, and well beyond the

ability to discuss here in great detail. The documentation for this option assumes

working network knowledge by the user.

1.2 Ethernet/IP Communication

Ethernet/IP was first introduced in 2001, and is a highly developed and complete

protocol for an industrial Ethernet network solution. Intended for automation

applications, EtherNet/IP is a member of a family of networks that implement the

Common Industrial Protocol (CIP) at its upper layers of the standard ISO/OSI 7-

layer model. CIP defines the object structure, specifies the message transfer,

provides users with a unified communication architecture, and encompasses a

comprehensive suite of services for a variety of manufacturing automation

applications which include data, control, safety, and configuration.

In the CIP Protocol, every network device represents itself as a series of objects.

Each object is simply a grouping of the related data values in a device. The identity

object contains related identity data values called attributes. Attributes for the

identity object include the vendor ID, date of manufacture, device serial number

and other identity data.

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

1.3 Ethernet/IP Transmission Details

It should be understood that Ethernet/IP is simply an application layer protocol that

is transferred over an Ethernet hardware link. The word "Ethernet" simply refers

to the common physical cable, perhaps running to an office PC.

In the OSI model, “Ethernet” is the lower part of the model, the physical transfer

method or the hardware. It says nothing about the way information is transferred,

which is specified near the top of the OSI model. In the common office network,

many different standard communication protocols are operating during normal

office use, like IP, TCP, etc. None of these are designed to handle the CIP

industrial format, so that interface must be handled by a specific program that

recognizes the format. Because of this, an Ethernet/IP device cannot be directly

connected to your office network for transferring information.

The data for the protocol is constructed into a specific structure inside a standard

TCP/IP Packet. A user application program simply decodes the structure inside

the received TCP or UDP packet. The data structure consists of a grouping of

data values called Attributes inside other sets of containment data called Objects.

There are Ethernet/IP required Objects and application Objects. Required objects

are typically - Identity, TCP, and Router. Application objects consist of some

defined data types, like a Motor Object, and some user specific data types.

1.4 Cable Connection

The cable used for Ethernet/IP communication should meet the CAT5 standard

defined by the Electronic Industries Association and Telecommunications Industry

Association. It is readily available in lengths up to 100 ft. (30 m) with plugs on each

end.

To install an Ethernet cable in the MetriNet, pass the unterminated cable through

the cable gland nearest the location of the RJ45 connector on the Ethernet/IP

option board. Provide a slight service loop amount of slack so that the terminated

cable will not be pulling directly on the RJ45 connector once installed. Termination

of Cat5/5e/6 cables is very easy and can be completed quickly with the commonly

available RJ45 crimp tool.

Note that there a reconnection LEDs present on the face of the RJ45 connector,

which can be used to verify activity on the interface. Rather than detail their

specific use, it is sufficient to just very flashing on these LEDS when the unit is

powered up or actively communicating with the network client.

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

Figure 1 – Ethernet Cable Routing on MetriNet

Figure 2 - RJ45 Crimp Tool

While professional results are optimized with the use of the termination tool and

custom cable lengths, patch cord style connection can be completed in some

cases by passing the finished RJ45 connectors through the enclosure cable gland.

The connector will fit through the plastic part of the cable gland, and the rubber

grommet can be slit (some RJ45s may be too big for this.) Once the connector is

inside the enclosure, simply plug it into the jack provided on the Ethernet/IP

communication board. Be sure to adjust the rubber insert in the cable gland so

that the slit is on the bottom and then tighten the gland to seal around the wire.

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

1.5 Configuring MetriNet for Ethernet Option

Once the proper power is applied to the MetriNet monitor, select “Ethr” in the

^Host Comms listing of the OPTIONS menu to enable Ethernet/IP functionality.

1.6 Configuring fixed IP with BOOTP

The next step in the use of the MetriNet is to sort out how an IP network address

will be assigned to the instrument. The MetriNet acquires a dynamic network IP

address from the network client/master through the BOOTP service, which is

enabled by default for ODVA EIP-CIP conformance.

BOOTP is a very simple software server application that waits for a specific MAC

address to appear on the network, and then assigns it a pre-determined IP address

that has been set-up by the user. In the most actual applications, BOOTP runs

right on the PLC alongside tools like Rockwell’s Logix/Studio 5000. For manual

fixed settings, this same BOOTP server tool can be easily run on a PC. The current

Rockwell version of this tool (recommended) is –

“BootP-DHCP Ethernet/IP Commissioning Tool Version 3.02.00”

This tool is available from the Rockwell Automation website for free. For optimum

security, only download this tool directly from Rockwell Automation.

