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S7 Routing from a PC Station

Created by: JMJ at: 7/9/2008 3:30 PM (5 Replies)

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7/9/2008 3:30 PM	Rate (0)
JMJ Posts: 487 Rating: (45)	Hello, I have a little complicated situation. I have an S7-400 with417-4 CPU and CP443-1. Both part numbers support routing. Now, I have 5 numbers of 315-2DP as DP slave to 417-4. Then I have WinCC running on a Windows 2003 Server with communication over Ethernet. Thiscomputeris a serverarchituecture with two Generic NICs which are paired as a team.IthasStep7 5.4 Pro, Simatic NET, WinCC 6.2 and WebNavigator installed on it.I am using intergrated option. So the computer is configured as a PC station. Now, I need Step 7 to access 315 CPUs via routing from this computer. I see that for routing the PC has to be configured as PG/PC station. But for WinCC it should be PCStation. So what do I do here? Configure two separate stations in the same project(one as PC Station and one as PG/PC) with same IP? Then how do I downloadit to the same computer? Anybodyhasdone this before?
JMJ Posts: 487 Rating: (45)
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7/11/2008 12:47 PM	Rate (1)
J_Bell Posts: 5822 Rating: (412)	Dear JMJ, well you will see that you have a little problem here, because you can not use the same IP Address twice in a STEP7 Project. STEP7 is stubborn here but Microsoft Windows, even if it is not as user friendly as we would like it to be, offers a solution. You may change your IP Settings that way that you have not one but two IP Addresses. That way you can have the PC Station running one IP and the PG/PC running the second IP. This works quite well... even if it may lead to some problem sometimes... but usually this would be the solution for your Problem. You know that you can not run 2 Network cards with different IP’s, but you can handle one NIC with two IP’s... I know this is strange somehow. Be aware that the IP of the NIC in the PC Station may change, so you will have to be careful whichAddress you use. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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7/11/2008 1:34 PM	Rate (0)
JMJ Posts: 487 Rating: (45)	Thank youJ_Bell. I hope it still work on the virtual NIC. My 2 NICs are teamed for the purpose of redundancy. Thanks for the solution. I will try it next week and let you know.
JMJ Posts: 487 Rating: (45)
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7/11/2008 2:16 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello JMJ, I look forward to your experiences. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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7/28/2008 2:08 PM	Rate (0)
JMJ Posts: 487 Rating: (45)	J Bell, The experience was surprisingly pleasant! I did not have to configure anything in the PC. All I did wasintegrate all the PLCs networked in one project and download it to all PLCs. (It added SDB999.)Then they became available for communicationfromany PC with Step-7that was talking directly to S7-400. Of course, I had to enable programming on the DP slave port of all S7-300 PLCs. I guess, this clarifies that the routing tables are only in the PLCs not in the PG/PC.
JMJ Posts: 487 Rating: (45)	Last edited by: JMJ at: 7/28/2008 2:13 PM Last edited by: JMJ at: 7/28/2008 2:11 PM
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7/29/2008 12:15 AM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello JMJ, I am happy to hear that! This is what I hoped. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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