Pin Configuration of Ethernet Cable Connector RJ45

You need to contact your A/B representative or one of their integrator's. They can have a sales engineer assist you as there is more to net working these units then just cable and pin configurations.

the diagram you show tells you to wire it TIA/EIA-568A. But if your plant standard is 'B', no harm done so long as everything is the same. Nearly all of our PLCs are connected to the LAN and I can monitor and make changes on the fly from the shop.

This might help...

http://www.automationengineering.co.uk/2011/08/19/free-scada-how-to-connect-excel-to-allen-bradley-compactlogix-plc/

http://www.rtaautomation.com/products/490/TCPCompact.html

http://www.scadametrics.com/PDF/App_Note_005.pdf

http://www.ab.com/en/epub/catalogs/12762/2181376/104830/2746667/print.html

Dears;

Can any one explain me about the difference/usage of following two types of Ethernet connector RJ45 configurations;

1) T-568A Straight-Through Ethernet Cable

2) T-568B Straight-Through Ethernet Cable

The two wiring standards, T568A and T568B vary only in the arrangement of the colored pairs....sources suggest using T568A cabling since T568B is the AT&T standard, but the US Government specifies T568A since it matches USOC cabling for pairs 1 & 2, which allows it to work for 1/2 line phones...". Your choice might be determined by the need to match existing wiring, jacks or personal preference, but you should maintain consistency. I've shown both below for straight through cabling....

RJ45 Pin #	Wire Color (T568A)	Wire Diagram (T568A)	10Base-T Signal 100Base-TX Signal	1000Base-T Signal
1	White/Green		Transmit+	BI_DA+
2	Green		Transmit-	BI_DA-
3	White/Orange		Receive+	BI_DB+
4	Blue		Unused	BI_DC+
5	White/Blue		Unused	BI_DC-
6	Orange		Receive-	BI_DB-
7	White/Brown		Unused	BI_DD+
8	Brown		Unused	BI_DD-

Straight-Through Ethernet Cable Pin Out for T568A

RJ45 Pin #	Wire Color (T568B)	Wire Diagram (T568B)	10Base-T Signal 100Base-TX Signal	1000Base-T Signal
1	White/Orange		Transmit+	BI_DA+
2	Orange		Transmit-	BI_DA-
3	White/Green		Receive+	BI_DB+
4	Blue		Unused	BI_DC+
5	White/Blue		Unused	BI_DC-
6	Green		Receive-	BI_DB-
7	White/Brown		Unused	BI_DD+
8	Brown		Unused	BI_DD-

Straight-Through Ethernet Cable Pin Out for T568B

http://www.ertyu.org/steven_nikkel/ethernetcables.html

.....and some software to drive the signals correctly?

Rockwell Software recommends using "managed" switches to reduce the risk of data collisions on your industrial network. Managed switches like the Stratix 6000 are pretty expensive, but they also contain tools to help with troubleshooting network traffic issues.

Here's a list of Ethernet switch recommendations from Allen Bradley's Ethernet/IP Performance Guide (Publication ENET-SO001A-EN-E-November 2007)

For Best Practice Use Switches with the Following Features:

�� VLAN

�� Full duplex capability on all ports

�� Autonegotiation and manually configurable speed/duplex

�� IGMP snooping

�� Port mirroring

�� STP

�� QoS

�� SNMP