While this tool is normally used for dynamic assignment, the MetriNet will

remember the last successful assignment made by BOOTP, and it will retain that

assignment after cycling instrument power. Therefore, the tool can be used to lock

in a fixed IP address assignment, and then the BOOTP service will not actually be

required after that first assignment.

In order to use BOOTP properly on a PC, some careful NIC adjustment settings

must be made to the PC Ethernet port prior to running the BOOTP service. The

PC can only reach IP addresses at the predetermined IP/subnet level, so we must

force the PC to a subnet that can reach the existing MetriNet.

1) Turn off MetriNet. Connect MetriNet to laptop with direct cable. Set laptop

NIC port on a locked IP and subnet to stop DHCP service. In IPV4

properties on your PC’s Ethernet connection port, select "Use the following

IP Address" and set the PC to fixed IP of -

IP Address = 192.168.0.10

Subnet Mask = 255.255.255.0

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

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Figure 3 – Force PC to Specific Network Subnet Prior to Running BOOTP

2) Once this IP/subnet is set, click OK to save and then close it all out. Turn

PC off then back on to place it on the new IP address set in step 1. The PC

will now be able to access any network device on 192.168.0.X, as the

subnet mask 255.255.255 locks in the first three variables. The default

value for the MetriNet is 192.168.0.254, so it can now be reached by the

PC.

3) Find the Rockwell BOOTP PC application and launch it. Select your

Ethernet Adapter as the network interface.

Figure 4 – Launching BOOTP server

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

4) On next screen, you must create an assignment relationship to match a

known MAC ID with a desired IP address. The MAC ID for your MetriNet is

written on a label inside the enclosure. For this example, we will use the

MAC ID - 00:80:A3:9B:BE:B6 and assign it an IP of 192.168.0.30. Hit OK

after this information is filled in, and you will see this entry appear in the

bottom half of the window under “Entered Relations.”

Once the MAC assignment has been entered, it is ready for a BOOTP IP

request to come in for assignment. Requests for assignment will appear in

the upper window as they come in.

Figure 5 – Setting IP/mask Assignment in BOOTP Server

5) Now, plug the cable from MetriNet into the PC Ethernet port, turn on power

to the MetriNet, and wait for BOOTP to detect the request from the MetriNet

for an IP address.

The upper “Discovery History Window” will show new IP requests coming

in on the Ethernet port, and when the specific MAC ID in our relation shows

up, the IP will be automatically assigned per our relation entry and sent to

the MetriNet. Note that you may see requests from other devices as they

come in, but only the specific MAC ID from the assignment will be

acknowledged.

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

Figure 6 – Successful Detection of MAC ID and IP Address

Assignment in BOOTP Server

Once the assignment has been made and the IP has been sent to the

MetriNet, disconnect power to the MetriNet and that IP will be stored in the

instrument. The MetriNet stores the very last successful IP address

assignment. Then close out all BOOTP server windows.

6) Now, to check that the IP address has been properly saved, apply power to

MetriNet again and wait one 1 minute before connecting it to the PC port.

Do not launch BOOTP server this time, as you don’t need it. During the 1

minute wait, MetriNet will search for a BOOTP server on power up and won’t

find the service because it is not used here now, and the MetriNet is also

not connected to the PC. It will then revert to the stored default – the last

successful BOOTP assignment. Connect cable from MetriNet to the PC

after that one minute. You can now check the IP connection to the MetriNet

at that address by entering a ping command at the Windows OS command

prompt, for example “>ping 192.168.0.30.” You should see a response as

shown below. In addition, you can try an “>arp -a” command to show all

current connections and associated MAC addresses. You should see the

new IP address of 192.168.0.30 showing up.

ATI MetriNet Ethernet/IP Communications Manual

O&M Manual

Rev-A (6/19)

Figure 7 – PING and ARP Command Tests for IP Address Setting.

Note that the “arp -a” listing still shows this IP as a “dynamic” assignment,

as this is the fall-back IP that has been stored in the MetriNet. On power

up, the MetriNet will still try and find a BOOTP server for 30 seconds, and

then default to this stored value as the fallback. If you do not see your new

connection, two troubleshooting notes –

1-You must always be careful to place the new IP address on the proper

subnet level so the PC can still reach it with the settings made in step 1. If

the PC is on 192.168.0.X, then any assigned IP must be on the X level –

and don’t place the MetriNet on the same IP as the PC. During BOOTP

server assignment, if you place the MetriNet on a vastly different IP like

10.20.120.100, you must repeat step 1 before step 6 above to place the PC

at something like 10.20.120.10. This can get tricky, as you can make

assignments anywhere, but then the PC must be re-established on that new

net to find the new assignment.

2-Remember to wait a minute before the ping test if you verify a connection.

The MetriNet runs BOOTP by default, so it will be searching for that server

for about 30 seconds on power up, and then will default to the stored IP.

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